Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4799836 | Method and apparatus for machining the side edge surface of a web plate | Shingo Kurisu, Shunji Omori, Hiroyuki Takenaka, Tsuneo Egawa, Takuro Mitsunaga | 1989-01-24 |
| 4733998 | Method and apparatus for machining the side edge surface of a web plate | Shingo Kurisu, Shunji Omori, Hiroyuki Takenaka, Tsuneo Egawa, Takuro Mitsunaga | 1988-03-29 |
| 4189257 | Sheltering apparatus for use in long wall mining | Shigeo Nakajima, Masao Tanaka, Ken Takahashi, Takao Kanno | 1980-02-19 |