Ken Hamada
22Patents
5h-index
26Co-inventors
69Inventor score
Filing activity: Jul 31, 1985 → Dec 15, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7207187B2 | Inverter-integrated motor for an automotive vehicle | Electricity | 55 | Expired |
| US5475670A | Deflection plate for optical pick-up device | Physics | 33 | Expired |
| US5739671A | Device for accurate detection of remaining discharge capacities of a plurality of batteries | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4675074A | Method of manufacturing semiconductor device | Electricity | 20 | Expired |
| US4731792A | Semiconductor laser device with decreased light intensity noise | Electricity | 14 | Expired |
| US7264674B2 | Method for pulling a single crystal | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7442251B2 | Method for producing silicon single crystals and silicon single crystal produced thereby | Chemistry; Metallurgy | 3 | Expired |
| US4745611A | Buried twin ridge substrate laser | Electricity | 3 | Expired |
| US9720866B2 | Interface circuit executing protocol control in compliance with first and second interface standards | Physics | 2 | Active |
| US9284660B2 | Apparatus of producing silicon single crystal and method of producing silicon single crystal | Emerging Cross-Sectional Technologies | 2 | Active |
| US6284041A | Process for growing a silicon single crystal | Chemistry; Metallurgy | 2 | Expired |
| US8968468B2 | Method of controlling single crystal diameter | Emerging Cross-Sectional Technologies | 1 | Active |
| US10066313B2 | Method of producing single crystal | Chemistry; Metallurgy | 1 | Active |
| US9567692B2 | Silicon single crystal manufacturing apparatus and silicon single crystal manufacturing method | Emerging Cross-Sectional Technologies | 1 | Active |
| US4716571A | A high-output semiconductor laser of dove tail groove type | Electricity | 0 | Expired |
| US9959611B2 | Method and apparatus for manufacturing single crystal | Physics | 0 | Active |
| US9708731B2 | Method of producing silicon single crystal | Emerging Cross-Sectional Technologies | 0 | Active |
| US9816199B2 | Method of manufacturing single crystal | Physics | 0 | Active |
| US7819972B2 | Method for growing silicon single crystal and method for manufacturing silicon wafer | Chemistry; Metallurgy | 0 | Active |
| US7473314B2 | Method for growing silicon single crystal | Chemistry; Metallurgy | 0 | Expired |
| US10472733B2 | Silicon single crystal manufacturing method | Emerging Cross-Sectional Technologies | 0 | Active |
| US9145620B2 | Single crystal pulling apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.