Katsuhiko Sakamoto
32Patents
11h-index
64Co-inventors
78Inventor score
Filing activity: Nov 29, 1982 → Dec 12, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4474197A | Coin transfer apparatus | Physics | 57 | Expired |
| US4716871A | Intake system for engine | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6357288B1 | Failure diagnosis system for evaporation control system | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5503493A | Joint structure for synthetic resin structural members | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6765029B2 | Method for production of porous cross-linked polymer sheet | Chemistry; Metallurgy | 18 | Expired |
| US5996400A | Diagnostic system for detecting leakage of fuel vapor from purge system | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US5062809A | High-frequency connector and method of manufacturing thereof | Electricity | 17 | Expired |
| US5222465A | Valve timing control system for engine | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5181484A | Cam timing control device for automotive engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6395792B1 | Method for production of porous cross-linked poymer | Chemistry; Metallurgy | 13 | Expired |
| US6035835A | Valve operation verification system for verifying valve operation of valve disposed in hot gas flow passage | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US9954408B2 | Motor stator with improved connection member | Electricity | 11 | Active |
| US6830461B2 | Electrical contact and electrical connection device using same | Electricity | 11 | Expired |
| US6362243B1 | Method for production of porous cross-linked polymer | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4805574A | Ignition timing control system for an internal combustion engine | Emerging Cross-Sectional Technologies | 10 | Expired |
| US6750263B2 | Method for production of porous cross-linked polymer | Chemistry; Metallurgy | 8 | Expired |
| US7001548B2 | Method for manufacture of porous product from molded high internal phase emulsion | Performing Operations; Transporting | 8 | Expired |
| US6478596B2 | Semiconductor component mounting apparatus | Electricity | 8 | Expired |
| US5658508A | Method for continuously forming a synthetic stone | Performing Operations; Transporting | 6 | Expired |
| US6730712B2 | Method of manufacturing porous cross-linked polymer sheet | Chemistry; Metallurgy | 6 | Expired |
| US6184698A | Semiconductor component mounting apparatus | Electricity | 6 | Expired |
| US9601960B2 | Rotating electrical machine with biased bobbin | Electricity | 5 | Active |
| US9698443B2 | Electrolyte sheet for solid oxide fuel cell, method for producing the same, and single cell for solid oxide fuel cell including the same | Emerging Cross-Sectional Technologies | 5 | Active |
| US5936152A | System for detecting functional abnormalities of idle speed control system | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6398570B1 | Semiconductor component mounting apparatus | Electricity | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.