| December 1937 |
Founded in Ebisu, Shibuya. Capital: 8 million Yen |
| February 1948 | Relocates to 2-16 Kamata, Ota-ku, Tokyo. |
| January 1961 | Relocates to 1-21-16 Minami-rokugo Ota-ku, Tokyo. |
| December 1963 | Reforms the company into a joint stock corporation: YANAGAWA SEIKO Co.,Ltd. is established.
Fusakichi Yanagawa becomes Representative Director.
Increases its capital to 10 million Yen. |
| July 1970 | Chuichi Yanagawa becomes Representataive Director. |
| May 1972 | Completes Tsukuba Factory in Ibaraki. |
| April 1983 | Forms a capital tie-up with Haneda Seimitsu Kogyo Co.,Ltd. for press-work. |
| September 1987 | Relocated to 3-15-2 Kamata, Ota-ku |
| December 1987 | Celebrated 50th anniversary of founding |
| September 1989 | Builds Toyosato Factory at the Toyosato Techno Park, and begins centralized control on the production of automatic lathes.
Non-stop operation begins (340 days a year/24 hours). |
| Februrary 1992 | Development of Yanaflon (Tetrafluoroethylene)
Launches "Endless MF Dry bearing" both domestically and internationally.
Files a patent application in 14 countries. |
| October 2002 | Certified ISO14001 (Toyosato Factory) except Yanaflon |
| March 2003 | Increases its machinery equipment at Tsukuba Factory, and starts 24 hour-operations. |
| May 2003 | Introduces an ionic water cleaning system. |
| March 2004 | Certified ISO9001 (Toyosato Factory) except Yanaflon |
| November 2004 | Control center opens. |
| Janurary 2005 | Introduces a hydrocarbon cleaning system. |
| May 2005 | Certified ISO9001 (Control center) |
| June 2006 | YANAGAWA SEIKO VIETNAM Co.,Ltd. is established. |
| July 2006 | Increases its capital to 50 million Yen. |
| December 2007 | Celebrated 70th anniversary of founding |
| May 2008 | Vietnam Factory completed, mass production started |
| August 2008 | Vietnam Factory ISO14001 acquired |
| November 2008 | Vietnam Factory ISO9001 acquired |
| May 2009 | Vietnam Factory NC lathe expanded |
| September 2010 | Vietnam Factory granted ISO/TS16949 certification |
| June 2011 | Vietnam Factory granted OHSAS18001 certification |
