Kohei Shibata
62Patents
7h-index
55Co-inventors
75Inventor score
Filing activity: Jan 11, 1993 → Oct 4, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6163215A | Variable gain amplifier | Electricity | 43 | Expired |
| US6252458A | Differential amplifier | Electricity | 18 | Expired |
| US7330617B2 | Wavelength selective optical switch, and optical device provided with spectroscopic function | Physics | 15 | Expired |
| US7171076B2 | Dispersion-slope compensator | Physics | 15 | Expired |
| US6292058A | Signal amplifying circuit connected to a transfer circuit having a known non-linear transfer characteristic | Electricity | 12 | Expired |
| US7400793B2 | Optical device with slab waveguide and channel waveguides on substrate | Physics | 7 | Active |
| US7359051B2 | Multiple-wavelength spectroscopic apparatus | Physics | 7 | Expired |
| US7340128B2 | Wavelength selection device | Physics | 6 | Expired |
| US7636503B2 | Wavelength selective switch | Physics | 5 | Active |
| US7386206B2 | Optical device with slab waveguide and channel waveguides on substrate | Physics | 5 | Expired |
| US5737111A | Optical receiving apparatus | Electricity | 5 | Expired |
| US10594146B2 | Battery control circuit for multiple cells employing level shift circuits to avoid fault | Emerging Cross-Sectional Technologies | 5 | Active |
| US7424183B2 | Collimator array and method for manufacturing the same | Physics | 5 | Active |
| US9777797B2 | Actuator | Electricity | 4 | Active |
| US6393069B1 | Circuit and method for compensating for degradation in pulse width of burst data | Electricity | 4 | Expired |
| US7231111B2 | Tunable dispersion compensator | Physics | 3 | Expired |
| US6847759B2 | Wavelength dispersion compensating filter | Physics | 3 | Expired |
| US10074875B2 | Protection circuit for secondary battery, battery protection module, battery pack, and method | Emerging Cross-Sectional Technologies | 3 | Active |
| US7580599B2 | Optical switch and MEMS package | Physics | 2 | Active |
| US7263254B2 | Optical switch and control method therefor | Physics | 2 | Expired |
| US5344243A | Head wire and manufacturing process thereof | Performing Operations; Transporting | 2 | Expired |
| US9461754B2 | Optical receiving apparatus, optical transmitter and receiver module, and optical transmitting and receiving apparatus | Electricity | 2 | Active |
| US9081069B2 | Protection IC and method of monitoring a battery voltage | Emerging Cross-Sectional Technologies | 2 | Active |
| US8125942B2 | MIMO wireless communication | Electricity | 1 | Active |
| US9638861B2 | Optical transmitter | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.