IWATA DENKO Co.,Ltd.

COMPANY

Trade Name	Iwata Denko Co., Ltd.
Representative	Kazuyuki Sakurai
Capital	50 million yen (paid)
Established	April 1943
Incorporated	July 1952
Head office	2F, Hashimoto Building, 29-2, Chuo 6-chome, Ohta-ku, Tokyo 143-0024, Japan TEL: +81-3-6410-6301(rep)+81-3-6410-6272(sales) FAX: +81-3-6410-6304(rep)+81-3-3752-8100(sales)
Directors	Representative Director,President Kazuyuki Sakurai Senior Managing Director Masaki Tsutsumi Director Ken Nakamoto Auditor Katsuya Nakamoto Auditor Kyuichi Nakamura Executive Officer Hiroshi Namamura Executive Officer Atsushi Suzuki Executive Officer Tomohiro Aida Executive Officer Yuta Kajiwara
Employees	202 (as of June 1, 2025)
Products	Proprietary products (retaining rings, belleville springs, wave washers, and the other springs) Bodies made of metal for digital cameras, cellular phones, and smart phones Precision parts and components dedicated to medical equipments, automobiles,motors, lathes, machining centers, CNC

HISTORY

1943	Established in Meguro-ku, Tokyo as Iwata Seisakusyo
1946	Re-launched in Ohta-ku, Tokyo
1952	Incorporated as "Iwata Seisakusyo Co.,Ltd." (Capital: 4 million yen)
1955	Standardized retaining ring and belleville spring
1962	Changed trade name to "Iwata Denko Co.,Ltd."
1963	Yamagata factory was constructed at Kahoku-cho, Nishimurayama-gun, Yamagata
1969	Nagoya office opened at Kariya, Aichi
1985	Akita factory was constructed at Iwaki-machi, Yuri-gun, Akita Murayama office opened at Musashimurayama, Tokyo Capital increased to 285.25 million yen Sendai office opened at Sendai, Miyagi
1991	Founder Riichi Nakamoto was appointed chairman, Takayuki Nakamoto was appointed president
1996	Oita office opened at Kitsuki, Oita
2001	Head office and Yamagata factory aquired ISO9001 certification
2002	Head office and Akita factory aquired ISO9001 certification
2003	Yamagata factory aquired ISO14001 certification
2004	Akita factory aquired ISO14001 certification
2008	The 65th anniversary of establishment was held at Atsumi-onsen, Yamagata
2010	Hiroshi Nakamoto was appointed president
2011	Tohoku office opened at Kahoku-cho, Yamagata (transferred from Sendai office)
2013	Hiroshi Nakamoto was appointed chairman, Kazuyuki Sakurai was appointed president
2014	The capital was reduced to 50 million yen
2014	Head office was moved to 29-2, Chuo 6-chome, Ohta-ku,Tokyo

OFFICE

Office / factory	Address	MAP
Head office Metropolitan Area Sales Department	2F, Hashimoto Building, 29-2, Chuo 6-chome, Ohta-ku, Tokyo 143-0024, Japan TEL:+81-3-6410-6272 FAX:+81-3-3752-8100
Chubu office	5-416, Shinmeicho, Kariya, Aichi 448-0034, Japan TEL:+81-566-21-2471 FAX:+81-566-21-2408
Sales Section 2	267, Kawanoue, Iwakiakahira, Yurihonjo, Akita 018-1215, Japan TEL:+81-184-74-2021 FAX:+81-184-74-2023
Yamagata factory	2311, Shin, Yachi, Kahoku-cho, Nishimurayama-gun, Yamagata 999-3511, Japan TEL:+81-237-72-3211 FAX:+81-237-72-3120
Akita factory	267, Kawanoue, Iwakiakahira, Yurihonjo, Akita 018-1215, Japan TEL:+81-184-74-2021 FAX:+81-184-74-2023

Company Profile