Takehito Tanaka
29Patents
6h-index
31Co-inventors
69Inventor score
Filing activity: Mar 16, 1998 → Sep 19, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7263244B2 | Optical modulator | Physics | 12 | Expired |
| US6741379B2 | Optical module having element for optical phase shift using electro-optic effect | Physics | 11 | Expired |
| US6678428B2 | Optical modulator | Physics | 11 | Expired |
| US6136457A | Manganese oxide material having MnO.sub.3 as a matrix | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7526161B2 | Optical device | Physics | 8 | Active |
| US6238102A | Multiaxial optical coupler | Physics | 7 | Expired |
| US9231728B2 | Optical module and optical transmitter | Physics | 6 | Active |
| US6594407B2 | Optical modulator of clock modulation type | Physics | 5 | Expired |
| US6961494B2 | Optical waveguide device | Physics | 4 | Expired |
| US9954638B2 | Optical module and optical transmitter using the same | Electricity | 4 | Active |
| US6950218B2 | Optical modulator | Physics | 3 | Expired |
| US6466705B2 | Acousto-optic variable-wavelength TE/TM mode converter, and a variable-wavelength optical filter using this converter | Physics | 3 | Expired |
| US9461753B2 | Optical receiver circuit | Physics | 2 | Active |
| US6999223B2 | Optical modulator | Physics | 2 | Expired |
| US7551820B2 | Optical device | Physics | 2 | Active |
| US10989980B2 | Optical modulator | Physics | 1 | Active |
| US9405081B2 | Optical transmitting apparatus | Physics | 1 | Active |
| US8120925B2 | Circuit device | Physics | 1 | Active |
| US10031395B2 | Optical modulator | Physics | 1 | Active |
| US9229292B2 | Optical module and optical transmitter | Physics | 1 | Active |
| US9638861B2 | Optical transmitter | Physics | 1 | Active |
| US12153294B2 | Optical device having dual waveguides with one being an electro-optic crystal waveguide | Physics | 0 | Active |
| US7689078B2 | Optical device | Physics | 0 | Active |
| US9864147B2 | Optical modulator module | Physics | 0 | Active |
| US10578885B2 | Polarization coupling device and optical modulation device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.