Half-year report · HY

Period2025-04-01 → 2025-09-30
Filed2025-11-12
StandardJapan GAAP
ConsolidatedYes
Data checks14 of 14 passed
Key figures · 44
MetricValuePeriodScopeSource row
Revenue¥7.4bn2025-04-01 → 2025-09-30Cons.Net sales
Revenue¥15.1bn2024-04-01 → 2025-03-31Cons.Net sales (5-year summary)
Revenue¥7.3bn2024-04-01 → 2024-09-30Cons.Net sales
Operating income¥864m2025-04-01 → 2025-09-30Cons.Operating income
Operating income¥881m2024-04-01 → 2024-09-30Cons.Operating income
Ordinary income¥918m2025-04-01 → 2025-09-30Cons.Ordinary income
Ordinary income¥2.1bn2024-04-01 → 2025-03-31Cons.Ordinary income loss (5-year summary)
Ordinary income¥925m2024-04-01 → 2024-09-30Cons.Ordinary income
Profit before tax¥916m2025-04-01 → 2025-09-30Cons.Income before income taxes
Profit before tax¥925m2024-04-01 → 2024-09-30Cons.Income before income taxes
Net income (owners)¥622m2025-04-01 → 2025-09-30Cons.Profit loss attributable to owners of parent
Net income (owners)¥1.5bn2024-04-01 → 2025-03-31Cons.Profit loss attributable to owners of parent (5-year summary)
Net income (owners)¥623m2024-04-01 → 2024-09-30Cons.Profit loss attributable to owners of parent
Net income¥627m2025-04-01 → 2025-09-30Cons.Profit loss
Net income¥634m2024-04-01 → 2024-09-30Cons.Profit loss
Total assets¥25.4bnat 2025-09-30Cons.Assets
Total assets¥24.6bnat 2025-03-31Cons.Assets
Total assets¥23.6bnat 2024-09-30Cons.Total assets (5-year summary)
Total liabilities¥5.9bnat 2025-09-30Cons.Liabilities
Total liabilities¥5.9bnat 2025-03-31Cons.Liabilities
Net assets / equity¥19.5bnat 2025-09-30Cons.Net assets
Net assets / equity¥18.7bnat 2025-03-31Cons.Net assets
Net assets / equity¥18.1bnat 2024-09-30Cons.Net assets (5-year summary)
Cash and deposits¥10.8bnat 2025-09-30Cons.Cash and deposits
Cash and deposits¥10.6bnat 2025-03-31Cons.Cash and deposits
Cash & equivalents¥5.7bnat 2025-09-30Cons.Cash and cash equivalents
Cash & equivalents¥5.9bnat 2025-03-31Cons.Cash and cash equivalents
Cash & equivalents¥9.0bnat 2024-09-30Cons.Cash and cash equivalents
Cash & equivalents¥9.8bnat 2024-03-31vCons.Cash and cash equivalents
Operating cash flow¥1.2bn2025-04-01 → 2025-09-30Cons.Net cash provided by used in operating activities
Operating cash flow¥2.2bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in operating activities (5-year summary)
Operating cash flow¥976m2024-04-01 → 2024-09-30Cons.Net cash provided by used in operating activities
Investing cash flow−¥1.0bn2025-04-01 → 2025-09-30Cons.Net cash provided by used in investment activities
Investing cash flow−¥5.3bn2024-04-01 → 2025-03-31Cons.Net cash provided by used in investing activities (5-year summary)
Investing cash flow−¥1.3bn2024-04-01 → 2024-09-30Cons.Net cash provided by used in investment activities
Financing cash flow−¥401m2025-04-01 → 2025-09-30Cons.Net cash provided by used in financing activities
Financing cash flow−¥740m2024-04-01 → 2025-03-31Cons.Net cash provided by used in financing activities (5-year summary)
Financing cash flow−¥412m2024-04-01 → 2024-09-30Cons.Net cash provided by used in financing activities
EPS (basic)¥199.222025-04-01 → 2025-09-30Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥469.182024-04-01 → 2025-03-31Cons.Basic earnings loss per share (5-year summary)
EPS (basic)¥199.72024-04-01 → 2024-09-30Cons.Basic earnings loss per share (5-year summary)
Equity ratio75.5%at 2025-09-30Cons.Equity to asset ratio (5-year summary)
Equity ratio74.9%at 2025-03-31Cons.Equity to asset ratio (5-year summary)
Equity ratio75.2%at 2024-09-30Cons.Equity to asset ratio (5-year summary)

