Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7184631 | Optical device | Osamu Mitomi, Takenori Ichigi, Jun Okumura, Masataka Yamashita | 2007-02-27 |
| 6961493 | Optical device | Osamu Mitomi, Takenori Ichigi, Jun Okumura, Kenji Aoki, Masataka Yamashita | 2005-11-01 |
| 5710529 | Surface acoustic wave filer device having a cascade filter structure and a piezoelectric substrate having mirror-polished surfaces | Masahiko Sugiyama, Yasufumi Horio, Kenji Suzuki | 1998-01-20 |
| 5294859 | Surface acoustic wave filter device | Kazuhiko Yamanouchi, Mitsuhiro Tanaka, Masahiko Sugiyama, Yasufumi Horio, Kenji Suzuki | 1994-03-15 |
| 5273791 | Method of improving the corrosion resistance of a metal | Yuichiro Imanishi | 1993-12-28 |