Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762820 | Exposure apparatus and device manufacturing method | Kenji Udagawa, Tomoyuki Yoshida, Michinori Hashimoto | 2004-07-13 |
| 5830414 | Air cleaning filter | Tsutomu Ishii, Seiichi Takizawa, Tetsuo Shimamura, Michinori Hashimoto, Shozo Ichimura | 1998-11-03 |