Hideo Ohta
30Patents
12h-index
45Co-inventors
81Inventor score
Filing activity: Aug 28, 1974 → Dec 27, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5641997A | Plastic-encapsulated semiconductor device | Electricity | 336 | Expired |
| USD347731S | Carrying case for a tool | General | 77 | Expired |
| US5038569A | Thermoelectric converter | Electricity | 65 | Expired |
| US4512829A | Process for producing printed circuit boards | Emerging Cross-Sectional Technologies | 31 | Expired |
| US4186692A | Compression ignition internal combustion engine with auxiliary swirl combustion chamber | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5045642A | Printed wiring boards with superposed copper foils cores | Electricity | 22 | Expired |
| US6228688A | Flip-chip resin-encapsulated semiconductor device | Electricity | 19 | Expired |
| US5325583A | Method for manufacturing printed circuit board | Emerging Cross-Sectional Technologies | 17 | Expired |
| US5402098A | Coil | Electricity | 16 | Expired |
| US4156414A | Exhaust gas purifying device for internal combustion engine with auxiliary combustion chamber | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5113478A | Liquid fuel vaporizing apparatus | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US4937097A | Apparatus for and method of screen printing on boards | Electricity | 13 | Expired |
| US5255606A | Drag roller device for printing apparatus | Performing Operations; Transporting | 11 | Expired |
| US4175522A | Exhaust gas recirculation device for internal combustion engine with auxiliary combustion chamber | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5285726A | Offset rotary for color printing system | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5205216A | Inking unit | Performing Operations; Transporting | 9 | Expired |
| US5357864A | Offset printing apparatus with ink storage device | Performing Operations; Transporting | 8 | Expired |
| US4554247A | Silver halide photographic material | Physics | 8 | Expired |
| US5611275A | Width adjusting device and method for a paper web | Performing Operations; Transporting | 8 | Expired |
| US7892694B2 | Electrolytic membrane, process for producing the same, membrane electrode assembly, fuel cell and method of operating the same | Emerging Cross-Sectional Technologies | 6 | Active |
| US5277112A | Ink removing device for a lithographic press and a method for removing ink from a lithographic press | Performing Operations; Transporting | 6 | Expired |
| US5619921A | Width adjusting device and method for a paper web | Performing Operations; Transporting | 5 | Expired |
| US5388513A | Offset rotary for color printing system | Emerging Cross-Sectional Technologies | 5 | Expired |
| US5598778A | Width adjusting device and method for a paper web, and lithographic rotary press having same | Performing Operations; Transporting | 5 | Expired |
| US4100854A | Device for mounting resin plate onto plate cylinder | Performing Operations; Transporting | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.