Issued Patents All Time
Showing 51–75 of 97 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227914 | Stereomicroscope including a single variable magnification optical system | Toyoharu Hanzawa, Tomonori Ishikawa, Shinichi Nakamura, Hiroshi Fujiwara, Masahiko Kinukawa +5 more | 1993-07-13 |
| 5223982 | Objective lens system for endoscopes | Takayuki Suzuki, Susumu Takahashi | 1993-06-29 |
| 5212375 | Camera focus detection system using holographic beam splitter | Hisashi Goto, Tsutomu Uzawa, Yoshihiro Kawano, Hiroyuki Kurita, Hideaki Yoshida +1 more | 1993-05-18 |
| 5177605 | Optical system for endoscopes and endoscopes using same | Susumu Takahashi, Tsutomu Igarashi, Atsushi Miyazaki, Akira Hasegawa, Masahiro Chiba +1 more | 1993-01-05 |
| 5150234 | Imaging apparatus having electrooptic devices comprising a variable focal length lens | Susumu Takahashi, Akira Takano, Hirofumi Miyanaga, Hisanari Shimazu, Akitoshi Toda +2 more | 1992-09-22 |
| 5121213 | Imaging system having a blurring optical element for minimizing moire phenomenon | — | 1992-06-09 |
| 5097352 | Optical system including liquid crystal devices | Susumu Takahashi, Yoshinao Oaki, Akira Takano, Hirofumi Miyanaga, Hisanari Shimazu +2 more | 1992-03-17 |
| 5091795 | Optical low-pass filter without using polarizers | Toshihito Kouchi, Takao Okada | 1992-02-25 |
| 5071229 | Imaging apparatus having electrooptic devices which comprise a variable focal length lens | Yoshinao Oaki, Susumu Takahashi, Akira Takano, Hirofumi Miyanaga, Hisanari Simazu +4 more | 1991-12-10 |
| RE33689 | Objective lens system for endoscopes | — | 1991-09-10 |
| 5014121 | High image resolution image pickup system with color dispersion means | Akira Hasegawa, Susumu Takahashi, Koyoshi Tsuji, Hiroshi Matsui | 1991-05-07 |
| 4987884 | Electronic endoscope | Hisao Ogiu, Tatsuo Nagasaki | 1991-01-29 |
| 4919520 | Liquid crystal eyeglass | Takao Okada, Takeaki Nakamura, Kazuo Nakamura, Toshihito Kouchi, Hiroyuki Yamamoto +1 more | 1990-04-24 |
| 4916534 | Endoscope | Susumu Takhashi, Tsutomu Igarashi, Atsushi Miyazaki, Akira Hasegawa, Masahiro Chiba +1 more | 1990-04-10 |
| 4895433 | Visual field converting optical system | Susumu Takahashi, Minoru Okabe, Akira Hasegawa | 1990-01-23 |
| 4882619 | High resolution image pickup system with color dispersion means | Akira Hasegawa, Susumu Takahashi, Kiyoshi Tsuji, Hiroshi Matsui | 1989-11-21 |
| 4867136 | Endoscope apparatus | Akira Suzuki, Susumu Takahashi, Takeaki Nakamura, Tatsuya Yamaguchi, Takashi Tsukaya +19 more | 1989-09-19 |
| 4867546 | Objective lens system for an endoscope | Kikumi Tojo, Akira Yokota | 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 |
| 4756605 | Liquid crystal spectacles | Takao Okada, Takeaki Nakamura, Hiroyuki Yamamoto, Toshihito Kouchi, Hideo Tomabechi | 1988-07-12 |