Nobuaki Akui
28Patents
13h-index
76Co-inventors
84Inventor score
Filing activity: Sep 6, 1985 → Sep 1, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5577991A | Three-dimensional vision endoscope with position adjustment means for imaging device and visual field mask | Electricity | 254 | Expired |
| US4715360A | Endoscope forceps stopcock | Emerging Cross-Sectional Technologies | 132 | Expired |
| US5588948A | Stereoscopic endoscope | Electricity | 130 | Expired |
| US6398721B1 | Surgical microscope apparatus | Human Necessities | 85 | Expired |
| US4653477A | Endoscope forceps stopcock | Emerging Cross-Sectional Technologies | 55 | Expired |
| US7959561B2 | Endoscope system having rigid endoscope and wiper sheath | Human Necessities | 43 | Active |
| US6985765B2 | Three-dimensional observation apparatus and method of three-dimensional observation | Human Necessities | 43 | Expired |
| US5720706A | Stereoscopic endoscope | Electricity | 42 | Expired |
| US6582358B2 | Stereoscopic endoscope system | Human Necessities | 41 | Expired |
| US4756303A | Insertion section of an endoscope | Performing Operations; Transporting | 38 | Expired |
| US5259365A | Endoscope examination apparatus | Human Necessities | 33 | Expired |
| US5579772A | Surgical microscope system | Physics | 31 | Expired |
| USD326714S | Endoscope for blood vessel | General | 16 | Expired |
| US4732139A | Endoscope with insertion having a plurality of insertion holes | Human Necessities | 9 | Expired |
| US7125378B2 | Hermetically sealed imaging system for medical applications | Human Necessities | 4 | Expired |
| US8953031B2 | Medical device which acquires the picture for observation | Physics | 1 | Active |
| US10231605B2 | Endoscope | Human Necessities | 1 | Active |
| US7854749B2 | Surgical gripper | Human Necessities | 0 | Expired |
| US12422664B2 | Endoscope and manufacturing method for endoscope | Human Necessities | 0 | Active |
| US11992189B2 | Endoscope | Physics | 0 | Active |
| US12035888B2 | Endoscope | Human Necessities | 0 | Active |
| US8926500B2 | Light irradiating device, scanning endoscopic device, manufacturing method of light irradiating device, and manufacturing method of scanning endoscopic device | Emerging Cross-Sectional Technologies | 0 | Active |
| US11992187B2 | Endoscope | Human Necessities | 0 | Active |
| US11751756B2 | Endoscope | Human Necessities | 0 | Active |
| US7794470B2 | Surgical instrument | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.