Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6831749 | Sagnac interferometer current sensor | Aritaka Ohno, Ryuji Usui, Masao Takahashi, Kinichi Sasaki | 2004-12-14 |
| 6611099 | Plasma display panel using Xe discharge gas | Takaaki Murata, Takeshi Shinkai, Yuuji Okita, Shinji Kobayashi | 2003-08-26 |
| 6281672 | Optical current transformer | Masao Takahashi, Sakae Ikuta | 2001-08-28 |
| 5933238 | Optical current measurement device and method of manufacturing it | Sakae Ikuta, Masao Takahashi | 1999-08-03 |
| 5915059 | Optical fiber cable and a method for manufacturing the same | Masao Takahashi, Sakae Ikuta, Keiko Matsumoto | 1999-06-22 |
| 5844410 | Device for optically measuring physical quantity in power equipment and method of manufacturing the same | Sakae Ikuta, Masao Takahashi, Keiko Matsumoto | 1998-12-01 |
| 5454003 | Gas laser oscillator | Takaaki Murata, Tohoru Tamagawa, Hirokatsu Suzuki | 1995-09-26 |
| 5408490 | Gas laser device | Takaaki Murata, Tohru Tamagawa, Hideyuki Shinonaga, Hirokatsu Suzuki | 1995-04-18 |
| 5295149 | Gas laser device | Tohru Tamagawa, Takaaki Murata, Shinji Kobayashi, Akira Moriguchi, Hirokatsu Suzuki | 1994-03-15 |
| 4956847 | Electrodes for a gas laser apparatus and method of making the same | Koichi Nishida | 1990-09-11 |
| 4956848 | Electrodes for gas apparatus and method of making the same | Koichi Nishida | 1990-09-11 |