Annual report

Period2025-04-01 → 2026-03-31
Filed2026-06-22
StandardJapan GAAP
ConsolidatedYes
Data checks24 of 24 passed
Key figures · 148
MetricValuePeriodScopeSource row
Revenue¥24.2bn2025-04-01 → 2026-03-31Cons.Net sales
Revenue¥22.5bn2024-04-01 → 2025-03-31Cons.Net sales
Revenue¥20.4bn2023-04-01 → 2024-03-31vCons.Net sales (5-year summary)
Revenue¥18.0bn2022-04-01 → 2023-03-31vCons.Net sales (5-year summary)
Revenue¥16.3bn2021-04-01 → 2022-03-31vCons.Net sales (5-year summary)
Operating income¥2.9bn2025-04-01 → 2026-03-31Cons.Operating income
Operating income¥3.3bn2024-04-01 → 2025-03-31Cons.Operating income
Ordinary income¥3.1bn2025-04-01 → 2026-03-31Cons.Ordinary income
Ordinary income¥3.5bn2024-04-01 → 2025-03-31Cons.Ordinary income
Ordinary income¥3.2bn2023-04-01 → 2024-03-31vCons.Ordinary income loss (5-year summary)
Ordinary income¥2.5bn2022-04-01 → 2023-03-31vCons.Ordinary income loss (5-year summary)
Ordinary income¥2.1bn2021-04-01 → 2022-03-31vCons.Ordinary income loss (5-year summary)
Profit before tax¥3.1bn2025-04-01 → 2026-03-31Cons.Income before income taxes
Profit before tax¥3.5bn2024-04-01 → 2025-03-31Cons.Income before income taxes
Net income (owners)¥2.0bn2025-04-01 → 2026-03-31Cons.Profit loss attributable to owners of parent
Net income (owners)¥2.2bn2024-04-01 → 2025-03-31Cons.Profit loss attributable to owners of parent
Net income (owners)¥2.2bn2023-04-01 → 2024-03-31vCons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)¥1.6bn2022-04-01 → 2023-03-31vCons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)¥1.9bn2021-04-01 → 2022-03-31vCons.Profit loss attributable to owners of parent (5-year summary)
Net income¥2.3bn2025-04-01 → 2026-03-31Cons.Profit loss
Net income¥2.6bn2024-04-01 → 2025-03-31Cons.Profit loss
Total assets¥36.1bnat 2026-03-31Cons.Assets
Total assets¥35.4bnat 2025-03-31Cons.Assets
Total assets¥31.5bnat 2024-03-31vCons.Total assets (5-year summary)
Total assets¥29.0bnat 2023-03-31vCons.Total assets (5-year summary)
Total assets¥26.6bnat 2022-03-31vCons.Total assets (5-year summary)
Total liabilities¥10.6bnat 2026-03-31Cons.Liabilities
Total liabilities¥9.8bnat 2025-03-31Cons.Liabilities
Net assets / equity¥25.5bnat 2026-03-31Cons.Net assets
Net assets / equity¥25.5bnat 2025-03-31Cons.Net assets
Net assets / equity¥23.6bnat 2024-03-31vCons.Net assets
Net assets / equity¥22.1bnat 2023-03-31vCons.Net assets (5-year summary)
Net assets / equity¥20.8bnat 2022-03-31vCons.Net assets (5-year summary)
Cash and deposits¥14.2bnat 2026-03-31Cons.Cash and deposits
Cash and deposits¥15.4bnat 2025-03-31Cons.Cash and deposits
Cash & equivalents¥13.7bnat 2026-03-31Cons.Cash and cash equivalents
Cash & equivalents¥15.4bnat 2025-03-31Cons.Cash and cash equivalents
Cash & equivalents¥14.0bnat 2024-03-31vCons.Cash and cash equivalents
Cash & equivalents¥12.8bnat 2023-03-31vCons.Cash and cash equivalents (5-year summary)
Cash & equivalents¥11.9bnat 2022-03-31vCons.Cash and cash equivalents (5-year summary)
Operating cash flow¥2.9bn2025-04-01 → 2026-03-31Cons.Net cash provided by used in operating activities
Operating cash flow¥2.7bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in operating activities
Operating cash flow¥3.0bn2023-04-01 → 2024-03-31vCons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow¥1.9bn2022-04-01 → 2023-03-31vCons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow¥1.1bn2021-04-01 → 2022-03-31vCons.Net cash provided by used in operating activities (5-year summary)
