Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5854707 | Polarizing type optical apparatus | Nobuyuki Kasama, Yasuyuki Mitsuoka, Tadao Iwaki | 1998-12-29 |
| 5800033 | Image projecting apparatus | Yasuyuki Mitsuoka, Nobuyuki Kasama, Tadao Iwaki | 1998-09-01 |
| 5577826 | Reflecting type color image projecting apparatus | Nobuyuki Kasama, Tadao Iwaki, Yasuyuki Mitsuoka | 1996-11-26 |
| 5434936 | Mechanical optical switch | Shinji Nagaoka, Nobuo Suzuki, Akira Tsuchiya, Seiichi Tanuma, Tomohiro Yoshikawa +1 more | 1995-07-18 |