Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6785444 | Optical fiber grating device | Shinji Ishikawa, Masakazu Shigehara, Michiko Takushima | 2004-08-31 |
| 6725690 | Burner for synthesizing glass particles and method for producing porous glass body | Yuichi Ohga, Nobuya Akaike, Haruhiko Aikawa, Takashi Matsuo, Motonori Nakamura | 2004-04-27 |
| 6580854 | Optical waveguide grating and method of making the same | Shinji Ishikawa, Masakazu Shigehara, Michiko Harumoto | 2003-06-17 |
| 6563984 | Long-period grating device | Michiko Harumoto, Masakazu Shigehara, Shinji Ishikawa | 2003-05-13 |
| 6490078 | Optical fiber for optical amplifier, optical fiber amplifier and optical fiber laser | Masahiro Takagi, Yuichi Ohga, Motoki Kakui, Shinji Ishikawa, Masakazu Shigehara +1 more | 2002-12-03 |
| 6487340 | Optical fiber grating element, production method, and optical fiber filter | Shinji Ishikawa, Masakazu Shigehara, Michiko Takushima | 2002-11-26 |
| 5867618 | Optical fiber grating and method of manufacturing the same | Masumi Ito, Maki Ikeji | 1999-02-02 |
| 5763081 | Glass body for optical fiber method of selecting the same optical fiber and method of making thereof | Yuichi Ohga, Shinji Ishikawa | 1998-06-09 |
| 5466926 | Colored microlens array and method of manufacturing same | Nobusuke Sasano | 1995-11-14 |
| 5321297 | Solid state image pickup device having light conversion lens formed on a strip layer | — | 1994-06-14 |