Kiyotaka Hayashi
20Patents
9h-index
50Co-inventors
78Inventor score
Filing activity: Apr 19, 1979 → Aug 26, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6157162A | Battery charging apparatus for electric vehicles | Emerging Cross-Sectional Technologies | 133 | Expired |
| US4976170A | Method for controlling stepless automatic transmission and apparatus therefor | Emerging Cross-Sectional Technologies | 52 | Expired |
| US5253730A | Power steering apparatus | Performing Operations; Transporting | 41 | Expired |
| US5076383A | Steering damper device | Performing Operations; Transporting | 39 | Expired |
| US4554990A | Anti-slip system for wheeled vehicle | Performing Operations; Transporting | 31 | Expired |
| US6774478B2 | Stacked semiconductor package | Electricity | 27 | Expired |
| US5796224A | Control system for electric vehicle | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4716791A | Infinitely variable transmission utilizing hydraulic fluid pressure to vary velocity ratio between driving and driven pulleys | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4673379A | Infinitely variable transmission | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5462905A | Exhaust gas purifying catalyst | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4542506A | Control system having a self-diagnostic function | Physics | 8 | Expired |
| US4936813A | Chain belt for V pulleys | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4283706A | Puncture detecting device | Performing Operations; Transporting | 4 | Expired |
| US4679677A | Hydraulic type starting clutch | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4612003A | Hydraulic servomechanism | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US10732863B2 | Memory system storing block protection information | Physics | 2 | Active |
| US4612002A | Device for controlling pinch force of a pulley in an infinitely variable transmission | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7071719B2 | Semiconductor device | Physics | 1 | Expired |
| US5690580A | Neutral apparatus for electric vehicle | Emerging Cross-Sectional Technologies | 0 | Expired |
| US12182399B2 | Memory system and control method based on quad-serial peripheral interface (SPI) controller with external memory system based on SPI standard | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.