Annual report

Period2025-01-01 → 2025-12-31

Filed2026-03-23

StandardJapan GAAP

ConsolidatedYes

Data checks24 of 24 passed

Key figures · 133

Metric	Value	Period	Scope	Source row
Revenue	¥388m	2025-01-01 → 2025-12-31	Cons.	Net sales
Revenue	¥472m	2024-01-01 → 2024-12-31	Cons.	Net sales
Revenue	¥428m	2023-01-01 → 2023-12-31^v	Cons.	Net sales (5-year summary)
Revenue	¥448m	2022-01-01 → 2022-12-31^v	Cons.	Net sales (5-year summary)
Revenue	¥414m	2021-01-01 → 2021-12-31^d	Cons.	Net sales (5-year summary)
Operating income	−¥620m	2025-01-01 → 2025-12-31	Cons.	Operating income
Operating income	−¥1.2bn	2024-01-01 → 2024-12-31	Cons.	Operating income
Ordinary income	−¥630m	2025-01-01 → 2025-12-31	Cons.	Ordinary income
Ordinary income	−¥1.2bn	2024-01-01 → 2024-12-31	Cons.	Ordinary income
Ordinary income	−¥796m	2023-01-01 → 2023-12-31^v	Cons.	Ordinary income loss (5-year summary)
Ordinary income	−¥296m	2022-01-01 → 2022-12-31^v	Cons.	Ordinary income loss (5-year summary)
Ordinary income	−¥160m	2021-01-01 → 2021-12-31^d	Cons.	Ordinary income loss (5-year summary)
Profit before tax	−¥630m	2025-01-01 → 2025-12-31	Cons.	Income before income taxes
Profit before tax	−¥1.3bn	2024-01-01 → 2024-12-31	Cons.	Income before income taxes
Net income (owners)	−¥632m	2025-01-01 → 2025-12-31	Cons.	Profit loss attributable to owners of parent
Net income (owners)	−¥1.3bn	2024-01-01 → 2024-12-31	Cons.	Profit loss attributable to owners of parent
Net income (owners)	−¥812m	2023-01-01 → 2023-12-31^v	Cons.	Profit loss attributable to owners of parent (5-year summary)
Net income (owners)	−¥430m	2022-01-01 → 2022-12-31^v	Cons.	Profit loss attributable to owners of parent (5-year summary)
Net income (owners)	−¥149m	2021-01-01 → 2021-12-31^d	Cons.	Profit loss attributable to owners of parent (5-year summary)
Net income	−¥632m	2025-01-01 → 2025-12-31	Cons.	Profit loss
Net income	−¥1.3bn	2024-01-01 → 2024-12-31	Cons.	Profit loss
Total assets	¥2.2bn	at 2025-12-31	Cons.	Assets
Total assets	¥1.7bn	at 2024-12-31	Cons.	Assets
Total assets	¥2.4bn	at 2023-12-31^v	Cons.	Total assets (5-year summary)
Total assets	¥3.0bn	at 2022-12-31^v	Cons.	Total assets (5-year summary)
Total assets	¥2.5bn	at 2021-12-31^d	Cons.	Total assets (5-year summary)
Total liabilities	¥734m	at 2025-12-31	Cons.	Liabilities
Total liabilities	¥936m	at 2024-12-31	Cons.	Liabilities
Net assets / equity	¥1.4bn	at 2025-12-31	Cons.	Net assets
Net assets / equity	¥734m	at 2024-12-31	Cons.	Net assets
Net assets / equity	¥1.3bn	at 2023-12-31^v	Cons.	Net assets
Net assets / equity	¥1.9bn	at 2022-12-31^v	Cons.	Net assets (5-year summary)
Net assets / equity	¥2.0bn	at 2021-12-31^d	Cons.	Net assets (5-year summary)
Cash and deposits	¥1.7bn	at 2025-12-31	Cons.	Cash and deposits
Cash and deposits	¥1.1bn	at 2024-12-31	Cons.	Cash and deposits
