Issued Patents 1989
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882619 | High resolution image pickup system with color dispersion means | Akira Hasegawa, Susumu Takahashi, Kiyoshi Tsuji, Hiroshi Matsui | 1989-11-21 |
| 4867546 | Objective lens system for an endoscope | Kikumi Tojo, Akira Yokota | 1989-09-19 |
| 4867136 | Endoscope apparatus | Akira Suzuki, Susumu Takahashi, Takeaki Nakamura, Tatsuya Yamaguchi, Takashi Tsukaya +19 more | 1989-09-19 |
| 4831437 | Video endoscope system provided with color balance adjusting means | Masao Uehara | 1989-05-16 |
| 4824225 | Illumination optical system for an endoscope | — | 1989-04-25 |
| 4807026 | Electronic image pickup device for endoscopes | Hisao Yabe | 1989-02-21 |
| 4806001 | Objective for an endoscope | Minoru Okabe, Akira Yokota | 1989-02-21 |
| 4805028 | Television camera for endoscopes provided with an optical low-pass filter | Jun Yoshinaga | 1989-02-14 |
| 4795248 | Liquid crystal eyeglass | Takao Okada, Takeaki Nakamura, Kazuo Nakamura, Toshihito Kouchi, Hiroyuki Yamamoto +1 more | 1989-01-03 |