Investing cash flow−¥2.1bn2025-04-01 → 2026-03-31Cons.Net cash provided by used in investment activities
Investing cash flow−¥1.9bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in investment activities
Investing cash flow−¥883m2023-04-01 → 2024-03-31vCons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥551m2022-04-01 → 2023-03-31vCons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow¥432m2021-04-01 → 2022-03-31vCons.Net cash provided by used in investing activities (5-year summary)
Financing cash flow−¥2.4bn2025-04-01 → 2026-03-31Cons.Net cash provided by used in financing activities
Financing cash flow¥553m2024-04-01 → 2025-03-31Cons.Net cash provided by used in financing activities
Financing cash flow−¥998m2023-04-01 → 2024-03-31vCons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow−¥500m2022-04-01 → 2023-03-31vCons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow¥568m2021-04-01 → 2022-03-31vCons.Net cash provided by used in financing activities (5-year summary)
EPS (basic)¥269.582025-04-01 → 2026-03-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥292.412024-04-01 → 2025-03-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥280.512023-04-01 → 2024-03-31vCons.Basic earnings loss per share (5-year summary)
EPS (basic)¥214.782022-04-01 → 2023-03-31vCons.Basic earnings loss per share (5-year summary)
EPS (basic)¥250.582021-04-01 → 2022-03-31vCons.Basic earnings loss per share (5-year summary)
Net assets per share¥3,193.56at 2026-03-31Cons.Net assets per share (5-year summary)
Net assets per share¥3,125.8at 2025-03-31Cons.Net assets per share (5-year summary)
Net assets per share¥2,911.21at 2024-03-31vCons.Net assets per share (5-year summary)
Net assets per share¥2,743.39at 2023-03-31vCons.Net assets per share (5-year summary)
Net assets per share¥2,585.01at 2022-03-31vCons.Net assets per share (5-year summary)
Equity ratio65.8%at 2026-03-31Cons.Equity to asset ratio (5-year summary)
Equity ratio67.8%at 2025-03-31Cons.Equity to asset ratio (5-year summary)
Equity ratio70.7%at 2024-03-31vCons.Equity to asset ratio (5-year summary)
Equity ratio72.4%at 2023-03-31vCons.Equity to asset ratio (5-year summary)
Equity ratio74.5%at 2022-03-31vCons.Equity to asset ratio (5-year summary)
ROE8.5%2025-04-01 → 2026-03-31Cons.Rate of return on equity (5-year summary)
ROE9.7%2024-04-01 → 2025-03-31Cons.Rate of return on equity (5-year summary)
ROE9.9%2023-04-01 → 2024-03-31vCons.Rate of return on equity (5-year summary)
ROE8.1%2022-04-01 → 2023-03-31vCons.Rate of return on equity (5-year summary)
ROE10.4%2021-04-01 → 2022-03-31vCons.Rate of return on equity (5-year summary)
Employees777at 2026-03-31Cons.Number of employees
Employees735at 2025-03-31Cons.Number of employees
Employees663at 2024-03-31vCons.Number of employees
Employees650at 2023-03-31vCons.Number of employees
Employees608at 2022-03-31vCons.Number of employees
Revenue¥16.3bn2025-04-01 → 2026-03-31StandaloneNet sales
Revenue¥15.8bn2024-04-01 → 2025-03-31StandaloneNet sales
Revenue¥15.4bn2023-04-01 → 2024-03-31vStandaloneNet sales (5-year summary)
Revenue¥14.0bn2022-04-01 → 2023-03-31vStandaloneNet sales (5-year summary)
Revenue¥12.9bn2021-04-01 → 2022-03-31vStandaloneNet sales (5-year summary)
Operating income¥1.9bn2025-04-01 → 2026-03-31StandaloneOperating income
