HY

Hiroyoshi Yasui

KC Koyo Seiko Co.: 6 patents #78 of 749Top 15%
NC Nippon Grease Co.: 1 patents #6 of 22Top 30%
Overall (All Time): #890,222 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5403098 Hydrodynamic bearing device Masayoshi Onishi 1995-04-04
5002289 Bi-directional oil seal with leakage recovering rib formations Teruo Ojima, Michitoshi Mitsumaru 1991-03-26
4668411 Diurea type grease composition Teruo Yoshida, Hiroshi Komiya, Toshitaro Oguchi, Seiji Okamura 1987-05-26
4655617 Sealed rolling bearing with a flow reducing grease passage Teruo Yoshida 1987-04-07
4523862 Tapered roller bearing Teruo Yoshida, Hiroshi Ueno, Katsunori Tsumura 1985-06-18
4464275 Rust preventive oil for a low frictional torque tapered roller bearing 1984-08-07