Ryuji Murata
16Patents
5h-index
28Co-inventors
66Inventor score
Filing activity: Jan 28, 1986 → Nov 13, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5390274A | Distributed graded index type optical transmission plastic article and method of manufacturing same | Emerging Cross-Sectional Technologies | 36 | Expired |
| US4798445A | Plastic optical fiber and process for producing the same | Performing Operations; Transporting | 26 | Expired |
| US4762392A | Plastic optical fibers | Emerging Cross-Sectional Technologies | 24 | Expired |
| US5022737A | Plastic cladding composition for plastic core optical fiber, and plastic core optical fiber prepared therefrom | Emerging Cross-Sectional Technologies | 12 | Expired |
| US5238974A | Plastic cladding composition for silica or glass core optical fiber, and silica or glass core optical fiber prepared therefrom | Physics | 8 | Expired |
| US7409190B2 | Radio-frequency circuit module and radio communication apparatus | Electricity | 5 | Active |
| US9252832B2 | High-frequency circuit and communication device | Electricity | 5 | Active |
| US5175786A | Distributed refractive index type optical transmission plastic article and method of manufacturing the same | Physics | 5 | Expired |
| US8014925B2 | Control apparatus for automatic transmission for vehicle | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US9287847B2 | Module | Electricity | 2 | Active |
| US7501915B2 | High frequency module | Emerging Cross-Sectional Technologies | 2 | Active |
| US9859861B2 | High frequency filter and high frequency module equipped with same | Electricity | 2 | Active |
| US8515631B2 | Control device for automatic transmission of vehicle | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10495747B2 | Snow quality measuring apparatus and snow quality measuring method | Physics | 2 | Active |
| US11718302B2 | System and method for increasing upshift engine torque | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9654150B2 | Module with duplexers coupled to diplexer | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.