Operating income¥2.1bn2024-04-01 → 2025-03-31StandaloneOperating income
Ordinary income¥3.1bn2025-04-01 → 2026-03-31StandaloneOrdinary income
Ordinary income¥2.4bn2024-04-01 → 2025-03-31StandaloneOrdinary income
Ordinary income¥2.3bn2023-04-01 → 2024-03-31vStandaloneOrdinary income loss (5-year summary)
Ordinary income¥1.6bn2022-04-01 → 2023-03-31vStandaloneOrdinary income loss (5-year summary)
Ordinary income¥1.2bn2021-04-01 → 2022-03-31vStandaloneOrdinary income loss (5-year summary)
Profit before tax¥3.1bn2025-04-01 → 2026-03-31StandaloneIncome before income taxes
Profit before tax¥2.2bn2024-04-01 → 2025-03-31StandaloneIncome before income taxes
Net income¥2.6bn2025-04-01 → 2026-03-31StandaloneProfit loss
Net income¥1.6bn2024-04-01 → 2025-03-31StandaloneProfit loss
Net income¥1.6bn2023-04-01 → 2024-03-31vStandaloneNet income loss (5-year summary)
Net income¥1.1bn2022-04-01 → 2023-03-31vStandaloneNet income loss (5-year summary)
Net income¥1.2bn2021-04-01 → 2022-03-31vStandaloneNet income loss (5-year summary)
Total assets¥23.2bnat 2026-03-31StandaloneAssets
Total assets¥22.6bnat 2025-03-31StandaloneAssets
Total assets¥21.1bnat 2024-03-31vStandaloneTotal assets (5-year summary)
Total assets¥20.1bnat 2023-03-31vStandaloneTotal assets (5-year summary)
Total assets¥18.5bnat 2022-03-31vStandaloneTotal assets (5-year summary)
Total liabilities¥3.9bnat 2026-03-31StandaloneLiabilities
Total liabilities¥3.7bnat 2025-03-31StandaloneLiabilities
Net assets / equity¥19.3bnat 2026-03-31StandaloneNet assets
Net assets / equity¥18.9bnat 2025-03-31StandaloneNet assets
Net assets / equity¥18.0bnat 2024-03-31vStandaloneNet assets
Net assets / equity¥17.3bnat 2023-03-31vStandaloneNet assets (5-year summary)
Net assets / equity¥16.7bnat 2022-03-31vStandaloneNet assets (5-year summary)
Cash and deposits¥8.8bnat 2026-03-31StandaloneCash and deposits
Cash and deposits¥8.8bnat 2025-03-31StandaloneCash and deposits
EPS (basic)¥339.092025-04-01 → 2026-03-31StandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥207.172024-04-01 → 2025-03-31StandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥209.112023-04-01 → 2024-03-31vStandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥148.932022-04-01 → 2023-03-31vStandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥158.332021-04-01 → 2022-03-31vStandaloneBasic earnings loss per share (5-year summary)
Dividend per share¥1302025-04-01 → 2026-03-31StandaloneDividend paid per share (5-year summary)
Dividend per share¥1302024-04-01 → 2025-03-31StandaloneDividend paid per share (5-year summary)
Dividend per share¥852023-04-01 → 2024-03-31vStandaloneDividend paid per share (5-year summary)
Dividend per share¥1202022-04-01 → 2023-03-31vStandaloneDividend paid per share (5-year summary)
Dividend per share¥602021-04-01 → 2022-03-31vStandaloneDividend paid per share (5-year summary)
Net assets per share¥2,592.2at 2026-03-31StandaloneNet assets per share (5-year summary)
Net assets per share¥2,461.1at 2025-03-31StandaloneNet assets per share (5-year summary)
Net assets per share¥2,344.3at 2024-03-31vStandaloneNet assets per share (5-year summary)
Net assets per share¥2,261.46at 2023-03-31vStandaloneNet assets per share (5-year summary)
Net assets per share¥2,172.44at 2022-03-31vStandaloneNet assets per share (5-year summary)
Equity ratio83.2%at 2026-03-31StandaloneEquity to asset ratio (5-year summary)
