Takehisa Ishihara
12Patents
5h-index
15Co-inventors
59Inventor score
Filing activity: Oct 16, 1998 → Aug 26, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6109797A | Plug-jack type transfer device and plug-jack type optical/electrical compatible transfer device | Electricity | 38 | Expired |
| US6454467B1 | Optical transmission and reception system, and optical transmission and reception module and optical cable for the system | Physics | 22 | Expired |
| US6236477A | Optical transmission and receiving module | Physics | 13 | Expired |
| US6254282A | Optical transmit-receive module, optical transmit-receive coupler and optical transmit-receive system using same | Electricity | 12 | Expired |
| US6718091B2 | Optical cable for an optical transmission and reception system | Physics | 6 | Expired |
| US7183761B2 | Rotation sensor | Physics | 4 | Expired |
| US7254992B2 | Rotation-sensored rotary connector | Physics | 1 | Expired |
| US7844184B2 | Remote control receiver and electronic equipment including the same | Electricity | 1 | Active |
| US6937009B2 | Rotation sensor and displacement detecting apparatus and method utilizing the same | Physics | 1 | Expired |
| US7635852B2 | Optical coupler with first and second division connector portion | Electricity | 0 | Active |
| US9587985B2 | Optical transmission device, light guide plug, optical fiber plug, light reception device, and portable apparatus | Electricity | 0 | Active |
| US10086268B2 | Eyeball movement detection device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.