Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE39857 | Infrared absorption filter | Tetsuo Shimomura, Masanori Kobayashi, Yozo Yamada, Seiichiro Yokoyama | 2007-09-25 |
| RE39858 | Infrared absorption filter | Tetsuo Shimomura, Masanori Kobayashi, Yozo Yamada, Seiichiro Yokoyama | 2007-09-25 |
| 6542292 | Infrared absorption filter | Tetsuo Shimomura, Seiichiro Yokoyama | 2003-04-01 |
| 6522463 | Infrared absorption filter | Tetsuo Shimomura, Masanori Kobayashi, Yozo Yamada, Seiichiro Yokoyama | 2003-02-18 |