Equity ratio83.7%at 2025-03-31StandaloneEquity to asset ratio (5-year summary)
Equity ratio85.2%at 2024-03-31vStandaloneEquity to asset ratio (5-year summary)
Equity ratio86.2%at 2023-03-31vStandaloneEquity to asset ratio (5-year summary)
Equity ratio89.8%at 2022-03-31vStandaloneEquity to asset ratio (5-year summary)
ROE13.4%2025-04-01 → 2026-03-31StandaloneRate of return on equity (5-year summary)
ROE8.6%2024-04-01 → 2025-03-31StandaloneRate of return on equity (5-year summary)
ROE9.1%2023-04-01 → 2024-03-31vStandaloneRate of return on equity (5-year summary)
ROE6.7%2022-04-01 → 2023-03-31vStandaloneRate of return on equity (5-year summary)
ROE7.4%2021-04-01 → 2022-03-31vStandaloneRate of return on equity (5-year summary)
Shares issued8,656,780at 2026-03-31StandaloneTotal number of issued shares (5-year summary)
Shares issued8,656,780at 2025-03-31StandaloneTotal number of issued shares (5-year summary)
Shares issued8,656,780at 2024-03-31vStandaloneTotal number of issued shares (5-year summary)
Shares issued8,656,780at 2023-03-31vStandaloneTotal number of issued shares (5-year summary)
Shares issued8,656,780at 2022-03-31vStandaloneTotal number of issued shares (5-year summary)
Employees349at 2026-03-31StandaloneNumber of employees
Employees342at 2025-03-31StandaloneNumber of employees
Employees326at 2024-03-31vStandaloneNumber of employees
Employees325at 2023-03-31vStandaloneNumber of employees
Employees321at 2022-03-31vStandaloneNumber of employees

Periods use the dates stated in the filing. d = earlier-year period dated by calendar; v = that date confirmed by the company's own earlier filing.

Segments · 44
SegmentItemPeriodValue
Reconciling Itemsreconcilingdepreciation2025-04-01 → 2026-03-31¥14m
Reconciling Itemsreconcilingsegment assetsat 2026-03-31¥1.4bn
Medical Relatedreportable segmentcapex2025-04-01 → 2026-03-31¥322m
Medical Relatedreportable segmentdepreciation2025-04-01 → 2026-03-31¥157m
Medical Relatedreportable segmentemployeesat 2026-03-31128 pure
Medical Relatedreportable segmentrevenue2025-04-01 → 2026-03-31¥3.0bn
Medical Relatedreportable segmentrevenue external2025-04-01 → 2026-03-31¥3.0bn
Medical Relatedreportable segmentsegment assetsat 2026-03-31¥8.2bn
Medical Relatedreportable segmentsegment profit2025-04-01 → 2026-03-31¥229m
Water Health Carereportable segmentcapex2025-04-01 → 2026-03-31¥276m
Water Health Carereportable segmentdepreciation2025-04-01 → 2026-03-31¥341m
Water Health Carereportable segmentemployeesat 2026-03-31649 pure
Water Health Carereportable segmentrevenue2025-04-01 → 2026-03-31¥21.1bn
Water Health Carereportable segmentrevenue external2025-04-01 → 2026-03-31¥21.1bn
Water Health Carereportable segmentsegment assetsat 2026-03-31¥26.4bn
Water Health Carereportable segmentsegment profit2025-04-01 → 2026-03-31¥2.7bn
—segment totalcapex2025-04-01 → 2026-03-31¥598m
—segment totaldepreciation2025-04-01 → 2026-03-31¥499m
—segment totalrevenue2025-04-01 → 2026-03-31¥24.2bn
—segment totalrevenue external2025-04-01 → 2026-03-31¥24.2bn
—segment totalsegment assetsat 2026-03-31¥34.7bn
—segment totalsegment profit2025-04-01 → 2026-03-31¥2.9bn
Reconciling Itemsreconcilingdepreciation2024-04-01 → 2025-03-31¥15m
Reconciling Itemsreconcilingsegment assetsat 2025-03-31¥1.4bn
Medical Relatedreportable segmentcapex2024-04-01 → 2025-03-31¥710m
Medical Relatedreportable segmentdepreciation2024-04-01 → 2025-03-31¥127m
