Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6615942 | Swivel type working vehicle | Eisaku Shinohara, Yasuo Nakata, Takeshi Kajimoto, Nobuo Higashino, Motoki Sunada +1 more | 2003-09-09 |
| 5904444 | Propelling apparatus for underground propelling construction work | Teruo Kabeuchi, Masaya Hattori, Takashi Togawa, Yukishige Yamada, Shigeaki Okuyama +3 more | 1999-05-18 |
| 5878825 | Underground propelling method | Shigeaki Okuyama, Teruo Kabeuchi, Katsuhiko Mukuno, Masaya Hattori, Kazunori Tsujimoto +3 more | 1999-03-09 |
| 5433249 | Hydraulic pilot valve | Hirotaka Tsubota, Mitsuo Kato | 1995-07-18 |
| 5108253 | Hydraulic piping structure for a backhoe | Masahiko Kobayashi, Takafumi Wada | 1992-04-28 |
| D312468 | Power shovel | Masao Masumoto, Yoshinobu Tabuchi, Kazuhiko Tsuji | 1990-11-27 |