Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7637702 | Drilling method | Takao Furukawa, Hiroshi Kawasaki, Toshiyuki Iwata, Katsuhiro Nagasawa | 2009-12-29 |
| 7130715 | Machining method and machining apparatus | Kazuo Watanabe, Yasushi Ito, Katsuhiro Nagasawa | 2006-10-31 |
| 5200906 | Wire-cut electric discharge machining method | Akira Busujima, Toshiyuki Makino | 1993-04-06 |