Yoshitaka Kojima
35Patents
13h-index
93Co-inventors
84Inventor score
Filing activity: May 12, 1982 → Oct 10, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5630314A | Thermal stress relaxation type ceramic coated heat-resistant element | Emerging Cross-Sectional Technologies | 55 | Expired |
| US5840434A | Thermal stress relaxation type ceramic coated heat-resistant element and method for producing the same | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4873150A | High water-resistant member, and valve gear using the same for use in internal combustion engine | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5209645A | Ceramics-coated heat resisting alloy member | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4966820A | Ceramics-coated heat resisting alloy member | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5203984A | Monitoring system for plant operation condition and its in-situ electrochemical electrode | Emerging Cross-Sectional Technologies | 21 | Expired |
| US6042951A | Ceramic-coated blade of gas turbine and method of producing same | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5507623A | Alloy-coated gas turbine blade and manufacturing method thereof | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5756130A | Stamper for producing recording medium | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5852266A | Vacuum circuit breaker as well as vacuum valve and electric contact used in same | Electricity | 15 | Expired |
| US5557083A | Vacuum circuit breaker and electric contact | Electricity | 14 | Expired |
| US6521293B1 | Method for producing a ceramic-coated blade of gas turbine | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6248969A | Vacuum circuit breaker, and vacuum bulb and vacuum bulb electrode used therefor | Electricity | 13 | Expired |
| US5009070A | Combustion apparatus for gas turbine | Mechanical Engineering; Lighting; Heating | 12 | Expired |
| US6452101B1 | Multi-core conductive wire and a method of manufacturing the same | Performing Operations; Transporting | 11 | Expired |
| US5697150A | Method forming an electric contact in a vacuum circuit breaker | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4777396A | Rotor of induction motor | Electricity | 9 | Expired |
| US4486462A | Method for coating by glow discharge | Chemistry; Metallurgy | 9 | Expired |
| US5691521A | Vacuum circuit breaker with improved contact assembly | Electricity | 8 | Expired |
| US5545484A | Heat and oxidation resistive high strength material and its production method | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5242264A | Machine on ground provided with heat resistant wall used for isolating from environment and heat resistant wall used therefor | Emerging Cross-Sectional Technologies | 8 | Expired |
| US6048216A | Vacuum circuit breaker as well as vacuum valve and electric contact used in same | Electricity | 7 | Expired |
| US9822659B2 | Gas turbine with honeycomb seal | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US7162354B2 | Apparatus and method for determining date of gas turbine washing | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7286966B2 | Rotation planning apparatus and rotation planning system | Emerging Cross-Sectional Technologies | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.