Issued Patents All Time
Showing 101–119 of 119 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5769522 | Surface light source device | Isamu Kaneko, Hideaki Katoh, Kazuaki Yokoyama | 1998-06-23 |
| 5718497 | Surface light source device | Kazuaki Yokoyama | 1998-02-17 |
| 5655827 | Surface light source device | Isamu Kaneko, Hideaki Katoh, Kazuaki Yokoyama | 1997-08-12 |
| 5652745 | Optical system using polarized light with prevention of effect of birefringence | Masato Noguchi | 1997-07-29 |
| 5629799 | Chromatic aberration correcting element and its application | Koichi Maruyama, Masahiro Oono, Satoru Tachihara, Masato Noguchi | 1997-05-13 |
| 5600455 | Prismatic member with coarsened portions or triangular prismatic and semi-circular prismatic members arranged on a flat light emitting surface | Kayoko Watai, Kazuaki Yokoyama | 1997-02-04 |
| 5584556 | Surface light source device | Kazuaki Yokoyama | 1996-12-17 |
| 5584572 | Reflector used in a strobe device | — | 1996-12-17 |
| 5577675 | Agitating pulverizer | — | 1996-11-26 |
| 5575549 | Surface light source device | Kayoko Watai, Kazuaki Yokoyama | 1996-11-19 |
| 5572368 | Light projecting device with cylindrical lens | Hidetaka Yokota | 1996-11-05 |
| 5572411 | Surface light source device | Kayoko Watai | 1996-11-05 |
| 5450292 | Surface light source device | Kazuaki Yokoyama | 1995-09-12 |
| 5414599 | Surface light source device | Isamu Kaneko, Hideaki Katoh, Kazuaki Yokoyama | 1995-05-09 |
| 5402324 | Surface illuminant device | Kazuaki Yokoyama, Kayoko Watai | 1995-03-28 |
| 5346147 | Crushing apparatus | Akio Kinouchi | 1994-09-13 |
| 5330112 | Crushing apparatus | Osamu Nagaoka | 1994-07-19 |
| 5257092 | Apparatus for measuring polarization and birefringence | Masato Noguchi | 1993-10-26 |
| 4739938 | Media agitating type grinding machine | Kazuhiro Ishigaki | 1988-04-26 |