Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7982949 | Operation microscope having assistant's microscope | — | 2011-07-19 |
| 6937390 | Operation microscope apparatus | Hiroshi Akiyama | 2005-08-30 |
| 5543962 | Binocular stereoscopic microscope | Nobuaki Kitajima | 1996-08-06 |
| 5446582 | Operation microscope | Nobuaki Kitajima | 1995-08-29 |
| 5270747 | Stereomicroscope with first and second illuminating systems | Nobuaki Kitajima | 1993-12-14 |
| 5140458 | Optical illuminating and observing apparatus | Nobuaki Kitazima, Yoshitaka Torii | 1992-08-18 |
| 5135299 | Surgical operation microscope | Nobuaki Kitajima | 1992-08-04 |
| 5067804 | Microscope | Nobuaki Kitajima | 1991-11-26 |
| 5015081 | Binocular microscope | Nobuaki Kitajima | 1991-05-14 |
| 4932774 | Illuminating system of ophthalmological instrument | Nobuaki Kitajima, Kazuo Nunokawa | 1990-06-12 |
| 4855875 | Light source device for medical apparatus | Jun Onose, Fukuichi Adachi | 1989-08-08 |
| 4818068 | Slit apparatus | — | 1989-04-04 |
| 4810083 | Binocular indirect ophthalmoscope | Kohichi Okada | 1989-03-07 |
| 4793700 | Gaze-fixing device for surgical microscope | Nobuaki Kitajima | 1988-12-27 |
| 4783159 | Operation microscope | Nobuaki Kitajima | 1988-11-08 |
| 4702570 | Stereo-microscope with two observation optical systems each including a right angle prism and a roof right angle prism providing both rotation and relative separation adjustments | Hisakazu Yoshino, Shinichi Nishimura | 1987-10-27 |
| 4632528 | Method for determining refractive index of an object | Hisakazu Yoshino, Yoshitaka Torii | 1986-12-30 |
| 4601550 | Stereo-microscope with a common objective lens system | Hisakazu Yoshino, Shinichi Nishimura | 1986-07-22 |
| 4597650 | Specular microscope | Hisakazu Yoshino | 1986-07-01 |