Overview
Electric Appliances

ADTEC PLASMA TECHNOLOGY CO.,LTD.

Adtec Plasma Technology designs, manufactures, and sells high-frequency power supplies for plasma applications and automatic impedance matching units (matching units) used in semiconductor and liquid crystal substrate manufacturing processes. The company also provides measurement instruments and technical services to semiconductor and flat panel display manufacturers. Through its subsidiary株式会社IDX, the group additionally serves research institutions and universities with DC, pulse, microwave, and superconducting magnet power supplies for medical, environmental, and materials science R&D.

Market Cap
¥40.3B
US$257M
EV
¥41.9B
US$267M
Stock¥4,725▼-1.05%
US$1 = ¥156.80 (2026-10-23)
LTM EV/EBITDA
13.3
x
LTM EV/EBIT
16.4
x
LTM PER
19.0
x
LTM PBR
2.6
x
Stock vs TOPIX (1Y, base=100)vs TOPIX ▲+259.4%pt
10012
Oct 24, 25 – Oct 23, 26StockTOPIX
1Mar 5, 26Buying on new technology development expectations
2Oct 13, 26FY8/2026 results: operating profit +41.7%, FY8/2027 guidance 2.1x to ¥5.3bn, dividend raised to ¥50
MC → EV Bridge
40.3BUS$257MMarket Cap11.3BUS$71.8M+ Debt9.42BUS$60.1M− Cash0.27BUS$1.72M− Inv. Sec.0.00BUS$0.02M+ NCI41.9BUS$267MEV
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Performance & Balance
Revenue 5Y (¥B)
12.3US$78.7M'22/812.5US$79.7M'23/811.3US$72.1M'24/812.7US$80.9M'25/813.9US$88.5M'26/8
EBITDA 5Y (¥B)
3.01US$19.2M'22/82.56US$16.4M'23/82.01US$12.8M'24/82.38US$15.2M'25/83.15US$20.1M'26/8
Net Income 5Y (¥B)
2.17US$13.9M'22/81.68US$10.7M'23/81.21US$7.74M'24/82.01US$12.8M'25/82.13US$13.6M'26/8
Capital Structure
58%
42%
EquityD/E 0.73xDebt
Liquidity vs Debt 5Y (¥B)▼ Net Debt
CashInv. Sec.Debt
4.28US$27.3M9.40US$60.0M'22/85.93US$37.8M14.6US$93.2M'23/86.39US$40.7M13.2US$84.3M'24/88.73US$55.7M12.3US$78.4M'25/89.69US$61.8M11.3US$71.8M'26/8
Shareholders
Top 10 hold 50.5%
1
Shuitsu FUJII
22.25%
2
The Master Trust Bank of Japan, Ltd. (Trust Account)
7.63%
3
Custody Bank of Japan, Ltd. (Trust Account)
5.55%
4
BNY GCM CLIENT ACCOUNT JPRD AC ISG (FE-AC; Standing Proxy: MUFG Bank, Ltd.)
3.43%
5
NOMURA PB NOMINEES LIMITED OMNIBUS-MARGIN (CASHPB; Standing Proxy: Nomura Securities Co., Ltd.)
3.08%
6
JP MORGAN CHASE BANK 380802 (Standing Proxy: Mizuho Bank, Ltd.)
2.47%
7
Japan Securities Finance Co.,Ltd.
1.91%
8
MORGAN STANLEY & CO. LLC (Standing Proxy: Morgan Stanley MUFG Securities Co., Ltd.)
