Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7866831 | Image projector | Ken'ichi Kasazumi | 2011-01-11 |
| 6831406 | Electroluminescent device having a very thin emission layer | Masao Fukuyama, Mutsumi Suzuki, Yuji Kudo | 2004-12-14 |
| 6730929 | Organic electroluminescent device | Masao Fukuyama, Mutsumi Suzuki, Yuji Kudo | 2004-05-04 |
| 6726517 | Cold cathode forming process | Yuka Yamada, Takehito Yoshida, Nobuyasu Suzuki, Toshiharu Makino | 2004-04-27 |
| 6392338 | Organic light emitter having optical waveguide for propagating light along the surface of the substrate | Masao Fukuyama | 2002-05-21 |
| 6198217 | Organic electroluminescent device having a protective covering comprising organic and inorganic layers | Mutsumi Suzuki, Masao Fukuyama | 2001-03-06 |
| 5925891 | Field-emission electron source | Keisuke Koga, Takehito Yoshida, Yuka Yamada | 1999-07-20 |
| 5897790 | Field-emission electron source and method of manufacturing the same | Keisuke Koga, Takehito Yoshida, Yuka Yamada | 1999-04-27 |
| 5648951 | Movable optical head integrally incorporated with objective lens and hologram element | Makoto Kato, Yoshiaki Komma, Shin-ichi Kadowaki, Seiji Nishino, Tetsuo Saimi | 1997-07-15 |
| 5502314 | Field-emission element having a cathode with a small radius | — | 1996-03-26 |
| 5494179 | Field-emitter having a sharp apex and small-apertured gate and method for fabricating emitter | Keisuke Koga | 1996-02-27 |
| 5301182 | Optical pickup head | Yoshiaki Komma, Seiji Nishino | 1994-04-05 |
| 5274657 | Phase lock type semiconductor laser | Fumihiro Sogawa | 1993-12-28 |
| 5161148 | Optical pick-up using wavelength guide with grating coupler therein | Hiroaki Yamamoto, Fumihiro Sogawa | 1992-11-03 |
| 5062098 | Optical pick-up device having holographic element | Makoto Kato | 1991-10-29 |
| 4562437 | Digital loop filter | Shunroku Sasaki, Kazuo Tsukada, Yoshiharu Kanzaki | 1985-12-31 |
| 4496951 | Hyperbolic navigation receiver | Kazuo Tsukada, Yoshiharu Kanzaki | 1985-01-29 |
| 4389096 | Image display apparatus of liquid crystal valve projection type | Komei Asai, Masakazu Fukai | 1983-06-21 |