Motokazu Nakamura
13Patents
8h-index
37Co-inventors
68Inventor score
Filing activity: Mar 25, 1993 → Oct 12, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5658238A | Endoscope apparatus capable of being switched to a mode in which a curvature operating lever is returned and to a mode in which the curvature operating lever is not returned | Human Necessities | 1,462 | Expired |
| US5469840A | Electromotive warping type endoscope with velocity control | Human Necessities | 142 | Expired |
| US8221304B2 | Operation microscope | Human Necessities | 89 | Expired |
| US6398721B1 | Surgical microscope apparatus | Human Necessities | 85 | Expired |
| US5743847A | Stereoscopic endoscope having image transmitting optical-system and pupil dividing unit that are axially movable with respect to each other | Human Necessities | 63 | Expired |
| US5460166A | Endoscope of an endoscope cover system wherein, at the time of the maximum curvature, a fluid tube path will be curved as twisted so as to move to the side on which the radius of curvature will become larger | Human Necessities | 55 | Expired |
| US5609563A | Endoscope apparatus provided with curvature and fluid flow control | Human Necessities | 35 | Expired |
| US7050225B2 | Superimposing microscope having image pickup | Physics | 32 | Expired |
| US7283296B2 | Surgical microscope | Human Necessities | 3 | Active |
| US8265734B2 | Imaging and displaying system with imaging unit and display unit which are supported by movable arm | Human Necessities | 2 | Active |
| US7724428B2 | Operating microscope having an arm frame | Human Necessities | 2 | Active |
| US8858423B2 | Endoscope holding apparatus | Human Necessities | 1 | Active |
| US7639421B2 | Operating microscope having an arm frame | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.