Cash & equivalents	¥1.7bn	at 2025-12-31	Cons.	Cash and cash equivalents
Cash & equivalents	¥1.1bn	at 2024-12-31	Cons.	Cash and cash equivalents
Cash & equivalents	¥1.9bn	at 2023-12-31^v	Cons.	Cash and cash equivalents
Cash & equivalents	¥2.3bn	at 2022-12-31^v	Cons.	Cash and cash equivalents (5-year summary)
Cash & equivalents	¥1.9bn	at 2021-12-31^d	Cons.	Cash and cash equivalents (5-year summary)
Operating cash flow	−¥494m	2025-01-01 → 2025-12-31	Cons.	Net cash provided by used in operating activities
Operating cash flow	−¥1.3bn	2024-01-01 → 2024-12-31	Cons.	Net cash provided by used in operating activities
Operating cash flow	−¥587m	2023-01-01 → 2023-12-31^v	Cons.	Net cash provided by used in operating activities (5-year summary)
Operating cash flow	−¥355m	2022-01-01 → 2022-12-31^v	Cons.	Net cash provided by used in operating activities (5-year summary)
Operating cash flow	−¥176m	2021-01-01 → 2021-12-31^d	Cons.	Net cash provided by used in operating activities (5-year summary)
Investing cash flow	−¥2m	2025-01-01 → 2025-12-31	Cons.	Net cash provided by used in investment activities
Investing cash flow	−¥10m	2024-01-01 → 2024-12-31	Cons.	Net cash provided by used in investment activities
Investing cash flow	−¥15m	2023-01-01 → 2023-12-31^v	Cons.	Net cash provided by used in investing activities (5-year summary)
Investing cash flow	−¥140m	2022-01-01 → 2022-12-31^v	Cons.	Net cash provided by used in investing activities (5-year summary)
Investing cash flow	−¥111m	2021-01-01 → 2021-12-31^d	Cons.	Net cash provided by used in investing activities (5-year summary)
Financing cash flow	¥1.1bn	2025-01-01 → 2025-12-31	Cons.	Net cash provided by used in financing activities
Financing cash flow	¥568m	2024-01-01 → 2024-12-31	Cons.	Net cash provided by used in financing activities
Financing cash flow	¥134m	2023-01-01 → 2023-12-31^v	Cons.	Net cash provided by used in financing activities (5-year summary)
Financing cash flow	¥867m	2022-01-01 → 2022-12-31^v	Cons.	Net cash provided by used in financing activities (5-year summary)
Financing cash flow	−¥104m	2021-01-01 → 2021-12-31^d	Cons.	Net cash provided by used in financing activities (5-year summary)
EPS (basic)	¥-13.19	2025-01-01 → 2025-12-31	Cons.	Basic earnings loss per share (5-year summary)
EPS (basic)	¥-36.74	2024-01-01 → 2024-12-31	Cons.	Basic earnings loss per share (5-year summary)
EPS (basic)	¥-25.56	2023-01-01 → 2023-12-31^v	Cons.	Basic earnings loss per share (5-year summary)
EPS (basic)	¥-14.5	2022-01-01 → 2022-12-31^v	Cons.	Basic earnings loss per share (5-year summary)
EPS (basic)	¥-5.08	2021-01-01 → 2021-12-31^d	Cons.	Basic earnings loss per share (5-year summary)
Net assets per share	¥26.44	at 2025-12-31	Cons.	Net assets per share (5-year summary)
Net assets per share	¥17.59	at 2024-12-31	Cons.	Net assets per share (5-year summary)
