Kaoru Yamazaki
49Patents
8h-index
79Co-inventors
78Inventor score
Filing activity: Dec 22, 1977 → Dec 14, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4725345A | Method for forming a hard carbon thin film on article and applications thereof | Emerging Cross-Sectional Technologies | 131 | Expired |
| US5253301A | Nondirectional acoustic generator and speaker system | Electricity | 43 | Expired |
| US4772513A | Method for forming a hard carbon thin film on article and applications thereof | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6673415B1 | Honeycomb core material for sandwich structure and method for manufacturing the same | Emerging Cross-Sectional Technologies | 35 | Expired |
| US5594805A | Loudspeaker | Electricity | 29 | Expired |
| US5113277A | Fiber optic distributed temperature sensor system | Physics | 28 | Expired |
| US4752963A | Electroacoustic converter having a recessed step on the center pole | Electricity | 20 | Expired |
| US11340425B2 | Camera optical lens | Electricity | 10 | Active |
| US4413703A | Bass-reflex type speaker system | Electricity | 8 | Expired |
| US4799266A | Electroacoustic converter | Electricity | 7 | Expired |
| US9093679B2 | Method of shutting down fuel cell system | Emerging Cross-Sectional Technologies | 4 | Active |
| US4524193A | Modacrylic synthetic fiber having an excellent devitrification preventing property and a process for preparing the same | Textiles; Paper | 3 | Expired |
| US4513126A | Acrylonitrile polymer, process for the preparation thereof and fiber prepared therefrom | Chemistry; Metallurgy | 3 | Expired |
| US8613821B2 | Basic metal nitrate, process for producing the same and gas generating agent composition | Chemistry; Metallurgy | 1 | Active |
| US11262534B2 | Camera optical lens | Electricity | 1 | Active |
| US9401520B2 | Fuel cell system and method for stopping operation of fuel cell system | Emerging Cross-Sectional Technologies | 1 | Active |
| US10942338B2 | Imaging lens | Physics | 1 | Active |
| US9786935B2 | Fuel cell system and fuel cell system control method | Emerging Cross-Sectional Technologies | 1 | Active |
| US11480766B2 | Camera lens | Physics | 0 | Active |
| US11243383B2 | Camera optical lens comprising seven lenses of +−−+−+− refractive powers | Physics | 0 | Active |
| US11428901B2 | Camera lens of catadioptric optical system | Physics | 0 | Active |
| US11460665B2 | Camera optical lens | Electricity | 0 | Active |
| US11287616B2 | Camera optical lens including seven lenses of +−−+−+− or +−+−++− refractive powers | Physics | 0 | Active |
| US11092776B2 | Imaging lens | Physics | 0 | Active |
| US7678204B2 | Good-workability and high-strength cold-rolled steel sheet excellent in post-painting corrosion resistance | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.