Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11389898 | Laser processing apparatus, laser processing method, and method for manufacturing semiconductor apparatus | Tamio Matsumura | 2022-07-19 |
| 11175520 | Optical semiconductor device and method for manufacturing the same | Yuichiro Horiguchi, Satoshi Nishikawa, Koichi Akiyama, Yohei HOKAMA, Yosuke Suzuki | 2021-11-16 |
| 6497380 | Drum winding apparatus | Hiroshi Kigawa, Takashi Yumura | 2002-12-24 |
| 6126143 | Hoisting winch for lifting and lowering | Yoichi Nagase, Naoya Ogawa | 2000-10-03 |