Etsu Hashimoto
15Patents
4h-index
40Co-inventors
60Inventor score
Filing activity: Jan 18, 2001 → Nov 29, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7139491B2 | Laser oscillator, optical communication method and system | Electricity | 22 | Expired |
| US6695471B2 | Method and apparatus for measuring temperature of movable object | Physics | 17 | Expired |
| US7050723B2 | Laser oscillator, optical communication method and system | Electricity | 12 | Expired |
| US10006831B2 | End face observation device | Physics | 4 | Active |
| US7024122B2 | Ultrahigh-speed clock extraction circuit | Electricity | 3 | Expired |
| US9588300B2 | Optical input/output device | Physics | 3 | Active |
| US6560007B2 | Bit-phase synchronized optical pulse stream local generator | Electricity | 2 | Expired |
| US11880073B2 | Optical connector cleaning tool | Performing Operations; Transporting | 1 | Active |
| US9294826B2 | Wavelength selection switch system and method for controlling wavelength selection switch | Electricity | 1 | Active |
| US11911805B2 | Optical connector cleaning tool and optical connector cleaning tool attachment | Physics | 0 | Active |
| US8599460B2 | Micromirror device and micromirror array | Performing Operations; Transporting | 0 | Active |
| US8699832B2 | Optical switch | Physics | 0 | Active |
| US12222558B2 | Optical connector cleaning tool | Performing Operations; Transporting | 0 | Active |
| US12321020B2 | Optical connector cleaning tool | Performing Operations; Transporting | 0 | Active |
| US9247324B2 | Wavelength selection switch system and method for controlling wavelength selection switch | General | 0 | Revoked |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.