1.59%
9
Yoshiaki SHIMANE
1.34%
10
Yoshiki SASAKI
1.29%
Management
8 officers
Hidehiro MORISHITA
Representative Director, President
Feb 1999 Joined the Company Sep 2007 General Manager, Sales Department, the Company Nov 2012 Director, General Manager, Sales Department, the Company Feb 2014 Director, Adtec Technology, Inc. (U.S.) Nov 2017 Managing Director, General Manager, Sales Department, the Company Feb 2018 Director, AD Technology Limited (now ADTEC Plasma Technology Taiwan Ltd.) (current) Feb 2018 Executive Director, SUZHOU CUIZHUO DIANZI LIMITED (now ADTEC Plasma Technology China Ltd.) (current) Nov 2018 Director, IDX Corporation Nov 2018 Representative Director, President, the Company (current) Sep 2019 Director and Chairman, Adtec Technology, Inc. (U.S.) (current) Nov 2021 Representative Director, President, IDX Corporation (current) May 2022 Director, RORZE Corporation (current) Jun 2022 Director, ADTEC Plasma Technology Korea Co., Ltd. (current) Oct 2022 Chairman of the Member Council, ADTEC Plasma Technology Vietnam Co., Ltd. (current) May 2023 Director, Adtec Healthcare Limited (U.K.) (current) Jul 2025 Director, Adtec Europe Limited (U.K.) (current)
1971-10-01
Toshihiro TAKAHARA
Senior Managing Director
Aug 2000 Joined the Company Sep 2005 General Manager, Design Department, the Company Sep 2011 General Manager, Quality Assurance Department, the Company Nov 2012 Director, General Manager, Quality Assurance Department, the Company Sep 2014 Director, Adtec Europe Limited (U.K.) (current) Oct 2014 Director, Adtec Technology, Inc. (U.S.) Apr 2016 Supervisor, SUZHOU CUIZHUO DIANZI LIMITED (now Adtec Plasma Technology China Ltd.) (current) Nov 2016 Director, General Manager, Design Department, the Company Nov 2017 Managing Director, General Manager, Design Department, the Company Nov 2018 Senior Managing Director, the Company (current) Sep 2019 Director and CEO, Adtec Technology, Inc. (U.S.) (current) Nov 2021 Director, IDX Corporation (current) Jun 2022 Director, ADTEC Plasma Technology Korea Co., Ltd. (current) Oct 2022 Vice-Chairman of the Member Council, ADTEC Plasma Technology Vietnam Co., Ltd. (current)
1969-06-28
Hiroki GOTO
Director
Nov 1995 Joined the Company Sep 2006 General Manager, Quality Assurance Department, the Company Sep 2011 General Manager, Design Department, the Company Nov 2012 Director, General Manager, Design Department, the Company Nov 2016 Director, General Manager, Quality Assurance Department, the Company Nov 2018 Director, the Company (current) Nov 2021 Representative Director, Senior Managing Director, IDX Corporation (current)
1961-02-03
Kazuhiro SAKATANI
Director, General Manager, General Affairs and Accounting Department
Apr 1997 Joined The Chugoku Bank, Limited Aug 2001 Seconded to the Company Sep 2004 Returned to The Chugoku Bank, Limited Jul 2018 Joined the Company; General Manager, General Affairs and Accounting Department Nov 2018 Director, General Manager, General Affairs and Accounting Department, the Company (current) Sep 2019 Director and CFO, Adtec Technology, Inc. (U.S.) (current) Nov 2021 Director, IDX Corporation (current) Jun 2022 Director, ADTEC Plasma Technology Korea Co., Ltd. (current) Oct 2022 Member of the Member Council, ADTEC Plasma Technology Vietnam Co., Ltd. (current) Jul 2025 Director, Adtec Europe Limited (U.K.) (current)
1973-11-30
Yoshiyuki FUJISHIRO
Director
Sep 2006 Joined RORZE Corporation May 2013 Senior Managing Director, RORZE Corporation May 2015 Representative Director, President, RORZE Corporation (current) Apr 2017 Representative Director, Chairman, RORZE ROBOTECH CO., LTD. (Vietnam) Nov 2021 Director, the Company (current) Aug 2024 Director, RORZE ROBOTECH CO., LTD. (Vietnam) (current)
1980-03-18
Miyoko FUJII
Director (Audit and Supervisory Committee Member)
