Half-year report · HY

Period2025-04-01 → 2025-09-30
Filed2025-11-04
StandardJapan GAAP
ConsolidatedNo
Data checks12 of 12 passed
Key figures · 48
MetricValuePeriodScopeSource row
Revenue¥5.1bn2025-04-01 → 2025-09-30StandaloneNet sales
Revenue¥10.0bn2024-04-01 → 2025-03-31StandaloneNet sales (5-year summary)
Revenue¥4.9bn2024-04-01 → 2024-09-30StandaloneNet sales
Operating income¥676m2025-04-01 → 2025-09-30StandaloneOperating income
Operating income¥837m2024-04-01 → 2024-09-30StandaloneOperating income
Ordinary income¥675m2025-04-01 → 2025-09-30StandaloneOrdinary income
Ordinary income¥1.5bn2024-04-01 → 2025-03-31StandaloneOrdinary income loss (5-year summary)
Ordinary income¥836m2024-04-01 → 2024-09-30StandaloneOrdinary income
Profit before tax¥675m2025-04-01 → 2025-09-30StandaloneIncome before income taxes
Profit before tax¥836m2024-04-01 → 2024-09-30StandaloneIncome before income taxes
Net income¥512m2025-04-01 → 2025-09-30StandaloneProfit loss
Net income¥1.1bn2024-04-01 → 2025-03-31StandaloneNet income loss (5-year summary)
Net income¥609m2024-04-01 → 2024-09-30StandaloneProfit loss
Total assets¥10.8bnat 2025-09-30StandaloneAssets
Total assets¥11.2bnat 2025-03-31StandaloneAssets
Total assets¥11.4bnat 2024-09-30StandaloneTotal assets (5-year summary)
Total liabilities¥3.2bnat 2025-09-30StandaloneLiabilities
Total liabilities¥3.7bnat 2025-03-31StandaloneLiabilities
Net assets / equity¥7.6bnat 2025-09-30StandaloneNet assets
Net assets / equity¥7.5bnat 2025-03-31StandaloneNet assets
Net assets / equity¥7.3bnat 2024-09-30StandaloneNet assets (5-year summary)
Cash and deposits¥2.3bnat 2025-09-30StandaloneCash and deposits
Cash and deposits¥3.0bnat 2025-03-31StandaloneCash and deposits
Cash & equivalents¥2.3bnat 2025-09-30StandaloneCash and cash equivalents
Cash & equivalents¥3.0bnat 2025-03-31StandaloneCash and cash equivalents
Cash & equivalents¥3.2bnat 2024-09-30StandaloneCash and cash equivalents
Cash & equivalents¥2.7bnat 2024-03-31vStandaloneCash and cash equivalents
Operating cash flow¥213m2025-04-01 → 2025-09-30StandaloneNet cash provided by used in operating activities
Operating cash flow¥1.1bn2024-04-01 → 2025-03-31StandaloneNet cash provided by used in operating activities (5-year summary)
Operating cash flow¥473m2024-04-01 → 2024-09-30StandaloneNet cash provided by used in operating activities
Investing cash flow−¥148m2025-04-01 → 2025-09-30StandaloneNet cash provided by used in investment activities
Investing cash flow−¥168m2024-04-01 → 2025-03-31StandaloneNet cash provided by used in investing activities (5-year summary)
Investing cash flow−¥76m2024-04-01 → 2024-09-30StandaloneNet cash provided by used in investment activities
Financing cash flow−¥750m2025-04-01 → 2025-09-30StandaloneNet cash provided by used in financing activities
Financing cash flow−¥696m2024-04-01 → 2025-03-31StandaloneNet cash provided by used in financing activities (5-year summary)
Financing cash flow¥20m2024-04-01 → 2024-09-30StandaloneNet cash provided by used in financing activities
EPS (basic)¥17.822025-04-01 → 2025-09-30StandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥38.212024-04-01 → 2025-03-31StandaloneBasic earnings loss per share (5-year summary)
EPS (basic)¥21.192024-04-01 → 2024-09-30StandaloneBasic earnings loss per share (5-year summary)
Dividend per share¥92025-04-01 → 2025-09-30StandaloneDividend paid per share (5-year summary)
Dividend per share¥232024-04-01 → 2025-03-31StandaloneDividend paid per share (5-year summary)
Dividend per share¥92024-04-01 → 2024-09-30StandaloneDividend paid per share (5-year summary)
Equity ratio70.1%at 2025-09-30StandaloneEquity to asset ratio (5-year summary)
Equity ratio66.9%at 2025-03-31StandaloneEquity to asset ratio (5-year summary)
Equity ratio63.7%at 2024-09-30StandaloneEquity to asset ratio (5-year summary)
Shares issued31,840,000at 2025-09-30StandaloneTotal number of issued shares (5-year summary)
Shares issued31,840,000at 2025-03-31StandaloneTotal number of issued shares (5-year summary)
Shares issued31,840,000at 2024-09-30StandaloneTotal number of issued shares (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.