Net assets per share	¥39.81	at 2023-12-31^v	Cons.	Net assets per share (5-year summary)
Net assets per share	¥60.14	at 2022-12-31^v	Cons.	Net assets per share (5-year summary)
Net assets per share	¥68.27	at 2021-12-31^d	Cons.	Net assets per share (5-year summary)
Equity ratio	66.1%	at 2025-12-31	Cons.	Equity to asset ratio (5-year summary)
Equity ratio	43.9%	at 2024-12-31	Cons.	Equity to asset ratio (5-year summary)
Equity ratio	53.9%	at 2023-12-31^v	Cons.	Equity to asset ratio (5-year summary)
Equity ratio	62.8%	at 2022-12-31^v	Cons.	Equity to asset ratio (5-year summary)
Equity ratio	81.4%	at 2021-12-31^d	Cons.	Equity to asset ratio (5-year summary)
Employees	19	at 2025-12-31	Cons.	Number of employees
Employees	21	at 2024-12-31	Cons.	Number of employees
Employees	21	at 2023-12-31^v	Cons.	Number of employees
Employees	20	at 2022-12-31^v	Cons.	Number of employees
Employees	19	at 2021-12-31^d	Cons.	Number of employees
Revenue	¥388m	2025-01-01 → 2025-12-31	Standalone	Net sales
Revenue	¥470m	2024-01-01 → 2024-12-31	Standalone	Net sales
Revenue	¥428m	2023-01-01 → 2023-12-31^v	Standalone	Net sales (5-year summary)
Revenue	¥412m	2022-01-01 → 2022-12-31^v	Standalone	Net sales (5-year summary)
Revenue	¥412m	2021-01-01 → 2021-12-31^d	Standalone	Net sales (5-year summary)
Operating income	−¥567m	2025-01-01 → 2025-12-31	Standalone	Operating income
Operating income	−¥1.2bn	2024-01-01 → 2024-12-31	Standalone	Operating income
Ordinary income	−¥571m	2025-01-01 → 2025-12-31	Standalone	Ordinary income
Ordinary income	−¥1.2bn	2024-01-01 → 2024-12-31	Standalone	Ordinary income
Ordinary income	−¥729m	2023-01-01 → 2023-12-31^v	Standalone	Ordinary income loss (5-year summary)
Ordinary income	−¥241m	2022-01-01 → 2022-12-31^v	Standalone	Ordinary income loss (5-year summary)
Ordinary income	−¥39m	2021-01-01 → 2021-12-31^d	Standalone	Ordinary income loss (5-year summary)
Profit before tax	−¥621m	2025-01-01 → 2025-12-31	Standalone	Income before income taxes
Profit before tax	−¥1.3bn	2024-01-01 → 2024-12-31	Standalone	Income before income taxes
Net income	−¥622m	2025-01-01 → 2025-12-31	Standalone	Profit loss
Net income	−¥1.3bn	2024-01-01 → 2024-12-31	Standalone	Profit loss
Net income	−¥853m	2023-01-01 → 2023-12-31^v	Standalone	Net income loss (5-year summary)
Net income	−¥387m	2022-01-01 → 2022-12-31^v	Standalone	Net income loss (5-year summary)
Net income	−¥241m	2021-01-01 → 2021-12-31^d	Standalone	Net income loss (5-year summary)
Total assets	¥2.1bn	at 2025-12-31	Standalone	Assets
Total assets	¥1.6bn	at 2024-12-31	Standalone	Assets
Total assets	¥2.4bn	at 2023-12-31^v	Standalone	Total assets (5-year summary)
Total assets	¥3.0bn	at 2022-12-31^v	Standalone	Total assets (5-year summary)
Total assets	¥2.4bn	at 2021-12-31^d	Standalone	Total assets (5-year summary)
