YH

Yoshio Hirakawa

SU Subaru: 2 patents #413 of 1,436Top 30%
MM Mitsubishi Materials: 2 patents #498 of 1,543Top 35%
Overall (All Time): #1,270,539 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6638571 Coated cemented carbide cutting tool member and process for producing the same Tetsuhiko Honma, Hitoshi Kunugi, Toshiaki Ueda 2003-10-28
6497455 Vehicle seat with occupant protection devices Yoshinobu Umezawa, Tadashi Tashiro, Noriyoshi Baba 2002-12-24
6450574 Vehicle seat with occupant protection devices Yoshinobu Umezawa, Tadashi Tashiro, Noriyoshi Baba 2002-09-17
6338894 Coated cemented carbide cutting tool member and process for producing the same Tetsuhiko Honma, Hitoshi Kunugi, Toshiaki Ueda 2002-01-15