Atsushi Ohmi
21Patents
7h-index
16Co-inventors
62Inventor score
Filing activity: Nov 27, 1973 → Jan 10, 1990
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4472997A | Brake power multiplying device for automobile brake system | Performing Operations; Transporting | 18 | Expired |
| US4257312A | Tandem diaphragm brake booster | Performing Operations; Transporting | 15 | Expired |
| US4173172A | Tandem brake booster | Performing Operations; Transporting | 12 | Expired |
| US4409460A | Method of manufacturing a vacuum booster housing | Performing Operations; Transporting | 12 | Expired |
| US4567728A | Mounting structure for clutch booster assembly | Performing Operations; Transporting | 11 | Expired |
| US4354423A | Reaction structure of booster | Performing Operations; Transporting | 8 | Expired |
| US4192345A | Sealed type hydraulic reservoir | Emerging Cross-Sectional Technologies | 8 | Expired |
| US3974741A | Brake booster | Performing Operations; Transporting | 7 | Expired |
| US4938331A | Fluid coupling for engine cooling system | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4936742A | Water pump apparatus having lubricating oil circulation and axial thrust support | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US4271670A | Power assist mechanism | Performing Operations; Transporting | 7 | Expired |
| US4181147A | Sealed type hydraulic reservoir | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4917052A | Water pump apparatus in an internal combustion engine | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4066997A | Fluid level indicator for tandem master cylinder | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4232518A | Sealed type fluid reservoir | Emerging Cross-Sectional Technologies | 5 | Expired |
| US4998607A | Fluid coupling having damped bimetallic spring | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US4423666A | Brake booster | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US3938424A | Brake servo-motor | Performing Operations; Transporting | 3 | Expired |
| US4363259A | Brake booster | Performing Operations; Transporting | 1 | Expired |
| US4368661A | Control valve for brake booster | Emerging Cross-Sectional Technologies | 1 | Expired |
| US4445425A | Housing shells of fluid pressure motors | Performing Operations; Transporting | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.