December 1994 TPM (1st group).
June 1996 Mr. Kunihiko Oguchi named president.
December 1996 "Ion plated oil control piston ring" released.
December 1998 Electromagnetic shielding material, "Pyramid, ferrite for high-frequency radio waves" released.
June 1999 Technical tie-up with Dana-Albarus for Brazil VW piston ring production.
December 1999 Piston ring department obtained QS9000 certificate.
December 1999 RIKEN's 50th anniversary.
May 2000

RIKEN and Dana to study a technological alliance, European joint venture for piston rings.
1.) North America- Continue Allied Ring Corporation Venture
2.) Europe - Study the feasibility of setting up manufacturing and sales joint ventures.
3.) South America - Maximize current technical tie-up and study the feasibility of setting up a joint venture.
4.) Asia - Study technological alliance.

March 2001 RIKEN's piston ring manufacturing facilities in Kashiwazaki, Japan and Kumagaya, Japan received ISO14000 certificates.