Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5730305 | Crane safety apparatus | Akinori Ichiba | 1998-03-24 |
| 5645181 | Method for detecting a crane hook lifting distance | Akinori Ichiba | 1997-07-08 |
| 5618227 | Apparatus for polishing wafer | Shigeo Kumabe, Keisuke Takahashi | 1997-04-08 |
| 5310441 | Wafer binding method and apparatus | Tatsumi Matsumoto, Keisuke Takahashi, Mitsuzi Koyama | 1994-05-10 |
| 5254205 | Wafer binding method and apparatus | Tatsumi Matsumoto, Keisuke Takahashi, Mitsuzi Koyama | 1993-10-19 |
| 4851263 | Method and apparatus for application of wax on wafers | Keiichi Ishii, Kazunori Saeki, Mitsuji Koyama | 1989-07-25 |