Company Information

- President’s Message
- Management Philosophy
- Company Overview
- List of Executives
- Domestic Group Companies
- International Group Companies
- AISIN Group
- History
- Major Customers
President’s Message
Since our founding, as a specialized piston manufacturer, we have been providing our customers with high-quality, high-performance pistons to ensure that automobile engines—the very heart of vehicles—can deliver their best possible performance.
This achievement is solely the result of our unwavering commitment to our founding philosophy of “precision workmanship and ingenuity.”
Today, the automotive industry is undergoing rapid and significant change. In addition to the shift toward electrification, we are facing increasing pressure to respond swiftly to external factors such as tariffs and geopolitical risks.
To overcome these challenges, we will devote our full efforts to strengthening our competitiveness and creating new value.
Moving forward, we will continue striving to be a company that is trusted and chosen by our customers, contributes to the global environment and local communities through its business activities, and provides a workplace where employees can work with a sense of fulfillment and pride.
We sincerely appreciate your continued guidance and support.

Management Philosophy
AISIN Group Management Philosophy (Link to AISIN Corporation website)
Company Overview
| Company Name | Art Metal Mfg. Co., Ltd. |
| Founded | 1917 |
| Incorporated | Dec. 1945 |
| Capital | 2,397 million yen |
| Representative | Morito Oshita, President and Representative Director |
| Products | Pistons & piston pins (for various internal combustion engines) |
| Net Sales | 25,538 million yen (as of Mar. 2026) |
| Number of Employees | 730 (as of Mar. 31, 2026) |
List of Executives
| President and Representative Director | Morito Oshita |
| Board Member | Hiroshi Ishii |
| Board Member | Hiroaki Nanahara |
| Full-time Auditor | Takayoshi Koike |
| Auditor | Masahiko Morichika |
Domestic Group Companies
| Tateshina Kinzoku Co., Ltd. | 3408 Ashida, Tateshina, Kitasaku-gun, Nagano 384-2305 TEL 0267-56-2228/FAX 0267-56-3321 URL:https://www.aisin.com/jp/group/tateshinametal/ |
| Asama Piston Co., Ltd. | 238 Yawata, Saku, Nagano 384-2106 TEL 0267-58-2011/FAX 0267-58-2010 URL:http://asama-piston.co.jp |
| Tobu Metal Co., Ltd. | 1354 Kazawa, Tomi, Nagano 389-0514 TEL 0268-62-1752/FAX 0268-62-4362 URL:https://www.aisin.com/jp/group/tobu-metal/ |
| Tatekita Co., Ltd. | 405 Yomogida, Saku, Nagano 384-2107 TEL 0267-58-2236/FAX 0267-58-3190 URL:https://www.tatekita.co.jp/ |
| ASC Co., Ltd. | 2-2-43 Tokiwagi, Ueda, Nagano 386-0027 TEL 0268-23-3000/FAX 0268-23-3005 |
International Group Companies
| ART-SERINA PISTON COMPANY LIMITED | 169 Soi Chalongkrung 31, Lamplatiew Ladkrabang Bangkok 10520, Thailand TEL +66-2326-0384/FAX +66-2326-0387 |
| Anqing Art Federal-Mogul Piston Co., Ltd. | No. 317 Yingbin Avenue, Yixiu District, Anqing, Anhui, China TEL +86-556-5345-939/FAX +86-556-5345-243 |
| Binzhou Atai Art Powertrain Components Co., Ltd. | No. 389 Zouhan Road, Binzhou, Shandong, China TEL +86-543-3520027/FAX +86-543-3520666 |
| PT.ART PISTON INDONESIA | Suryacipta City of Industry JL.Surya Kencana Kav I‐M1FGH Kutamekar, CiampelKarawang 41361 Jawa Barat, Indonesia TEL +62-21 2961 4021/FAX +62-267-8637-560 |
AISIN Group
