Ryosuke Hiyoshi
44Patents
9h-index
26Co-inventors
71Inventor score
Filing activity: Mar 22, 2001 → Sep 27, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6647935B2 | Reciprocating internal combustion engine | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US6691655B2 | Control system and method for an internal combustion engine | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6792924B2 | Engine control system of internal combustion engine with variable compression ratio mechanism and exhaust-gas recirculation control system | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6915766B2 | Compression ratio controlling apparatus and method for spark-ignited internal combustion engine | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6622670B2 | Piston crank mechanism of reciprocating internal combustion engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6732682B2 | Control system and method for an internal combustion engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6684828B2 | Variable compression ratio mechanism for reciprocating internal combustion engine | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6546900B2 | Variable compression ratio mechanism for reciprocating internal combustion engine | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6615773B2 | Piston control mechanism of reciprocating internal combustion engine of variable compression ratio type | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6595186B2 | Control system and method for an internal combustion engine | Emerging Cross-Sectional Technologies | 9 | Expired |
| US8087390B2 | Multi-link variable compression ratio engine | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US9476354B2 | Drive apparatus constructed to detect ratcheting in wave motion gearing speed reducer | Mechanical Engineering; Lighting; Heating | 8 | Active |
| US6990934B2 | Internal combustion engine having variable compression ratio mechanism and control method therefor | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7168402B2 | Intake valve control apparatus and method for an internal combustion engine | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7165517B2 | Control apparatus and method for internal combustion engine with variable compression ratio mechanism | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7334547B2 | Variable expansion-ratio engine | Emerging Cross-Sectional Technologies | 7 | Active |
| US6920847B2 | Reciprocating engine with a variable compression ratio mechanism | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US7681538B2 | Internal combustion engine employing variable compression ratio mechanism | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US6877463B2 | Link mechanism of reciprocating internal combustion engine | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US7210450B2 | Intake control apparatus and method for internal combustion engine | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8397683B2 | Variable compression ratio device for internal combustion engine | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US9476366B2 | Control device and control method for variable compression ratio internal combustion engines | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US7640901B2 | Intake control apparatus for an engine and method | Emerging Cross-Sectional Technologies | 4 | Active |
| US8844479B2 | Variable compression ratio engine | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7753013B2 | Variable compression ratio control method for variable compression ratio engine, and variable compression ratio engine | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.