Kei Kobayashi
63Patents
8h-index
109Co-inventors
81Inventor score
Filing activity: Dec 1, 1981 → Jul 18, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8877376B2 | Electrode for secondary battery, slurry for secondary battery electrode, and secondary battery | Emerging Cross-Sectional Technologies | 17 | Active |
| US4426162A | Rotor shaft | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6823724B1 | Method and apparatus for measuring values of physical property | Emerging Cross-Sectional Technologies | 16 | Expired |
| US6077615A | Gas turbine nozzle, power generation gas turbine, co-base alloy and welding material | Emerging Cross-Sectional Technologies | 15 | Expired |
| US8536862B2 | Apparatus and method of obtaining field by measurement | Physics | 14 | Active |
| US5801833A | Method of producing master and working pattern plates for etching and photolithographic apparatus therefor | Physics | 12 | Expired |
| US4497670A | Rotor shaft and manufacturing method thereof | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US8100771B2 | Game device, server device, game process control method, and information storage medium | Human Necessities | 8 | Active |
| US8277969B2 | Lithium ion secondary battery | Emerging Cross-Sectional Technologies | 7 | Active |
| US8497695B2 | Semiconductor device with fault detection function | Electricity | 7 | Active |
| US8128351B2 | Seals in steam turbine | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US10033042B2 | Positive electrode for secondary battery, and secondary battery | Emerging Cross-Sectional Technologies | 6 | Active |
| US6100785A | Voltage nonlinear resistor and lightning arrester | Electricity | 5 | Expired |
| US9744330B2 | Tinnitus treatment system and method | Electricity | 5 | Active |
| US9601775B2 | Binder composition for secondary battery positive electrode, slurry composition for secondary battery positive electrode, secondary battery positive electrode, and secondary battery | Emerging Cross-Sectional Technologies | 4 | Active |
| US9808715B2 | Interactive gaming system | Human Necessities | 4 | Active |
| US9263733B2 | Anode for use in a lithium-ion secondary battery, and lithium-ion secondary battery | Emerging Cross-Sectional Technologies | 3 | Active |
| US5910761A | Voltage-dependent non-linear resistor member, method for producing the same and arrester | Electricity | 3 | Expired |
| US8107857B2 | Fixing device and image forming apparatus | Physics | 3 | Active |
| US5807510A | Electric resistance element exhibiting voltage nonlinearity characteristic and method of manufacturing the same | Electricity | 3 | Expired |
| US8500397B2 | Seals in steam turbine | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US7829863B2 | Electron beam irradiation device | Electricity | 2 | Active |
| US6330135A | Magneto-resistance effect element based on a ferromagnetic oxide thin film on a stepped layer oxide | Electricity | 2 | Expired |
| US5500326A | Method of producing master and working pattern plates for etching and photolithographic apparatus therefor | Physics | 2 | Expired |
| US10113030B2 | Resist material and pattern forming method using same | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.