Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6597712 | Laser diode module | Kimio Tatsuno, Kazumi Kawamoto, Katsumi Kuroguchi | 2003-07-22 |
| 6501891 | Optical wave-guide, light-beam spot converter and optical transmission module | Kazumi Kawamoto | 2002-12-31 |
| 6289157 | Optical wave-guide, light-beam spot converter and optical transmission module | Kazumi Kawamoto | 2001-09-11 |