| Brief History |
| 1893 | Established as a private company at the present place of Naka-ku, Yokohama. |
| 1935 | Named an associated plant of Nissan Motor Co., Ltd. |
| 1939 | Established an annex plant at the current location of the head office. |
| Aug.1943 | Company was incorporated. |
| Jan.1957 | Capital is increased to \10 million. Company is designated a model plant of small and medium-sized companies. |
| Jul.1965 | Technical Assistance Agreement with Atwood of the U.S.A. |
| May.1969 | Honmoku Plant started the operation. |
| Mar.1970 | Technical Center was completed for the purpose of unifying product development and testing. |
| Nov.1971 | Technical Assistance Agreement with Hsin Chong Machinery Works Co.,Ltd. of Taiwan. |
| Nov.1975 | Technical Assistance Agreement with Siam Parts & Engineering Co.,Ltd.,Thailand. |
| Jul.1976 | Joint venture company was established with Hsiung Hwa Machinery Co.,Ltd. in Taiwan. |
| Mar.1977 | Kyushu Plant started the operation. The third expansion of Honmoku Plant has been completed. |
| Nov.1983 | Company was awarded the Nissan Quality Control Prize. |
| May.1988 | Ohi-Atwood Automotive Corporation, a joint venture with Atwood, was established. |
| Jul.1990 | Akita Ohi was established. |
| May.1991 | Ohi Automotive Corporation was renamed to Ohi-Atwood Automotive of America. |
| Nov.1991 | Registered on over-the-counter market of the Japan Securities Dealers Association. |
| Mar.1994 | Investment in HSIN Hwa Machinery making capital investment in Hsin Chong's stock. |
| May.1994 | Fujisawa Logistics Center was founded. |
| Dec.1995 | Henan Ohi Xing Guang Autoparts was established in China. |
| Mar.1997 | The Oppama Plant was integrated into the Honmoku Plant. |
| Jul.1997 | The Honmoku Plant and the head office acquired ISO 9001 certification. |
| Aug.1998 | The Ishikawa Plant and the Kyushu Plant acquired ISO 9001 certification. |
| Aug.1999 | The head office, Honmoku Plant, Ishikawa Plant and Kyushu Plant acquired QS 9000 certification. |
| Nov. 2000 | Cooperation Agreement with Inalfa in Sun roof business was signed. |
| Dec. 2000 | The Joint Venture called "Wuxi Da Chong Industry Co.,Ltd." Hsin Chong Machinery Works Co., Ltd. of Taiwan was estaglished in Kiangsu of China. |
| Apr. 2001 | Cooperation Agreement with Edscha in Check Link and Door Hinge business was signed. |
| Apr. 2001 | The Honmoku Plant,the Ishikawa Plant,The Kyushu Plant acquired ISO 14001 certification. |
| Oct. 2001 | The Joint Venture called "Ohi Inalfa roof systems Co.,Ltd." Inalfa Co.,Ltd. of Netherlands was established. |
