Yoshikazu Ishikawa
72Patents
18h-index
59Co-inventors
87Inventor score
Filing activity: Apr 17, 1974 → Apr 19, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD570868S1 | Computer generated image for a display panel or screen | General | 664 | Expired |
| US5040114A | Method of controlling continuously variable transmission in combination with engine throttle control | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| USD585904S1 | Computer generated image for a display panel or screen | General | 42 | Expired |
| US4787353A | Throttle valve control apparatus for an internal combustion engine mounted on a vehicle | Mechanical Engineering; Lighting; Heating | 41 | Expired |
| US6511143B1 | Complementary recording system using multi-scan | Physics | 40 | Expired |
| US4765296A | Throttle valve control for internal combustion engine | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US4881428A | Throttle valve control apparatus for internal combustion engine | Mechanical Engineering; Lighting; Heating | 32 | Expired |
| US5218540A | Method of controlling continuously variable transmission in combination with engine throttle control | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4329968A | Oil separating system for blowby gas | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4860708A | Throttle control system for automotive internal combustion engine | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| USD585905S1 | Computer generated image for a display panel or screen | General | 28 | Expired |
| US4781162A | Throttle valve control system for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US6263162A | Image-shake preventing apparatus | Physics | 26 | Expired |
| USD563989S1 | Computer generated image for a display panel or screen | General | 23 | Expired |
| US5277286A | Method of controlling automatic clutch for motor vehicles | Emerging Cross-Sectional Technologies | 23 | Expired |
| USD563983S1 | Computer generated image for a display panel or screen | General | 20 | Expired |
| USD589976S1 | Computer generated image for a display panel or screen | General | 19 | Expired |
| US4791902A | Throttle valve control system for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4976169A | Method of controlling speed reduction ratio for a continuously variable transmissions | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4799467A | Throttle valve control system for an internal combustion engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4856417A | Trunk piston for use in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US5754428A | Method of controlling speed reduction ratio in a continuously variable transmission | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4961315A | Method of controlling speed reduction ratio of continuously variable speed transmission | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4129043A | Accessory drive | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6305876A | Material and construction method of prevention of scour for the underwater structure | Emerging Cross-Sectional Technologies | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.