Medical Relatedreportable segmentrevenue2024-04-01 → 2025-03-31¥2.9bn
Medical Relatedreportable segmentrevenue external2024-04-01 → 2025-03-31¥2.9bn
Medical Relatedreportable segmentsegment assetsat 2025-03-31¥8.0bn
Medical Relatedreportable segmentsegment profit2024-04-01 → 2025-03-31¥390m
Water Health Carereportable segmentcapex2024-04-01 → 2025-03-31¥353m
Water Health Carereportable segmentdepreciation2024-04-01 → 2025-03-31¥329m
Water Health Carereportable segmentrevenue2024-04-01 → 2025-03-31¥19.6bn
Water Health Carereportable segmentrevenue external2024-04-01 → 2025-03-31¥19.6bn
Water Health Carereportable segmentsegment assetsat 2025-03-31¥25.9bn
Water Health Carereportable segmentsegment profit2024-04-01 → 2025-03-31¥2.9bn
—segment totalcapex2024-04-01 → 2025-03-31¥1.1bn
—segment totaldepreciation2024-04-01 → 2025-03-31¥456m
—segment totalrevenue2024-04-01 → 2025-03-31¥22.5bn
—segment totalrevenue external2024-04-01 → 2025-03-31¥22.5bn
—segment totalsegment assetsat 2025-03-31¥33.9bn
—segment totalsegment profit2024-04-01 → 2025-03-31¥3.3bn
Medical Relatedreportable segmentemployeesat 2026-03-314 pure
Water Health Carereportable segmentemployeesat 2026-03-31345 pure

Segment names come from EDINET member IDs; not yet mapped to a common taxonomy.

All source rows · 1,550
ItemContextValueUnit
Independent auditors report consolidated (text)FilingDateInstantText · Plus
Audit firm1 consolidatedFilingDateInstant
Original text (Japanese)有限責任 あずさ監査法人
Cpa1 audit firm1 consolidatedFilingDateInstant
Original text (Japanese)西  野  裕  久
Cpa2 audit firm1 consolidatedFilingDateInstant
Original text (Japanese)杉  田  直  樹
Audit opinion consolidated (text)FilingDateInstantText · Plus
Key audit matters consolidated (text)FilingDateInstantText · Plus
Overview kam consolidated (text)FilingDateInstantText · Plus
Short description kam consolidatedFilingDateInstant_Row1Member
Original text (Japanese)電解水素水整水器の販売に関する売上高の期間帰属の適切性
Description including reason kam consolidated (text)FilingDateInstant_Row1MemberText · Plus
Reference kam consolidatedFilingDateInstant_Row1Member
Original text (Japanese)【注記事項】(連結財務諸表作成のための基本となる重要な事項)4 会計方針に関する事項(5)重要な収益及び費用の計上基準
Auditors response kam consolidated (text)FilingDateInstant_Row1MemberText · Plus
Other information consolidated (text)FilingDateInstantText · Plus
Fee related information consolidated (text)FilingDateInstantText · Plus
Independent auditors report non consolidated (text)FilingDateInstantText · Plus
Audit firm1 non consolidatedFilingDateInstant
Original text (Japanese)有限責任 あずさ監査法人
Cpa1 audit firm1 non consolidatedFilingDateInstant
Original text (Japanese)西  野  裕  久
Cpa2 audit firm1 non consolidatedFilingDateInstant
Original text (Japanese)杉  田  直  樹
Audit opinion non consolidated (text)FilingDateInstantText · Plus
Key audit matters non consolidated (text)FilingDateInstantText · Plus
Overview kam non consolidated (text)FilingDateInstantText · Plus
Short description kam non consolidatedFilingDateInstant_Row1Member
Original text (Japanese)電解水素水整水器の販売に関する売上高の期間帰属の適切性
Same as kam for consolidated fskam non consolidated (text)FilingDateInstant_Row1MemberText · Plus
Other information non consolidated (text)FilingDateInstantText · Plus
Fee related information non consolidated (text)FilingDateInstantText · Plus
Number of submissionFilingDateInstant1
Net sales (5-year summary)Prior4YearDuration16276960000JPY