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 · 54
SegmentItemPeriodValue
Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segmentsrevenue2025-04-01 → 2025-09-30¥511m
Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segmentsrevenue external2025-04-01 → 2025-09-30¥511m
Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segmentssegment profit2025-04-01 → 2025-09-30¥60m
Care Welfare Relatedreportable segmentrevenue2025-04-01 → 2025-09-30¥582m
Care Welfare Relatedreportable segmentrevenue external2025-04-01 → 2025-09-30¥582m
Care Welfare Relatedreportable segmentsegment profit2025-04-01 → 2025-09-30¥60,000
Home Medical Treatment Relatedreportable segmentrevenue2025-04-01 → 2025-09-30¥3.6bn
Home Medical Treatment Relatedreportable segmentrevenue external2025-04-01 → 2025-09-30¥3.6bn
Home Medical Treatment Relatedreportable segmentsegment profit2025-04-01 → 2025-09-30¥431m
Medical Gas Equipment Installation Relatedreportable segmentrevenue2025-04-01 → 2025-09-30¥651m
Medical Gas Equipment Installation Relatedreportable segmentrevenue external2025-04-01 → 2025-09-30¥614m
Medical Gas Equipment Installation Relatedreportable segmentrevenue intersegment2025-04-01 → 2025-09-30¥37m
Medical Gas Equipment Installation Relatedreportable segmentsegment profit2025-04-01 → 2025-09-30¥92m
Medical Gas Relatedreportable segmentrevenue2025-04-01 → 2025-09-30¥1.9bn
Medical Gas Relatedreportable segmentrevenue external2025-04-01 → 2025-09-30¥1.9bn
Medical Gas Relatedreportable segmentsegment profit2025-04-01 → 2025-09-30¥283m
Nursing Homereportable segmentrevenue2025-04-01 → 2025-09-30¥176m
Nursing Homereportable segmentrevenue external2025-04-01 → 2025-09-30¥176m
Nursing Homereportable segmentsegment profit2025-04-01 → 2025-09-30−¥2m
—segment totalrevenue2025-04-01 → 2025-09-30¥6.9bn
—segment totalrevenue external2025-04-01 → 2025-09-30¥6.9bn
—segment totalrevenue intersegment2025-04-01 → 2025-09-30¥37m
—segment totalsegment profit2025-04-01 → 2025-09-30¥804m
Total Of Reportable Segments And Otherssegment totalrevenue2025-04-01 → 2025-09-30¥7.4bn
Total Of Reportable Segments And Otherssegment totalrevenue external2025-04-01 → 2025-09-30¥7.4bn
Total Of Reportable Segments And Otherssegment totalrevenue intersegment2025-04-01 → 2025-09-30¥37m
Total Of Reportable Segments And Otherssegment totalsegment profit2025-04-01 → 2025-09-30¥864m
Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segmentsrevenue2024-04-01 → 2024-09-30¥490m
Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segmentsrevenue external2024-04-01 → 2024-09-30¥490m
Operating Segments Not Included In Reportable Segments And Other Revenue Generating Business Activitiesother segmentssegment profit2024-04-01 → 2024-09-30¥62m
Care Welfare Relatedreportable segmentrevenue2024-04-01 → 2024-09-30¥581m
Care Welfare Relatedreportable segmentrevenue external2024-04-01 → 2024-09-30¥581m
Care Welfare Relatedreportable segmentsegment profit2024-04-01 → 2024-09-30¥20m
Home Medical Treatment Relatedreportable segmentrevenue2024-04-01 → 2024-09-30¥3.3bn
Home Medical Treatment Relatedreportable segmentrevenue external2024-04-01 → 2024-09-30¥3.3bn
Home Medical Treatment Relatedreportable segmentsegment profit2024-04-01 → 2024-09-30¥400m
Medical Gas Equipment Installation Relatedreportable segmentrevenue2024-04-01 → 2024-09-30¥850m
Medical Gas Equipment Installation Relatedreportable segmentrevenue external2024-04-01 → 2024-09-30¥806m
Medical Gas Equipment Installation Relatedreportable segmentrevenue intersegment2024-04-01 → 2024-09-30¥44m
Medical Gas Equipment Installation Relatedreportable segmentsegment profit2024-04-01 → 2024-09-30¥107m
Medical Gas Relatedreportable segmentrevenue2024-04-01 → 2024-09-30¥1.9bn
Medical Gas Relatedreportable segmentrevenue external2024-04-01 → 2024-09-30¥1.9bn
Medical Gas Relatedreportable segmentsegment profit2024-04-01 → 2024-09-30¥291m
Nursing Homereportable segmentrevenue2024-04-01 → 2024-09-30¥174m
Nursing Homereportable segmentrevenue external2024-04-01 → 2024-09-30¥174m
Nursing Homereportable segmentsegment profit2024-04-01 → 2024-09-30¥783,000
—segment totalrevenue2024-04-01 → 2024-09-30¥6.8bn
—segment totalrevenue external2024-04-01 → 2024-09-30¥6.8bn
—segment totalrevenue intersegment2024-04-01 → 2024-09-30¥44m
—segment totalsegment profit2024-04-01 → 2024-09-30¥819m
Total Of Reportable Segments And Otherssegment totalrevenue2024-04-01 → 2024-09-30¥7.3bn
Total Of Reportable Segments And Otherssegment totalrevenue external2024-04-01 → 2024-09-30¥7.3bn
Total Of Reportable Segments And Otherssegment totalrevenue intersegment2024-04-01 → 2024-09-30¥44m
Total Of Reportable Segments And Otherssegment totalsegment profit2024-04-01 → 2024-09-30¥881m

