| 1897 |
Mr. Hatsuzo Sakagami started manufacturing leather made power transmission belt in Sumida-ku, Tokyo. |
| 1925 |
The first Japan made leather seals were approved and purchased for brake cylinders by Japanese Ministry of Railway (currently Japan Railroad). |
| 1934 |
Company was reorganized as Sakagami Firm Ltd. (capital of 100 thousand　Yen) |
| 1941 |
Laboratory was established in Koiwa, Tokyo. |
| 1942 |
Company name was changed to Sakagami Seisakusho Ltd. (capital 1 million Yen) |
| 1944 |
Head office was moved from Honjoyokokawabashi to Kinshicho, the present location. |
| 1946 |
Ministry of railway appointed the company as a cooperative & authorized parts supplier. |
| 1952 |
Appointed to be a committee member of Japan industrial Standard (JIS) for leather belts.
Awarded by the minister of commerce for the contribution to the development of domestic railway at 80th anniversary of Japan National Railways. |
| 1960 |
Nagoya office was opened in Nagoya-city. |
| 1961 |
Appointed to be a committee member of JIS standardization of V-Packings.
Obtained the license of JIS certified O-ring manufacturing factory. |
| 1964 |
Funabashi works commenced operation in Funabashi-city, Chiba-pref. |
| 1966 |
Fukuyama liaison office was built in Fukuyama-city, Hiroshima-pref. |
| 1968 |
We were authorized as a factory available for JIS indication on V-packings. |
| 1969 |
Japan's first automotive seals for power steering were on sales.
Fukuyama liaison office was moved to Hiroshima-city, Hiroshima-pref. and became Hiroshima liaison office. |
| 1970 |
Funabashi works were approved as a JIS certified O-ring manufacturing factory. |
| 1974 |
Toyota group transplanted Sakagami standard into Toyota standard for the production equipment.
The capital was increased to 200 million Yen. |
| 1975 |
Awarded by the minister of transport for the contribution to the development of innovative parts for railways. |
| 1985 |
Nagoya office was moved to the present location and the building was renewed. |
| 1989 |
Mr. Masao Takaishi was assigned to the president. |
| 1990 |
Works at headquarters was newly built. |
| 1992 |
Hiroshima liaison office was renamed Hiroshima office. |
| 1995 |
Aomori works was built in Aomori-city and started operation. |
| 1997 |
On the 100th anniversary of Sakagami, headquarters and Funabashi works obtained the certification
of international Standard ISO9001 Quality Management System. |
| 1999 |
Aomori works were accredited to be ISO9001 certified. |
| 2003 |
Head office, Funabashi works and Aomori works renewed certification,
International Standard ISO14001 of Environmental Management System. |
| 2006 |
Nagoya office accredited to be ISO9001 certified. |
| 2009 |
Headquarters, Funabashi works, Aomori works and Nagoya office certified under the automotive QMS standard, TS16949. |
