Issued Patents All Time
Showing 176–200 of 248 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4933737 | Polysilon contacts to IC mesas | Tohru Nakamura, Takao Miyazaki, Ichiro Imaizumi, Takahiro Okabe, Minoru Nagata +1 more | 1990-06-12 |
| 4914488 | Compound semiconductor structure and process for making same | Masao Yamane, Tomoyoshi Mishima, Shigeo Goto, Makoto Morioka | 1990-04-03 |
| 4903824 | Conveyor belt made of carbon or ceramic fibers | — | 1990-02-27 |
| 4903192 | Pid controller system | Tadayoshi Saito, Junzo Kawakami, Testuo Suehiro, Hiroshi Matsumoto, Kouji Tachibana | 1990-02-20 |
| 4902115 | Optical system for endoscopes | — | 1990-02-20 |
| 4900247 | High-temperature heating furnace | — | 1990-02-13 |
| 4895433 | Visual field converting optical system | Minoru Okabe, Akira Hasegawa, Kimihiko Nishioka | 1990-01-23 |
| 4882619 | High resolution image pickup system with color dispersion means | Akira Hasegawa, Kiyoshi Tsuji, Kimihiko Nishioka, Hiroshi Matsui | 1989-11-21 |
| 4873423 | High temperature heating furnace | — | 1989-10-10 |
| 4867136 | Endoscope apparatus | Akira Suzuki, Takeaki Nakamura, Tatsuya Yamaguchi, Takashi Tsukaya, Tsutomu Yamamoto +19 more | 1989-09-19 |
| 4848899 | Fixation sight apparatus for ophthalmologic instrument | Katsuhiko Kobayashi | 1989-07-18 |
| 4824205 | Apparatus for improving image formed by imaging optical system | Nobuo Yamashita, Hiroshi Matsui | 1989-04-25 |
| 4805005 | Semiconductor device and manufacturing method of the same | Toshiyuki Usagawa, Yasuhiro Shiraki, Yuichi Ono, Norikazu Hashimoto | 1989-02-14 |
| 4783154 | Image-transmitting optical system | — | 1988-11-08 |
| 4774532 | Laser plate-making apparatus | Yuki Ninomiya, Yasukazu Ono | 1988-09-27 |
| 4773749 | Ophthalmologic photographing apparatus | Fumio Ohtomo | 1988-09-27 |
| 4772925 | High speed switching field effect transistor | Tadashi Fukuzawa, Ken Yamaguchi, Hisao Nakashima, Michiharu Nakamura | 1988-09-20 |
| 4759038 | PCM transmission system | Susumu Tanaka | 1988-07-19 |
| 4746203 | Optical system for endoscope | Kimihiko Nishioka, Tsutomu Yamamoto, Akira Yokota | 1988-05-24 |
| 4737622 | Apparatus for photometrically detecting an optically focused condition of an optical system | Yoshio Shishido | 1988-04-12 |
| 4735491 | Optical system for endoscopes | — | 1988-04-05 |
| 4730909 | View direction changing optical system for endoscopes | — | 1988-03-15 |
| 4730850 | Quick release coupling device | — | 1988-03-15 |
| 4721359 | Illuminating optical system for endoscopes | Kimihiko Nishioka | 1988-01-26 |
| 4720178 | Optical system for endoscope | Kimihiko Nishioka, Tsutomu Yamamoto, Akira Yokota | 1988-01-19 |