Kenji Yamamoto
590Patents
30h-index
700Co-inventors
93Inventor score
Filing activity: Dec 15, 1971 → Aug 18, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7034681B2 | Home security video system using internet technique | Physics | 253 | Expired |
| US6377277B1 | Virtual image generation apparatus and method | Human Necessities | 125 | Expired |
| US4783368A | High heat conductive insulated substrate and method of manufacturing the same | Emerging Cross-Sectional Technologies | 118 | Expired |
| US7189576B2 | Method for measuring substance and testing piece | Emerging Cross-Sectional Technologies | 118 | Expired |
| US7153696B2 | Method for measuring substance and testing piece | Emerging Cross-Sectional Technologies | 116 | Expired |
| US4528072A | Process for manufacturing hollow multilayer printed wiring board | Emerging Cross-Sectional Technologies | 103 | Expired |
| US5764613A | optical pickup apparatus | Physics | 91 | Expired |
| US7564198B2 | Device and method for driving LED | Emerging Cross-Sectional Technologies | 78 | Active |
| US6824601B2 | Hard film for cutting tools, cutting tool coated with hard film, process for forming hard film, and target used to form hard film | Emerging Cross-Sectional Technologies | 77 | Expired |
| US5802179A | Information processor having two-dimensional bar code processing function | Physics | 65 | Expired |
| US4969025A | Amorphous silicon photosensor with oxygen doped layer | Emerging Cross-Sectional Technologies | 63 | Expired |
| US5134191A | Hard coating compositions and plastic optical articles | Chemistry; Metallurgy | 62 | Expired |
| US7548698B2 | Light communication system and illumination apparatus therefor | Electricity | 61 | Active |
| US5844060A | Organopolysiloxane resin, production method thereof, and curable organopolysiloxane resin composition using the same | Chemistry; Metallurgy | 47 | Expired |
| US5991719A | Semantic recognition system | Physics | 45 | Expired |
| US4443893A | Goggles for ski use | Emerging Cross-Sectional Technologies | 45 | Expired |
| USD784869S1 | Front bumper for automobile | General | 42 | Active |
| US5500424A | Pyrimidine and pyridine derivatives, their production and use | Chemistry; Metallurgy | 41 | Expired |
| US5728941A | Misfire detecting apparatus using difference in engine rotation speed variance | Physics | 39 | Expired |
| US5066720A | Resinous composition for coating use | Chemistry; Metallurgy | 39 | Expired |
| US5366261A | Pipe joint with a gasket retainer | Emerging Cross-Sectional Technologies | 37 | Expired |
| US5712842A | Optical pick-up device | Physics | 37 | Expired |
| US6097688A | Recording/reproducing apparatus and recording/reproducing method for optical recording media | Physics | 37 | Expired |
| US5295662A | Fluid flow-controller with improved diaphragm | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US8335353B2 | Biometrics authentication system | Physics | 33 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.