Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819860 | Optical amplifying glass and optical waveguide | Seiki Ohara, Naoki Sugimoto, Katsuhiro Ochiai, Yasuji Fukasawa, Takeshi Hirose +1 more | 2004-11-16 |
| 6806434 | Electric discharge machine with output power control | Akihiro Suzuki, Akihiko Iwata, Takashi Hashimoto, Yoshikazu Tsunoda, Atsushi Taneda | 2004-10-19 |