As a wholly-owned subsidiary of Renesas Electronics Corporation, Renesas Semiconductor Manufacturing Co., Ltd. is responsible for the operations for four semiconductor front-end production factories located in Japan (Naka, Kawashiri, Saijo and Takasaki).

Company Outline

Company Name
Renesas Semiconductor Manufacturing Co., Ltd.
751, Horiguchi, Hitachinaka-shi, Ibaraki, 312-8511, Japan
Capital Stock
100 million yen (A wholly owned subsidiary of Renesas Electronics Corporation)
July 1, 1983 (NEC Kansai, Ltd.)
Started operation on April 1, 2014 (Renesas Semiconductor Manufacturing Co., Ltd.)
Hidehiko Kozawa, Representative Director and President
Major Operations
Manufacture and sale of electronic components
(Front-end production of integrated circuits)



Front-end production site in Japan:
4 sites (Renesas Semiconductor Manufacturing Co., Ltd.)

Back-end production site in Japan:
3 sites (Renesas Electronics Corporation)

(as of July 1, 2022)

Naka Factory
751, Horiguchi, Hitachinaka-shi, Ibaraki, 312-8511, Japan
TEL. 029-272-3111
Takasaki Factory
111, Nishiyokotemachi, Takasaki-shi, Gunma, 370-0021, Japan
TEL. 027-352-2111
Saijo Factory
8-6, Hiuchi, Saijo-shi, Ehime, 793-8501, Japan
TEL. 0897-55-1811
Kawashiri Factory
1-1-1, Yahata, Minami-ku, Kumamoto-shi, Kumamoto, 861-4195, Japan
TEL. 096-357-2111
Musashi Site
5-20-1, Josuihon-cho, Kodaira-shi, Tokyo, 187-8588, Japan
(a section of Renesas Electronics Corporation Musashi Site)


Representative Director and President

Hidehiko Kozawa

Corporate Auditor (part-time)

Eiji Gemma

Factory Managers

Vice President, Naka Factory

Kenji Kanamitsu

Vice President, Takasaki Factory

Yukio Arai

Vice President, Saijo Factory

Toshio Watanabe

Vice President, Kawashiri Factory

Kenichi Ito