Hiroaki Kato
182Patents
26h-index
245Co-inventors
93Inventor score
Filing activity: Oct 26, 1977 → Nov 15, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5054887A | Active matrix type liquid crystal display | Physics | 96 | Expired |
| US5544482A | Exhaust gas-purifying system for internal combustion engines | Emerging Cross-Sectional Technologies | 78 | Expired |
| US5231039A | Method of fabricating a liquid crystal display device | Physics | 68 | Expired |
| US5036370A | Thin film semiconductor array device | Electricity | 55 | Expired |
| US5469025A | Fault tolerant active matrix display device | Physics | 52 | Expired |
| US4935792A | Thin film transistor array | Electricity | 51 | Expired |
| US5555725A | Control system for electrically heated catalyst of internal combustion engine | Emerging Cross-Sectional Technologies | 47 | Expired |
| US4264150A | Electrochromic display with lyophilic treatment separator | Physics | 43 | Expired |
| US6170622A | Anti-vibration apparatus and anti-vibration method thereof | Physics | 42 | Expired |
| US4469568A | Method for making thin-film transistors | Emerging Cross-Sectional Technologies | 42 | Expired |
| US5390052A | Method of recording/reproducing table of contents in digital magnetic tape recording/reproducing apparatus | Physics | 41 | Expired |
| US6021991A | Active anti-vibration apparatus | Mechanical Engineering; Lighting; Heating | 41 | Expired |
| US5302987A | Active matrix substrate including connecting electrode with extended portion | Physics | 40 | Expired |
| US5763977A | Motor vehicle alternator and system for controlling the same | Electricity | 40 | Expired |
| US7600762B2 | Suspension control device | Performing Operations; Transporting | 39 | Expired |
| US5212574A | Active matrix board having double-layer scan lines and capacity lines with discontinuous lower scan lines and lower capacity lines | Physics | 38 | Expired |
| US4385292A | Segmented type liquid crystal display and driving method thereof | Physics | 37 | Expired |
| US5164851A | Active matrix display device having spare switching elements connectable to divisional subpixel electrodes | Physics | 37 | Expired |
| US5335102A | Liquid crystal display element and method for treating defective pixels therein | Physics | 36 | Expired |
| US4310220A | Electrochromic display with one porous separator | Physics | 35 | Expired |
| US5463230A | Active matrix board | Physics | 33 | Expired |
| US5102361A | Method for the manufacture of active matrix display apparatuses | Physics | 33 | Expired |
| US5076666A | Active matrix display apparatus with drain electrode extensions | Physics | 30 | Expired |
| US5151807A | Active matrix substrate and active matrix display apparatus | Physics | 30 | Expired |
| US5852929A | Failure detection system of exhaust secondary air supply system of internal combustion engine | Emerging Cross-Sectional Technologies | 28 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.