Total liabilities	¥731m	at 2025-12-31	Standalone	Liabilities
Total liabilities	¥929m	at 2024-12-31	Standalone	Liabilities
Net assets / equity	¥1.4bn	at 2025-12-31	Standalone	Net assets
Net assets / equity	¥686m	at 2024-12-31	Standalone	Net assets
Net assets / equity	¥1.3bn	at 2023-12-31^v	Standalone	Net assets
Net assets / equity	¥1.9bn	at 2022-12-31^v	Standalone	Net assets (5-year summary)
Net assets / equity	¥2.0bn	at 2021-12-31^d	Standalone	Net assets (5-year summary)
Cash and deposits	¥1.7bn	at 2025-12-31	Standalone	Cash and deposits
Cash and deposits	¥1.1bn	at 2024-12-31	Standalone	Cash and deposits
EPS (basic)	¥-12.99	2025-01-01 → 2025-12-31	Standalone	Basic earnings loss per share (5-year summary)
EPS (basic)	¥-38.15	2024-01-01 → 2024-12-31	Standalone	Basic earnings loss per share (5-year summary)
EPS (basic)	¥-26.85	2023-01-01 → 2023-12-31^v	Standalone	Basic earnings loss per share (5-year summary)
EPS (basic)	¥-13.05	2022-01-01 → 2022-12-31^v	Standalone	Basic earnings loss per share (5-year summary)
EPS (basic)	¥-8.21	2021-01-01 → 2021-12-31^d	Standalone	Basic earnings loss per share (5-year summary)
Net assets per share	¥25.75	at 2025-12-31	Standalone	Net assets per share (5-year summary)
Net assets per share	¥16.45	at 2024-12-31	Standalone	Net assets per share (5-year summary)
Net assets per share	¥39.88	at 2023-12-31^v	Standalone	Net assets per share (5-year summary)
Net assets per share	¥61.53	at 2022-12-31^v	Standalone	Net assets per share (5-year summary)
Net assets per share	¥68.27	at 2021-12-31^d	Standalone	Net assets per share (5-year summary)
Equity ratio	65.6%	at 2025-12-31	Standalone	Equity to asset ratio (5-year summary)
Equity ratio	42.4%	at 2024-12-31	Standalone	Equity to asset ratio (5-year summary)
Equity ratio	54.0%	at 2023-12-31^v	Standalone	Equity to asset ratio (5-year summary)
Equity ratio	63.9%	at 2022-12-31^v	Standalone	Equity to asset ratio (5-year summary)
Equity ratio	82.6%	at 2021-12-31^d	Standalone	Equity to asset ratio (5-year summary)
Shares issued	54,251,712	at 2025-12-31	Standalone	Total number of issued shares (5-year summary)
Shares issued	41,625,512	at 2024-12-31	Standalone	Total number of issued shares (5-year summary)
Shares issued	32,128,012	at 2023-12-31^v	Standalone	Total number of issued shares (5-year summary)
Shares issued	30,871,138	at 2022-12-31^v	Standalone	Total number of issued shares (5-year summary)
Shares issued	29,358,600	at 2021-12-31^d	Standalone	Total number of issued shares (5-year summary)
Employees	19	at 2025-12-31	Standalone	Number of employees
Employees	19	at 2024-12-31	Standalone	Number of employees
Employees	19	at 2023-12-31^v	Standalone	Number of employees
Employees	17	at 2022-12-31^v	Standalone	Number of employees
Employees	16	at 2021-12-31^d	Standalone	Number 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.