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

All source rows · 500
ItemContextValueUnit
Name major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)星   幸 男
Address major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)埼玉県川口市
Name major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)星   孝 子
Address major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)東京都港区
Name major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)星   昌 成
Address major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)東京都千代田区
Name major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)星医療酸器従業員持株会
Address major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)東京都足立区入谷七丁目11番18号
Name major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)小池酸素工業株式会社
Address major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)東京都墨田区太平三丁目4番8号
Name major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)星   昌 浩
Address major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)埼玉県川口市
Issued shares voting rights (text)FilingDateInstantText · Plus
Description issued shares voting rightsInterimInstant_SharesWithNoVotingRightsMember-
Description issued shares voting rightsInterimInstant_SharesWithRestrictedVotingRightsTreasurySharesEtcMember-
Description issued shares voting rightsInterimInstant_SharesWithRestrictedVotingRightsOtherMember-
Description issued shares voting rightsInterimInstant_OrdinarySharesTreasurySharesSharesWithFullVotingRightsTreasurySharesEtcMember
Original text (Japanese)株主としての権利内容に制限のない、標準となる株式
Description issued shares voting rightsInterimInstant_OrdinarySharesSharesWithFullVotingRightsOtherMember
Original text (Japanese)同上
Description issued shares voting rightsInterimInstant_OrdinarySharesSharesLessThanOneUnitMember
Original text (Japanese)同上
Treasury shares etc (text)FilingDateInstantText · Plus
Name of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)株式会社星医療酸器
Address of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)東京都足立区入谷七丁目11番18号
Information about officers (text)FilingDateInstantText · Plus
Regulations in accordance with which consolidated financial statements have been prepared financial informationInterimDurationText · Plus
Type1 semi annual consolidated financial statements financial informationInterimDurationText · Plus
Note on independent audit financial informationInterimDurationText · Plus
Type1 semi annual consolidated balance sheet (text)InterimDurationText · Plus
Type1 semi annual consolidated statement of income (text)InterimDurationText · Plus
Type1 semi annual consolidated statement of comprehensive income (text)InterimDurationText · Plus
Type1 semi annual consolidated statement of cash flows (text)InterimDurationText · Plus
Notes uncertainties of entitys ability to continue as going concern semi annual consolidated financial statements (text)InterimDurationText · Plus
Notes accounting treatments specific to semi annual financial statements type1 semi annual consolidated financial statements (text)InterimDurationText · Plus
Notes additional information semi annual consolidated financial statements (text)InterimDurationText · Plus
Notes regarding inventories (text)InterimInstantText · Plus
Major components of selling general and administrative expenses (text)InterimDurationText · Plus
Reconciliation of ending balance of cash and cash equivalents with account balances per balance sheet (text)InterimDurationText · Plus
Notes regarding dividend (text)Prior1InterimDurationText · Plus
Notes regarding dividend (text)InterimDurationText · Plus
Notes segment information etc type1 semi annual consolidated financial statements (text)InterimDurationText · Plus
Footnotes regarding segment information table (text)Prior1InterimDurationText · Plus
Description of nature of differences between profit loss of reportable segments total and semi annual financial statements (text)Prior1InterimDurationText · Plus
Information about impairment loss of non current assets or goodwill etc for each reportable segment (text)Prior1InterimDurationText · Plus
Footnotes regarding segment information table (text)InterimDurationText · Plus
Description of nature of differences between profit loss of reportable segments total and semi annual financial statements (text)InterimDurationText · Plus
Information about impairment loss of non current assets or goodwill etc for each reportable segment (text)InterimDurationText · Plus
Notes revenue recognition semi annual consolidated financial statements (text)InterimDurationText · Plus
Notes per share information semi annual consolidated financial statements (text)InterimDurationText · Plus
Notes significant events after reporting period semi annual consolidated financial statements (text)InterimDurationText · Plus
Other information consolidated financial statements etc (text)InterimDurationText · Plus
Information about company which provides guarantee to reporting company (text)FilingDateInstantText · Plus

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 · 14 of 14 passed
balance sheet identityconsolidated 2025-03-31pass rounding
balance sheet identityconsolidated 2025-09-30pass rounding
dei present pass
period resolution pass
statement vs summary · net assetsconsolidated 2025-03-31pass
statement vs summary · net assetsconsolidated 2025-09-30pass
statement vs summary · net income attributable to parentconsolidated 2024-04-01/2024-09-30pass
statement vs summary · net income attributable to parentconsolidated 2025-04-01/2025-09-30pass
statement vs summary · operating cash flowconsolidated 2024-04-01/2024-09-30pass
statement vs summary · operating cash flowconsolidated 2025-04-01/2025-09-30pass
statement vs summary · revenueconsolidated 2024-04-01/2024-09-30pass
statement vs summary · revenueconsolidated 2025-04-01/2025-09-30pass
statement vs summary · total assetsconsolidated 2025-03-31pass
statement vs summary · total assetsconsolidated 2025-09-30pass