Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5870365 | Start ID recording system for use in a digital audio information recording apparatus | Naoto Sawada | 1999-02-09 |
| 5513037 | Rear-projection screen and a rear projection image display employing the rear-projection screen | Takahiko Yoshida, Koji Hirata, Hiroki Yoshikawa, Masayuki Muranaka, Atsuo Osawa | 1996-04-30 |
| 5500747 | Ultra-wide angle liquid crystal projector system | Hideo Tanide, Masayuki Muranaka, Shigeru Mori, Kiyoshi Wada, Naoyuki Ogura | 1996-03-19 |
| 5400114 | Rear-projection screen and a rear projection image display employing the rear-projection screen | Takahiko Yoshida, Koji Hirata, Hiroki Yoshikawa, Masayuki Muranaka, Atsuo Osawa | 1995-03-21 |
| 5272540 | Temperature compensating lens system for projection television | Koji Hirata, Hiroki Yoshikawa, Tooru Numata, Kiyoshi Wada, Masayuki Muranaka +2 more | 1993-12-21 |
| 5255122 | Projection lens system for projection type television | Nobuhiro Konuma, Takahiko Yoshida, Hiroki Yoshikawa, Masayuki Muranaka | 1993-10-19 |
| 5200814 | Video projector with optical color balance | Koji Hirata, Hiroki Yoshikawa, Takahiko Yoshida, Tooru Numata, Masayuki Muranaka +2 more | 1993-04-06 |
| 5103302 | Optical system for projection type image display device | Takahiko Yoshida, Hiroki Yoshikawa, Shigeru Mori, Koji Hirata, Tooru Numata +1 more | 1992-04-07 |
| 5066099 | Rear projection screen and method of producing the same | Takahoko Yoshida, Masayuki Muranaka, Hiroki Yoshikawa, Koji Hirata, Masakuni Teratani +1 more | 1991-11-19 |
| 4948237 | Projection lens system | Koji Hirata, Kyohei Fukuda, Hiroki Yoshikawa, Shigeru Mori, Masayuki Muranaka +2 more | 1990-08-14 |
| 4729031 | Coupling system for image projection | Shobu Saito, Yoshiaki Iwahara, Masanori Oguino, Osamu Shuugizono | 1988-03-01 |