| 1931 | Jirou Chikuma, the founder, started production and sales of Japanese rice cracker in Mikawashima, Tokyo. At that time, the company name was "Chuouken". |
|---|---|
| 1933 | New factory was built in Totsuka, Shinjuku-ku, Tokyo. |
| 1939 | New factory was built in Osaka to expand the business. |
| 1944 | Totsuka factory was shut down. |
| 1945 | Osaka factory was burned down at World War Two. |
| 1952 | Jirou Chikuma established Chuouken Co., Ltd. again as a stock company, and re-start production and sales of Japanese rice crackers in Osaka. |
| 1960 | Age-Komaru, a fried rice cracker, was put on the market. |
| 1963 | Bonchi-Age was named "Bonchi-Age", and started the sales. |
| 1969 |
The company name was changed into "Bonchi Arare Co., Ltd." Tokyo factory was built to expand business in the east area of Japan. |
| 1975 | Tohoku Bonchi Seika Co., Ltd was established in Sagae-shi, Yamagata. |
| 1984 |
Kobe factory, our main factory, was built and start productions. The company name was changed into "Bonchi Co., Ltd." Marketed "Bonchi-Yaki Salad". |
| 1987 | Marketed "Aji-Karuta". |
| 2001 |
Marketed "Ebi-Agesen". Certified ISO9001 at Yamagata factory, Tohoku Bonchi Seika Co., Ltd. |
| 2002 | The factory, only for Aji-Karuta production, is newly established in Yamagata. |
| 2003 | Certified ISO9001 at Chuo-Kogyodanchi Factory, Tohoku Bonchi Seika Co., Ltd. |
| 2004 | Marketed "Karashi-Mentaiko Ogata Agesen" |
| 2005 | Certified ISO9001 at Kobe Factory and Osaka Head Office |
| 2006 | Certified ISO9001 at Tokyo Factory |
| 2010 | The 50th anniversary release memory of BonChi-Age |
