Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9933610 | Oblique-viewing objective optical system and endoscope for oblique viewing using the same | — | 2018-04-03 |
| 9775494 | Oblique-viewing objective optical system and endoscope for oblique viewing using the same | — | 2017-10-03 |
| 8743186 | Focal depth expansion device | Toyoharu Hanzawa, Makoto Tomioka | 2014-06-03 |
| 8582218 | Endoscope for oblique viewing | Daisuke Akiyama | 2013-11-12 |
| 7324292 | Illumination optical system, illumination apparatus using the illumination optical system, and observation system provided with the illumination optical system or the illumination apparatus | — | 2008-01-29 |
| 5555129 | Optical low pass filter | Mitsujiro Konno, Katsuya Ono, Shinya Matsumoto, Kimihiko Nishioka | 1996-09-10 |
| 5471343 | Imaging device | — | 1995-11-28 |
| 5392067 | TV system for endoscopes | Mitsujiro Konno, Katsuya Ono, Kimihiko Nishioka | 1995-02-21 |
| 5270825 | Imaging optical system having a moire elimination effect | Akira Hasegawa | 1993-12-14 |
| 5245475 | Imaging optical system for endoscopes | — | 1993-09-14 |
| 5050974 | Optical system for endoscopes | Hiroyuki Fukuda | 1991-09-24 |