Ken Yamaguchi
44Patents
17h-index
79Co-inventors
84Inventor score
Filing activity: Sep 8, 1981 → Jul 24, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5332910A | Semiconductor optical device with nanowhiskers | Electricity | 125 | Expired |
| US4769686A | Semiconductor device | Electricity | 115 | Expired |
| US6097036A | Semiconductor logic element and apparatus using thereof | Electricity | 53 | Expired |
| US5101253A | Photo sensor with monolithic differential amplifier | Electricity | 47 | Expired |
| US6060723A | Controllable conduction device | Electricity | 44 | Expired |
| US4469190A | Fuel tank assembly for a motorcycle | Emerging Cross-Sectional Technologies | 43 | Expired |
| US4911494A | Cowling assembly for motorcycles | Performing Operations; Transporting | 41 | Expired |
| US5233205A | Quantum wave circuit | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4509613A | Motorcycle air cleaner arrangement | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4415057A | Rear wheel damper device for motorcycle | Performing Operations; Transporting | 36 | Expired |
| US6211531A | Controllable conduction device | Electricity | 30 | Expired |
| US7942882B2 | Ancillary tool for fitting a humeral component of an elbow prosthesis | Human Necessities | 24 | Active |
| US5268309A | Method for manufacturing a photosensor | Electricity | 23 | Expired |
| US4852678A | Vehicle body frame for motorcycle | Performing Operations; Transporting | 23 | Expired |
| US7699853B2 | Method and instruments for positioning humeral component during shoulder arthroplasty | Human Necessities | 19 | Expired |
| US4660624A | Motorcycle radiator | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4813511A | Motorcycle | Performing Operations; Transporting | 17 | Expired |
| US4516630A | Motorcycle radiator | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4821833A | Motorcycle with swing-arm front suspension | Performing Operations; Transporting | 16 | Expired |
| US4721179A | Double swing-arm motorcycle frame | Performing Operations; Transporting | 16 | Expired |
| USD495396S1 | Rotating fishing flasher | General | 14 | Expired |
| US4605945A | Semiconductor device | Electricity | 14 | Expired |
| US8545504B2 | Method and instruments for positioning humeral component during shoulder arthroplasty | Human Necessities | 13 | Active |
| US4641721A | Motorcycle | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| USRE42805E1 | Elbow prosthesis | General | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.