Chikara Murakami
49Patents
8h-index
32Co-inventors
75Inventor score
Filing activity: Oct 30, 1985 → Jan 13, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4652780A | Magnetic bearing device | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US4885491A | Unstable vibration prevention apparatus for magnetic bearing system | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US6213737A | Damper device and turbomolecular pump with damper device | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6212540A | Filter circuit | Electricity | 11 | Expired |
| US4920290A | Active magnetic bearing apparatus | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US5736801A | Filter circuit and control circuit for controlling a rotor | Electricity | 9 | Expired |
| US5754425A | Digital control method and apparatus for rotary member supported by magnetic bearing | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5194805A | Inductance-type displacement sensor for eliminating inaccuracies due to external magnetic fields | Physics | 8 | Expired |
| US10361458B2 | Laminated body | Emerging Cross-Sectional Technologies | 8 | Active |
| US10319973B2 | Laminated body | Emerging Cross-Sectional Technologies | 7 | Active |
| US10367182B2 | Laminated body | Emerging Cross-Sectional Technologies | 7 | Active |
| US9876210B2 | Porous layer | Emerging Cross-Sectional Technologies | 7 | Active |
| US10388932B2 | Laminated body | Emerging Cross-Sectional Technologies | 7 | Active |
| US10361418B2 | Laminated body | Emerging Cross-Sectional Technologies | 7 | Active |
| US10707517B2 | Nonaqueous electrolyte secondary battery | Electricity | 7 | Active |
| US10461297B2 | Laminated body | Emerging Cross-Sectional Technologies | 7 | Active |
| US6717020B2 | Method of producing p-hydroxyphenylalkanols | Chemistry; Metallurgy | 5 | Expired |
| US9711776B2 | Laminated body, separator, and nonaqueous secondary battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US9865857B2 | Laminated body, separator, and nonaqueous secondary battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US10014506B2 | Laminated body, separator, and nonaqueous secondary battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US10741815B2 | Nonaqueous electrolyte secondary battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US10522809B2 | Adhesive layer, layer, and composition | Emerging Cross-Sectional Technologies | 1 | Active |
| US9711775B2 | Laminated body, separator, and nonaqueous secondary battery | Emerging Cross-Sectional Technologies | 1 | Active |
| US10059085B2 | Wound body of porous film, and manufacturing method thereof | Emerging Cross-Sectional Technologies | 1 | Active |
| US10211442B2 | Nonaqueous electrolyte secondary battery insulating porous layer and nonaqueous electrolyte secondary battery laminated separator | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.