Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10767862 | Flame rod | Takashi Ojiro, Kazuyuki Akagi, Masaru Takeuchi, Yoshinari Iwata | 2020-09-08 |
| 5963700 | Optical fiber | Masao Kato, Kenji Kurokawa, Tuneo Horiguchi | 1999-10-05 |
| 5859944 | Optical connector | Akira Inoue, Toru Iwashima, Masumi Ito, Shin-ichi Furukawa | 1999-01-12 |
| 5695880 | Lead-containing fluoride glass, optical fiber and process for producing it | Takashi Kogo, Hiroo Kanamori, Masashi Onishi, Masataka Nakazawa | 1997-12-09 |
| 5432131 | Lead-containing fluoride glass, optical fiber and process for producing it | Takashi Kogo, Hiroo Kanamori, Masashi Onishi, Masataka Nakazawa | 1995-07-11 |
| 5377294 | Optical functioning glass and apparatus using the same | Masahi Onishi, Koji Nakazato, Hiroo Kanamori, Minoru Watanabe | 1994-12-27 |
| 5337401 | Optical functioning glass and method of manufacturing same, optical fiber, waveguide device, and laser device | Masashi Onishi, Koji Nakazato, Yoshiki Chigusa, Minoru Watanabe | 1994-08-09 |
| 5253322 | Optical functioning glass and fiber amplifier | Masashi Onishi, Yoshiki Chigusa, Koji Nakazato, Minoru Watanabe, Tomoki Sugawa | 1993-10-12 |
| 5244846 | Optical functioning glass and apparatus using the same | Masashi Onishi, Koji Nakazato, Hiroo Kanamori, Minoru Watanabe | 1993-09-14 |