Net sales (5-year summary)Prior3YearDuration17951681000JPY
Net sales (5-year summary)Prior2YearDuration20414865000JPY
Net sales (5-year summary)Prior1YearDuration22463830000JPY
Net sales (5-year summary)CurrentYearDuration24159363000JPY
Ordinary income loss (5-year summary)Prior4YearDuration2091909000JPY
Ordinary income loss (5-year summary)Prior3YearDuration2515057000JPY
Ordinary income loss (5-year summary)Prior2YearDuration3227183000JPY
Ordinary income loss (5-year summary)Prior1YearDuration3535276000JPY
Ordinary income loss (5-year summary)CurrentYearDuration3147604000JPY
Profit loss attributable to owners of parent (5-year summary)Prior4YearDuration1940910000JPY
Profit loss attributable to owners of parent (5-year summary)Prior3YearDuration1646358000JPY
Profit loss attributable to owners of parent (5-year summary)Prior2YearDuration2150143000JPY
Profit loss attributable to owners of parent (5-year summary)Prior1YearDuration2241402000JPY
Profit loss attributable to owners of parent (5-year summary)CurrentYearDuration2030640000JPY
Comprehensive income (5-year summary)Prior4YearDuration2150786000JPY
Comprehensive income (5-year summary)Prior3YearDuration1820213000JPY
Comprehensive income (5-year summary)Prior2YearDuration2470774000JPY
Comprehensive income (5-year summary)Prior1YearDuration2584501000JPY
Comprehensive income (5-year summary)CurrentYearDuration2195383000JPY
Net assets (5-year summary)Prior4YearInstant20802792000JPY
Net assets (5-year summary)Prior3YearInstant22128622000JPY
Net assets (5-year summary)Prior2YearInstant23627347000JPY
Net assets (5-year summary)Prior1YearInstant25546169000JPY
Net assets (5-year summary)CurrentYearInstant25481633000JPY

Every row of the EDINET CSV. Item names are the XBRL element names; filed text is kept in its original Japanese. Filed text is available on Plus and Pro.

Data checks · 24 of 24 passed
balance sheet identityconsolidated 2025-03-31pass
balance sheet identityconsolidated 2026-03-31pass
balance sheet identitynon_consolidated 2025-03-31pass
balance sheet identitynon_consolidated 2026-03-31pass rounding
dei present pass
period resolution pass
statement vs summary · net assetsconsolidated 2024-03-31pass
statement vs summary · net assetsconsolidated 2025-03-31pass
statement vs summary · net assetsconsolidated 2026-03-31pass
statement vs summary · net assetsnon_consolidated 2024-03-31pass
statement vs summary · net assetsnon_consolidated 2025-03-31pass
statement vs summary · net assetsnon_consolidated 2026-03-31pass
statement vs summary · net income attributable to parentconsolidated 2024-04-01/2025-03-31pass
statement vs summary · net income attributable to parentconsolidated 2025-04-01/2026-03-31pass
statement vs summary · operating cash flowconsolidated 2024-04-01/2025-03-31pass
statement vs summary · operating cash flowconsolidated 2025-04-01/2026-03-31pass
statement vs summary · revenueconsolidated 2024-04-01/2025-03-31pass
statement vs summary · revenueconsolidated 2025-04-01/2026-03-31pass
statement vs summary · revenuenon_consolidated 2024-04-01/2025-03-31pass
statement vs summary · revenuenon_consolidated 2025-04-01/2026-03-31pass
statement vs summary · total assetsconsolidated 2025-03-31pass
statement vs summary · total assetsconsolidated 2026-03-31pass
statement vs summary · total assetsnon_consolidated 2025-03-31pass
statement vs summary · total assetsnon_consolidated 2026-03-31pass