Mitsunami Co., Ltd. Mitsunami Co., Ltd.

Mitsunami Co., Ltd.



*As of March 31, 2024

Company name Mitsunami Co., Ltd.
English company name Mitsunami Co., Ltd.
Headquarters location 2-30-11 Nishi-Gotanda, Shinagawa-ku, Tokyo 141-0031
Phone number 03-3492-7770 (main)
Representative Director and President Masaharu Watanabe
Founded September 1, 1956
Established April 1, 1959
Capital 236.72 million yen
Amount of sales Non-consolidated 12.1 billion yen Consolidated 20.7 billion yen*
Number of employees 148 (Group)*
Directors & Executive Officers
〈 Director 〉
Chairman Ryoichi Watanabe
Representative Director and President Masaharu Watanabe
Director Hiroyuki Miyahara
〈 Executive Officer 〉

Managing Executive Officer

Hiroyuki Motegi

(Sales Department 1, Module Team, MITSUNAMI (ASIA) LTD.,MITSUNAMI THAILAND CO.,LTD.)

Senior Executive Officer

Tsuyoshi Ueno

(Sales Department 2, Planning Department, Logistics and Operation Department, Device Team)

Senior Executive Officer

Hiroyuki Miyahara

(Management Department)

Senior Executive Officer

Takaya Hata

(OK Techno, Kansai Sales Office, Third Sales Department)

Executive Officer

Mitsuhide Kobayashi

(Mirai Business Promotion Department,MLSD)

Executive Officer

Nobuyuki Yamada

(MITSUNAMI ASIA(S)PTE.LTD., Typewriter P,India)


1956Sep. "Mitsunami Shoten" established under private management of Ryoichi Watanabe.
Mainly engaged in selling vacuum tubes.
1959Apr. "Mitsunami Shoten Co., Ltd." established with capital of 750,000 yen
Oct. Served as an agent of Matsushita Electric Industrial Co., Ltd. and sales of Panasonic Product began.
1964Jul. Served as an agent of Matsushita Electric Works, Ltd.
1965Feb. Company name changed from "Mitsunami Shoten Co., Ltd." to the current company name "Mitsunami Co., Ltd."
1973Nov. Headquarters building completed in Nishi-Gotanda, Shinagawa-ku
1994Oct. MITSUNAMI(ASIA) LTD. established in Hong Kong
1995Oct. MITSUNAMI ASIA (S) PTE. LTD. established in Singapore
1996Mar. Mitsunami Bulding No.2 completed in Sagamihara City, Kanagawa Prefecture
2004Aug. Acquisition of ISO14001 certification
2005Apr. Masaharu Watanabe appointed as president
2006Jun. MITSUNAMI THAILAND CO., LTD. established in Thailand
2010Nov. Kansai Sales Office established in Osaka City, Osaka Prefecture
Nov. Completion of new building No.2
2013Dec. MITSUNAMI (SHENZHEN) TRADING ., Ltd. established in China
2018Jul. Made OK Techno Co., Ltd. a wholly owned subsidiary
2021May. Mitsunami LS Device Co., Ltd. established
2024Mar. Nakatokyo Sales Office established in Tokyo