Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5116391 | Curved surface rubbing apparatus | Hirotomo Numakura | 1992-05-26 |
| 5005654 | High torque hydraulic shoe bolt wrench | Hirotomo Numakura | 1991-04-09 |
| 4923251 | Apparatus for removing asbestos and like materials from a surface | Naoyoshi Funakawa, Yasuharu Iida, Masahiro Sakurai | 1990-05-08 |
| 4881365 | Assembly apparatus for truck links | Hirotomo Numakura | 1989-11-21 |
| 4869417 | Automatic build-up welding machine for track rollers | — | 1989-09-26 |
| 4805826 | Slag removing apparatus for pad-welding machine | Hirotomo Numakura, Masahiro Sakurai | 1989-02-21 |
| 4718228 | Apparatus for displacing a line of track chain | Hirotomo Numakura, Masayuki Fukui | 1988-01-12 |
| 4621491 | Method of discriminating fitting pressure for links on a track press | Akira Tanaka, Izumi Takahashi | 1986-11-11 |
| 4622451 | Apparatus for rebuilding worn shoe grouser for track chain | Masahiro Sakurai | 1986-11-11 |
| 4543818 | Seal check apparatus for lubricant-enclosure type track joints of track chains | Tadashi Sato, Kazuyoshi Yamamoto, Izumi Takahashi | 1985-10-01 |
| 4233487 | Metal build-up apparatus with improved cooling means | Izumi Takahashi, Masahiro Sakurai, Hidehiro Shimizo | 1980-11-11 |