AISIN Group Companies (Link to AISIN Corporation website)
History
| 1917 | Established Art Shokai in Hongo, Tokyo by Ikuzo Sakakibara |
| 1926 | Successfully developed a prototype piston made of light aluminum alloy |
| 1932 | Established Art Light Alloy Foundry and commenced full-scale piston production |
| 1941 | Separated part of the Sales Department to establish Art Piston Co., Ltd., a specialized sales entity |
| 1943 | Evacuated the factory to Tokiwagi, Ueda, Nagano |
| 1945 | Renamed to Art Metal Mfg. Co., Ltd. |
| 1958 | Established Fuji Metal Co., Ltd. to enhance piston and pin business operations |
| 1964 | Established Tateshina Kinzoku Co., Ltd. |
| 1969 | Established Tobu Metal Co., Ltd. |
| 1970 | Established Tatekita Metal Co., Ltd. |
| 1974 | Established Yashima Metal Co., Ltd. (now the Yashima Plant of Tatekita Metal Co., Ltd.) Established Art Serina Piston Co., Ltd. (ASP) as a joint venture in Thailand |
| 1980 | Established the Yamada Plant in Yamada, Ueda |
| 1986 | Established Asama Piston Co., Ltd. in Asashina, Kitasaku-gun |
| 1987 | Merged with Fuji Metal Co., Ltd. |
| 1989 | Established Art Service Center Co., Ltd. (now ASC Co., Ltd.) |
| 1990 | Merged with Art Piston Co., Ltd. |
| 1993 | Established the Shioda Plant and Research & Development Center in Shimonogo, Ueda (within the Ueda Research Park) |
| 1996 | Built the No. 2 Plant at the Shioda Plant |
| 1998 | Acquired ISO 9001 and VDA 6.1 certifications |
| 1999 | Acquired QS-9000 certification |
| 2001 | Acquired ISO 14001 certification |
| 2002 | Established Anqing Art Federal-Mogul Piston Co., Ltd. (AAT) as a joint venture in China |
| 2004 | Acquired ISO/TS 16949 certification |
| 2005 | Established Binzhou Atai Art Powertrain Components Co., Ltd. (BYA) as a joint venture in China Expanded the No. 2 Plant at the Shioda Plant |
| 2011 | Established PT. Art Piston Indonesia (API) as a joint venture in Indonesia Started the mid-to-long-term management plan “Challenge 15” |
| 2012 | Started solar power generation |
| 2016 | Started mid-term management plan “AI20” (ART Innovation 2020) |
| 2017 | Integrated management with AISIN Seiki Co., Ltd. (now AISIN Corporation) Marked 100 years since founding |
| 2018 | Expanded No. 2 Plant for increased production capacity Completed transfer of production lines from Nishio Engine Plant |
| 2020 | Built a new welfare facility at the Headquarters Won the Deming Prize, the world’s top honor for business management |
| 2021 | Started mid-to-long-term management plan “AS30” (Art Strategy 2030) |
| 2023 | Launched a coffee bean cultivation project using an advanced technological greenhouse Started production of “Aluminum Finger Pegs” in partnership with Snow Peak, Inc. |
| 2024 | Began production of heat sinks for semiconductor equipment |
Major Customers
Domestic
- Toyota Motor Corporation
- Suzuki Motor Corporation
- Yamaha Group
- Daihatsu Motor Co., Ltd.
- Mitsubishi Motors Corporation
- Mitsubishi Fuso Truck and Bus Corporation
- Kubota Corporation
- Mazda Motor Corporation
- Isuzu Motors Limited
- Hino Motors, Ltd.
- Toyota Industries Corporation
- Kawasaki Motors, Ltd.
- SUBARU Corporation
- Global Component Technologies Corporation
- Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Tohatsu Marine Corporation
- Perkins Japan
Overseas
- Stellantis / PSA (France)
- Mercury Marine (USA)
- Triumph Motorcycles (UK)
- MV Agusta (Italy)
- Volkswagen (Germany)
