Ryuichi Ohno
15Patents
3h-index
34Co-inventors
60Inventor score
Filing activity: Oct 3, 1997 → Apr 11, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6014695A | Computer network system for packet-transferring data between computers, network file server in computer network system and data transferring method thereof | Electricity | 61 | Expired |
| US6034962A | Communication method with attaching identifiers to receive request and transmit request | Electricity | 23 | Expired |
| US8841828B2 | Spark plug | Electricity | 7 | Active |
| US7632084B2 | Oilless rotary vane pump having open ends of vane grooves being inclined rearward in the rotation direction | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US9568004B2 | Rotary compressor | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7942648B2 | Air pump | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9482231B2 | Rotary compressor having an oil groove in an inner peripheral surface of a bearing | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9512841B2 | Rotary compressor with oil retaining portion | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10541517B2 | Spark plug for internal combustion engine and method for manufacturing the same | Electricity | 0 | Active |
| US9899805B2 | Method for manufacturing spark plug | Electricity | 0 | Active |
| US10348060B2 | Spark plug | Electricity | 0 | Active |
| US10431960B2 | Spark plug for internal combustion engine | Electricity | 0 | Active |
| US9948067B2 | Spark plug | Electricity | 0 | Active |
| US10530132B2 | Spark plug for internal combustion engine and method for manufacturing the same | Electricity | 0 | Active |
| US8985978B2 | Scroll compressor with bypass holes | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.