Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6836418 | Slant short-period grating | Akira Sakamoto, Masaaki Sudo, Reiko Kojima, Tomosada Inada, Kenji Nishide | 2004-12-28 |
| 6819834 | Optical fiber grating, optical fiber grating manufacturing method, and optical fiber grating manufacturing apparatus | Yuu Ishii, Michihiro Nakai, Kenji Nishide, Kensuke Shima | 2004-11-16 |
| 6810912 | Spool valve with decreased fluid force acting on spool | Yuuji Ogura, Satoshi Hamamoto, Zenzou Hamada | 2004-11-02 |