Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12185703 | Fishing lure and center-of-gravity movable tube | Koichi Ito | 2025-01-07 |
| 11166444 | Movable center-of-gravity tube and fishing lure having same built in | Koichi Ito | 2021-11-09 |
| 10935074 | Linear bearing and linear bearing with housing | Hailian Yin | 2021-03-02 |
| 6508473 | Piston ring | Shoji Tanaka, Shinichi Imai | 2003-01-21 |
| 5820131 | Piston ring having wear coating consisting of Cr.sub.2 N or a mixture of Cr.sub.2 N and Cr | Shoji Tanaka, Nobuyuki Yamashita | 1998-10-13 |
| 5718437 | Combined oil ring with spacer/expander having Cr.sub.2 N coating thereon | Shoji Tanaka, Nobuyuki Yamashita | 1998-02-17 |
| 5601293 | Sliding member with hard ternery film | Nobuyuki Yamashita, Shoji Tanaka | 1997-02-11 |
| 5582414 | Sliding member and method for manufacturing the same | Satomichi Miyazaki, Nobuyuki Yamashita, Shoji Tanaka, Hiroshi Tamagaki | 1996-12-10 |
| 5449547 | Hard coating material, sliding member coated with hard coating material and method for manufacturing sliding member | Satomichi Miyazaki, Nobuyuki Yamashita, Shoji Tanaka, Hiroshi Tamagaki | 1995-09-12 |