Masaaki Katayama
32Patents
5h-index
42Co-inventors
69Inventor score
Filing activity: Jan 26, 1990 → Dec 16, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5117321A | Soft magnetic thin film, method for preparing same and magnetic head | Physics | 42 | Expired |
| US5421915A | Method for preparing same and magnetic head | Electricity | 10 | Expired |
| US6238492A | Soft magnetic thin film, method for preparing same and magnetic head | Electricity | 9 | Expired |
| US6291712A | Process for producing saturated aliphatic carboxylic acid amide | Chemistry; Metallurgy | 7 | Expired |
| US5772797A | Soft magnetic thin film, method for preparing same and magnetic head | Electricity | 5 | Expired |
| US10990712B2 | Contact force evaluation method | Emerging Cross-Sectional Technologies | 1 | Active |
| US6183568A | Method for preparing a magnetic thin film | Emerging Cross-Sectional Technologies | 1 | Expired |
| US11104217B2 | In-wheel motor vehicle | Emerging Cross-Sectional Technologies | 1 | Active |
| US8479507B2 | Piston engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US9003787B2 | Control apparatus and control method for stirling engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8763514B2 | Gas lubrication structure for piston, and stirling engine | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12178024B2 | Cooling system with flow rate regulation | Performing Operations; Transporting | 0 | Active |
| US9010118B2 | Output controller for stirling engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US10273890B2 | Internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US10935232B2 | Vibration damping structure for heat-transfer tube bundle | Emerging Cross-Sectional Technologies | 0 | Active |
| US8479506B2 | Piston engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US11966120B2 | Liquid crystal light control element | Physics | 0 | Active |
| US8904779B2 | Stirling engine gas lubrication structure | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10280852B2 | Control apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US11079290B2 | Contact force measurement method | Emerging Cross-Sectional Technologies | 0 | Active |
| US12182483B2 | Method for analyzing vibration damping structure of a tube bundle disposed in a fluid | Physics | 0 | Active |
| US10138829B2 | Control apparatus for internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US8776516B2 | Exhaust heat recovery system | Emerging Cross-Sectional Technologies | 0 | Active |
| US9086032B2 | Stirling engine and engine system comprising stirling engine | Emerging Cross-Sectional Technologies | 0 | Active |
| US10761375B2 | Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display element | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.