Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7588132 | External control type fan-coupling device | Ken Shiozaki | 2009-09-15 |
| 7419040 | External control type fan-coupling device | Ken Shiozaki | 2008-09-02 |
| 7367438 | External control type fan-coupling device | Ken Shiozaki | 2008-05-06 |
| 5844638 | Light source apparatus using a cone-shaped element and an applied apparatus thereof | Yoshiharu Ooi, Tsuneo Wakabayashi, Yoshiyuki Sonda | 1998-12-01 |
| 5754260 | Projection type color liquid crystal optical apparatus | Yoshiharu Ooi, Tsuneo Wakabayashi, Yoshiyuki Sonda, Masaya Kunigita, Yoshinori Hirai | 1998-05-19 |
| 5659409 | Light source apparatus using a cone-like material and an applied apparatus thereof | Yoshiharu Ooi, Tsuneo Wakabayashi, Yoshiyuki Sonda | 1997-08-19 |
| 5648860 | Projection type color liquid crystal optical apparatus | Yoshiharu Ooi, Tsuneo Wakabayashi, Yoshiyuki Sonda, Masaya Kunigita, Yoshinori Hirai | 1997-07-15 |