Jul 1976 Obtained license as Certified Social Insurance and Labor Consultant Jan 1982 Opened Fujii Miyoko Certified Social Insurance and Labor Consultant Office Apr 2012 Chairman, Labor Insurance Administration Association Eastern Hiroshima Prefecture Labor Promotion Association (current) Nov 2012 Director, Showa Fukushikai Social Welfare Corporation (current) Apr 2023 Director, Fujii Office Social Insurance and Labor Consultants Corporation (current) Nov 2023 Director (Audit and Supervisory Committee Member), the Company (current)
1949-01-23
Hideyuki OKIMOTO
Director (Audit and Supervisory Committee Member)
Dec 2002 Joined the Company Dec 2004 Joined Tanabe Accounting Office, Certified Tax Accountants Corporation Dec 2014 Deputy Director, Tanabe Accounting Office, Certified Tax Accountants Corporation Nov 2021 Director (Audit and Supervisory Committee Member), the Company (current) Feb 2022 Head, Okimoto Administrative Scrivener Office (current) Mar 2022 Representative Director, idea Limited Company (now C2 Limited Company) Jun 2022 Statutory Auditor, Asahicho Co., Ltd. (current) Dec 2022 Representative Partner, Colors Certified Tax Accountants Corporation (current) Jun 2023 Statutory Auditor, Mansei Co., Ltd. (current) Sep 2023 Statutory Auditor, Takanobu Foods Co., Ltd. (current) Feb 2024 Auditor, Senshinkai Medical Corporation (current)
1982-03-04
Tae KANBARA
Director (Audit and Supervisory Committee Member)
Oct 2005 Registered as attorney-at-law Oct 2005 Joined Nakata Kengo Law Office (now Habataki Law Office) Mar 2012 Head, Mitsuba Law Office (current) Nov 2022 Director (Audit and Supervisory Committee Member), the Company (current)
1974-01-30
Large Shareholding Reports
SBI Asset Management Co., Ltd.
2026-10-06
4.56%→2.99%
Asset Management One Co., Ltd.
2026-07-07
5.37%→4.03%
Asset Management One Co., Ltd.
2026-05-12
7.67%→5.37%
SBI Asset Management Co., Ltd.
2026-03-06
4.56%→4.56%
Asset Management One Co., Ltd.
2026-02-20
5.35%→7.67%
Asset Management One Co., Ltd.
2026-02-06
5.35%
SBI Asset Management Co., Ltd.
2025-11-10
4.56%
Disclosures
No disclosures
Primary Source Filings
TDnet
2026-10-09
Full-Year Earnings Flash
FY ending Aug 2026
EDINET
2026-10-06
Large Shareholding Report
TDnet
2026-07-10
Q3 Earnings Flash
FY ending Aug 2026
EDINET
2026-07-07
Large Shareholding Report
EDINET
2026-05-12
Large Shareholding Report
EDINET
2026-04-10
Semi-Annual Securities Report
Period: Sep 2025 – Aug 2026
EDINET
2026-03-06
Large Shareholding Report
EDINET
2026-02-20
Large Shareholding Report
EDINET
2026-02-06
Large Shareholding Report
TDnet
2026-01-09
Q1 Earnings Flash
FY ending Aug 2026
EDINET
2025-11-26
Annual Securities Report
Period: Sep 2024 – Aug 2025
EDINET
2025-11-10
Large Shareholding Report
TDnet
2025-07-11
Q3 Earnings Flash
FY ending Aug 2025
EDINET
2025-04-11
Semi-Annual Securities Report
Period: Sep 2024 – Aug 2025
TDnet
2025-01-10
Q1 Earnings Flash
FY ending Aug 2025
EDINET
2024-11-28
Annual Securities Report
Period: Sep 2023 – Aug 2024
EDINET
2024-07-12
Quarterly Securities Report
Period: Mar 2024 – May 2024
EDINET
2024-04-12
Quarterly Securities Report
Period: Dec 2023 – Feb 2024
EDINET
2024-01-12
Quarterly Securities Report
Period: Sep 2023 – Nov 2023
EDINET
2023-11-29
Annual Securities Report
Period: Sep 2022 – Aug 2023
EDINET
2023-07-14
Quarterly Securities Report
Period: Mar 2023 – May 2023
EDINET
2023-04-14
Quarterly Securities Report
Period: Dec 2022 – Feb 2023
EDINET
2023-01-13
Quarterly Securities Report
Period: Sep 2022 – Nov 2022
EDINET
2022-11-28
Annual Securities Report
EDINET
2022-07-13
Quarterly Securities Report
EDINET
2022-04-13
Quarterly Securities Report
EDINET
2022-01-13
Quarterly Securities Report
EDINET
2021-11-29
Annual Securities Report
EDINET
2021-07-09
Quarterly Securities Report
EDINET
2021-04-09
Quarterly Securities Report
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