All source rows · 1,191

Item	Context	Value	Unit
Current portion of long term loans payable	CurrentYearInstant	99048000	JPY
Accounts payable other	Prior1YearInstant	84904000	JPY
Accounts payable other	CurrentYearInstant	66380000	JPY
Income taxes payable	Prior1YearInstant	14876000	JPY
Income taxes payable	CurrentYearInstant	618000	JPY
Other cl	Prior1YearInstant	13818000	JPY
Other cl	CurrentYearInstant	37835000	JPY
Current liabilities	Prior1YearInstant	132646000	JPY
Current liabilities	CurrentYearInstant	203882000	JPY
Long term loans payable	Prior1YearInstant	476428000	JPY
Long term loans payable	CurrentYearInstant	506130000	JPY
Bonds payable	Prior1YearInstant	302500000	JPY
Bonds payable	CurrentYearInstant	－	JPY
Other ncl	Prior1YearInstant	24000000	JPY
Other ncl	CurrentYearInstant	24000000	JPY
Noncurrent liabilities	Prior1YearInstant	802928000	JPY
Noncurrent liabilities	CurrentYearInstant	530130000	JPY
Liabilities	Prior1YearInstant	935574000	JPY
Liabilities	CurrentYearInstant	734012000	JPY
Capital stock	Prior1YearInstant	1203277000	JPY
Capital stock	CurrentYearInstant	697340000	JPY
Capital surplus	Prior1YearInstant	3261516000	JPY
Capital surplus	CurrentYearInstant	1280933000	JPY
Retained earnings	Prior1YearInstant	-3732678000	JPY
Retained earnings	CurrentYearInstant	-543564000	JPY
Treasury stock	Prior1YearInstant	-0	JPY
Treasury stock	CurrentYearInstant	-0	JPY
Shareholders equity	Prior1YearInstant	732115000	JPY
Shareholders equity	CurrentYearInstant	1434709000	JPY
Valuation difference on available for sale securities	Prior1YearInstant	-34000	JPY
Valuation difference on available for sale securities	CurrentYearInstant	-34000	JPY
Valuation and translation adjustments	Prior1YearInstant	-34000	JPY
Valuation and translation adjustments	CurrentYearInstant	-34000	JPY
Subscription rights to shares	Prior1YearInstant	1788000	JPY
Subscription rights to shares	CurrentYearInstant	774000	JPY
Net assets	Prior1YearInstant	733869000	JPY
Net assets	CurrentYearInstant	1435449000	JPY
Liabilities and net assets	Prior1YearInstant	1669444000	JPY
Liabilities and net assets	CurrentYearInstant	2169461000	JPY
Net sales	Prior1YearDuration	471580000	JPY
Net sales	CurrentYearDuration	387620000	JPY
Cost of sales	Prior1YearDuration	46843000	JPY
Cost of sales	CurrentYearDuration	38860000	JPY
Gross profit	Prior1YearDuration	424736000	JPY
Gross profit	CurrentYearDuration	348760000	JPY
Research and development expenses sga	Prior1YearDuration	1367769000	JPY
Research and development expenses sga	CurrentYearDuration	669775000	JPY
Other sga	Prior1YearDuration	266565000	JPY
Other sga	CurrentYearDuration	298855000	JPY
Selling general and administrative expenses	Prior1YearDuration	1634335000	JPY

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 identity	consolidated 2024-12-31	pass rounding
balance sheet identity	consolidated 2025-12-31	pass
balance sheet identity	non_consolidated 2024-12-31	pass rounding
balance sheet identity	non_consolidated 2025-12-31	pass rounding
dei present		pass
period resolution		pass
statement vs summary · net assets	consolidated 2023-12-31	pass
statement vs summary · net assets	consolidated 2024-12-31	pass
statement vs summary · net assets	consolidated 2025-12-31	pass
statement vs summary · net assets	non_consolidated 2023-12-31	pass
statement vs summary · net assets	non_consolidated 2024-12-31	pass
statement vs summary · net assets	non_consolidated 2025-12-31	pass
statement vs summary · net income attributable to parent	consolidated 2024-01-01/2024-12-31	pass
statement vs summary · net income attributable to parent	consolidated 2025-01-01/2025-12-31	pass
statement vs summary · operating cash flow	consolidated 2024-01-01/2024-12-31	pass
statement vs summary · operating cash flow	consolidated 2025-01-01/2025-12-31	pass
statement vs summary · revenue	consolidated 2024-01-01/2024-12-31	pass
statement vs summary · revenue	consolidated 2025-01-01/2025-12-31	pass
statement vs summary · revenue	non_consolidated 2024-01-01/2024-12-31	pass
statement vs summary · revenue	non_consolidated 2025-01-01/2025-12-31	pass
statement vs summary · total assets	consolidated 2024-12-31	pass
statement vs summary · total assets	consolidated 2025-12-31	pass
statement vs summary · total assets	non_consolidated 2024-12-31	pass
statement vs summary · total assets	non_consolidated 2025-12-31	pass