Toshio Ohara
19Patents
13h-index
47Co-inventors
74Inventor score
Filing activity: Dec 13, 1983 → Dec 13, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6178292A | Core unit of heat exchanger having electric heater | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US4570700A | Flat, multi-luminal tube for cross-flow-type indirect heat exchanger, having greater outer wall thickness towards side externally subject to corrosive inlet gas such as wet, salty air | Emerging Cross-Sectional Technologies | 59 | Expired |
| US5529652A | Method of manufacturing continuous fiber-reinforced thermoplastic prepregs | Performing Operations; Transporting | 48 | Expired |
| US5651268A | Refrigerant evaporator | Mechanical Engineering; Lighting; Heating | 44 | Expired |
| US6272881A | Refrigerant evaporator and manufacturing method for the same | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US4696342A | Plate-type heat exchanger | Emerging Cross-Sectional Technologies | 33 | Expired |
| US4723601A | Multi-layer type heat exchanger | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5222551A | Laminate-type heat exchanger | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US4830101A | Aluminum heat exchanger and method for producing aluminum heat exchanger | Mechanical Engineering; Lighting; Heating | 25 | Expired |
| US5448899A | Refrigerant evaporator | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4732311A | Process of producing lightweight and corrosion-resistant heat exchanger | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US5390507A | Refrigerant evaporator | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US6308527A | Refrigerant evaporator with condensed water drain structure | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5720340A | Laminated type heat exchanger | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5524455A | Evaporator for cooling units | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US4926932A | Plate type heat exchanger | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4936108A | Vapor pressure-adjusting valve and refrigeration system using same | Emerging Cross-Sectional Technologies | 3 | Expired |
| US4870834A | Vapor pressure-adjusting valve and refrigeration system using same | Emerging Cross-Sectional Technologies | 2 | Expired |
| US5778974A | Laminated type heat exchanger having small flow resistance | Emerging Cross-Sectional Technologies | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.