YH

Yoshihiko Hayama

NT Ntn: 4 patents #361 of 1,364Top 30%
Bridgestone: 1 patents #1,586 of 2,860Top 60%
📍 Nanbu, JP: #375 of 1,154 inventorsTop 35%
Overall (All Time): #1,242,569 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
7785205 Cross groove constant velocity universal joint 2010-08-31
7690999 Shaft coupling Takashi Nozaki, Hiroyuki Hakamata, Keisuke Sone 2010-04-06
6332844 Propeller shaft and constant velocity universal joint for a propeller shaft Haruo Nagatani 2001-12-25
6280338 Plunging constant velocity universal joint for propeller shaft Haruo Nagatani 2001-08-28