All source rows · 401
ItemContextValueUnit
Major shareholders (text)FilingDateInstantText · Plus
Name major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)山田 圭一
Address major shareholdersInterimInstant_No1MajorShareholdersMember
Original text (Japanese)堺市堺区
Name major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)山田 満
Address major shareholdersInterimInstant_No2MajorShareholdersMember
Original text (Japanese)堺市堺区
Name major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)山田 雅之
Address major shareholdersInterimInstant_No3MajorShareholdersMember
Original text (Japanese)東京都世田谷区
Name major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)公益財団法人山田満育英会
Address major shareholdersInterimInstant_No4MajorShareholdersMember
Original text (Japanese)大阪市中央区船越町1丁目6番6号
Name major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)関家 圭三
Address major shareholdersInterimInstant_No5MajorShareholdersMember
Original text (Japanese)東京都港区
Name major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)株式会社日本カストディ銀行(信託口)
Address major shareholdersInterimInstant_No6MajorShareholdersMember
Original text (Japanese)東京都中央区晴海1丁目8-12
Name major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)寺田 恭子
Address major shareholdersInterimInstant_No7MajorShareholdersMember
Original text (Japanese)神戸市須磨区
Name major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)大研医器従業員持株会
Address major shareholdersInterimInstant_No8MajorShareholdersMember
Original text (Japanese)大阪府和泉市あゆみ野2丁目6-2
Name major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)山田 すみれ
Address major shareholdersInterimInstant_No9MajorShareholdersMember
Original text (Japanese)堺市南区
Name major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)磐下 裕司
Address major shareholdersInterimInstant_No10MajorShareholdersMember
Original text (Japanese)愛知県一宮市
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_SharesWithFullVotingRightsTreasurySharesEtcMember-
Description issued shares voting rightsInterimInstant_SharesWithFullVotingRightsOtherMember-
Description issued shares voting rightsInterimInstant_SharesLessThanOneUnitMember
Original text (Japanese)1単元(100株)未満の株式
Treasury shares etc (text)FilingDateInstantText · Plus
Name of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)大研医器株式会社
Address of shareholder treasury shares etcInterimInstant_Row1Member
Original text (Japanese)大阪府和泉市あゆみ野二丁目6番2号
Information about officers (text)FilingDateInstantText · Plus
Regulations in accordance with which financial statements have been prepared financial informationInterimDurationText · Plus
Type1 semi annual financial statements financial informationInterimDurationText · Plus
Note on independent audit financial informationInterimDurationText · Plus
Description of fact that consolidated financial statements have not been prepared financial informationInterimDuration
Original text (Japanese) 当社は、子会社がありませんので、中間連結財務諸表を作成しておりません。
Type1 semi annual balance sheet (text)InterimDurationText · Plus
Type1 semi annual statement of income (text)InterimDurationText · Plus
Type1 semi annual statement of cash flows (text)InterimDurationText · Plus
Notes accounting treatments specific to semi annual financial statements type1 semi annual financial statements (text)InterimDurationText · Plus
Major components of selling general and administrative expenses (text)InterimDuration_NonConsolidatedMemberText · Plus
Reconciliation of ending balance of cash and cash equivalents with account balances per balance sheet (text)InterimDuration_NonConsolidatedMemberText · Plus
Notes regarding dividend (text)Prior1InterimDuration_NonConsolidatedMemberText · Plus
Notes regarding dividend (text)InterimDuration_NonConsolidatedMemberText · Plus
Notes segment information etc type1 semi annual financial statements (text)InterimDurationText · Plus
Description of fact that companys business comprises single segmentInterimDuration_NonConsolidatedMember
Original text (Japanese) 当社の事業は、医療機器等の製造販売及びこれらの付随業務の単一セグメントであるため、記載を省略しております。
Notes revenue recognition semi annual financial statements (text)InterimDurationText · Plus
Notes per share information semi annual financial statements (text)InterimDurationText · Plus
Notes significant events after reporting period semi annual financial statements (text)InterimDurationText · Plus
Other information financial statements etc (text)InterimDurationText · 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 · 12 of 12 passed
balance sheet identitynon_consolidated 2025-03-31pass rounding
balance sheet identitynon_consolidated 2025-09-30pass
dei present pass
period resolution pass
statement vs summary · net assetsnon_consolidated 2025-03-31pass
statement vs summary · net assetsnon_consolidated 2025-09-30pass
statement vs summary · operating cash flownon_consolidated 2024-04-01/2024-09-30pass
statement vs summary · operating cash flownon_consolidated 2025-04-01/2025-09-30pass
statement vs summary · revenuenon_consolidated 2024-04-01/2024-09-30pass
statement vs summary · revenuenon_consolidated 2025-04-01/2025-09-30pass
statement vs summary · total assetsnon_consolidated 2025-03-31pass
statement vs summary · total assetsnon_consolidated 2025-09-30pass