Shinichi Nishigaki
23Patents
17h-index
76Co-inventors
80Inventor score
Filing activity: Jun 29, 1981 → Feb 25, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6099537A | Medical treatment instrument | Human Necessities | 2,339 | Expired |
| US4867138A | Rigid electronic endoscope | Human Necessities | 211 | Expired |
| US5112330A | Resectoscope apparatus | Human Necessities | 210 | Expired |
| US5423848A | Trocar | Human Necessities | 206 | Expired |
| US4905082A | Rigid video endoscope having a detachable imaging unit | Human Necessities | 122 | Expired |
| US4901142A | Video scope system | Electricity | 86 | Expired |
| US4862872A | Endoscope and endoscope washing apparatus | Emerging Cross-Sectional Technologies | 75 | Expired |
| US5007907A | Resectoscope apparatus | Human Necessities | 72 | Expired |
| US5051824A | Electronic scope having detachable frame to which solid state imaging device is fastened | Electricity | 69 | Expired |
| USD271618S | Adaptor for endoscope | General | 50 | Expired |
| US4803550A | Imaging apparatus having illumination means | Electricity | 45 | Expired |
| US4879992A | Rigid electronic endoscope | Human Necessities | 42 | Expired |
| US4991957A | Borescope apparatus | Human Necessities | 37 | Expired |
| US5088998A | Resectoscope apparatus | Human Necessities | 34 | Expired |
| US5259365A | Endoscope examination apparatus | Human Necessities | 33 | Expired |
| US4994062A | Resectoscope apparatus | Human Necessities | 30 | Expired |
| US5096292A | Borescope apparatus | Physics | 25 | Expired |
| USD275226S | Endoscope heater | General | 14 | Expired |
| USD275228S | Pipe in heater for heating endoscope | General | 13 | Expired |
| US4711999A | Apparatus for photometrically detecting an optically focused condition of an optical system | Physics | 7 | Expired |
| US5048956A | Borescope apparatus | Physics | 6 | Expired |
| USD279604S | Tubular insert for an endoscope telescope heater | General | 3 | Expired |
| US4556787A | Photosensor for optical observing or photographing devices | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.