Kazuhiko Yoshida
70Patents
13h-index
105Co-inventors
87Inventor score
Filing activity: Sep 16, 1974 → Dec 7, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5293427A | Eye position detecting system and method therefor | Physics | 89 | Expired |
| US5218387A | Eye position detecting apparatus | Physics | 52 | Expired |
| US5621601A | Over-current protection apparatus for transistor | Electricity | 43 | Expired |
| US5587655A | Constant current circuit | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5803993A | Outer ring for high strength constant velocity joint and production process for same | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5657964A | Electric power tool for driving jack | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6229180A | MOS type semiconductor apparatus | Electricity | 21 | Expired |
| US6478682B1 | Constant velocity universal joint | Emerging Cross-Sectional Technologies | 20 | Expired |
| US6390924B1 | Power transmission shaft and constant velocity joint | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6087803A | Battery pack, electronic equipment system and method of detecting loading of battery pack technical field | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6319337A | Power transmission shaft | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6287209A | Propeller shaft and method of producing the same | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6977425B2 | Semiconductor device having a lateral MOSFET and combined IC using the same | Electricity | 14 | Expired |
| US5853502A | Carburizing steel and steel products manufactured making use of the carburizing steel | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6462382B2 | MOS type semiconductor apparatus | Electricity | 12 | Expired |
| US4016205A | Process for the optical resolution of DL-2-(4-hydroxyphenyl)glycine | Chemistry; Metallurgy | 12 | Expired |
| US7263904B2 | Torque-detecting device | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6135891A | Constant velocity universal joint | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6126897A | Carburizing steel and steel products manufactured making use of the carburizing steel | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6870223B2 | High power semiconductor device having a Schottky barrier diode | Electricity | 10 | Expired |
| US6685572B2 | Power transmission mechanism | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5707043A | Electric power tool for driving jack | Performing Operations; Transporting | 8 | Expired |
| US7052400B2 | Constant velocity universal joint | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6268628A | Depletion type MOS semiconductor device and MOS power IC | Electricity | 8 | Expired |
| US5811996A | Gate drive circuit having reduced current-consumption and rapid inductive energy dissipation | Electricity | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.