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)
34	Company was reorganized as Sakagami Firm Ltd. (capital of Yen 100 thousand)
41	Laboratory was opened in Koiwa, Edogawa-ku, Tokyo
42	Company name was changed to Sakagami Seisakusho Ltd. (capital Yen 1 million)
44	Head office was moved from Honjoyokokawabashi to Kinshicho, the present location.
46	Ministry of railway appointed the company as a cooperative & authorized parts
52	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.
60	Nagoya office was opened in Nagoya-city.
61	Obtained the license of JIS certified O-ring manufacturing
64	Funabashi works commerced operation in Funabashi-city, Chiba-pref.
66	Fukuyama liaison office was built in Fukuyama-city, Hiroshima-pref.
68	factory.Appointed to be a committee member of JIS standardization of V-Packings.
69	Fukuyama liaison office was moved to Hiroshima-city, Hiroshima-pref. and became Hiroshima liaison office.
70	Funabashi works were approved as a JIS certified O-ring manufacturing factory.
74	The capital was increased to Yen 200 million.
75	Awarded by the minister of transport for the contribution to the development of integral parts for railways.
85	Nagoya office was moved to the present location and the building was renewed.
89	Mr. Masao Takaishi was inaugurated as a president.
90	Works at Head office was newly built.
92	Hiroshima liaison office was renamed Hiroshima office.
95	Aomori works was built in Aomori-city and started operation.
97	Cantennial since foundation.Head office and Funabashi works obtained the certificate of International Standard ISO9001 of Quality Manegement System.
99	Aomori works obtained ISO9001.
2003	Head office, Funabashi works and Aomori works obtained the certificate ofInternational Standard ISO14001 of Environmental Management System.
06	Nagoya office obtained ISO 9001.
09	Head office,Funabashi works,Aomori works and Nagoya office obtained the certificate of the automotive QMS standard, TS16949.
12	Completed renewal of office building at Funabashi works.
15	Head office, Funabashi works and Aomori works obtained the cert ification of OHSAS18001 International Occupational Health and Safety Management System.
19	Head office, Funabashi works and Aomori works obtained the cert ification of ISO45001 International Occupational Health and Safety Management System.