Satoru Okano
33Patents
8h-index
32Co-inventors
75Inventor score
Filing activity: Nov 20, 1996 → Nov 9, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5877881A | Optical transmission system | Electricity | 68 | Expired |
| US6038063A | Optical amplifier and optical transmission system including the optical amplifier | Electricity | 42 | Expired |
| US6738584B1 | Method for optical fiber communication, and terminal device and system for use in carrying out the method | Electricity | 31 | Expired |
| US6288836A | Optical amplifier and optical communication system having the optical amplifier | Electricity | 30 | Expired |
| US7006769B1 | Method for optical fiber communication, and device and system for use in carrying out the method | Electricity | 17 | Expired |
| US6295147A | Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus | Electricity | 10 | Expired |
| US6570691B1 | Optical transmission system using in-line amplifiers | Electricity | 10 | Expired |
| US6449074B1 | Optical transmission device and optical communication system | Electricity | 9 | Expired |
| US6823141B2 | Optical transmission system and dispersion compensator | Electricity | 7 | Expired |
| US9698902B2 | Optical transmission system and optical transmission device | Electricity | 7 | Active |
| US6496288B2 | Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus | Electricity | 6 | Expired |
| US7619813B2 | Wavelength division multiplexing device, an optical leakage prevention method, and a wavelength division multiplexing communication system | Electricity | 6 | Expired |
| US7116913B2 | Optical transmission system and dispersion compensator | Electricity | 5 | Expired |
| US7522839B2 | Method of upgrading optical node, and an optical node apparatus | Electricity | 4 | Active |
| US7542677B2 | Dispersion compensation method in optical communication system having optical add drop multiplexing capability | Electricity | 4 | Active |
| US8615167B2 | WDM optical transmission system and control method thereof | Electricity | 3 | Active |
| US7079771B2 | Wavelength multiplexing transmission apparatus and wavelength demultiplexing reception apparatus | Electricity | 2 | Expired |
| US7068876B1 | Method and system for optical transmission adopting dispersion compensation | Electricity | 2 | Expired |
| US7650072B2 | Method of upgrading optical node, and an optical node apparatus | Electricity | 2 | Active |
| US9673929B2 | Optical transmission apparatus and optical transmission system | Electricity | 2 | Active |
| US7263296B2 | Optical transmission system using in-line amplifiers | Electricity | 1 | Active |
| US7274878B2 | Dispersion compensation method in optical communication system having optical add drop multiplexing capability | Electricity | 1 | Expired |
| US9391421B2 | Optical amplification apparatus, optical transmission apparatus, and optical transmission system | Electricity | 1 | Active |
| US9515727B2 | In-band optical signal-to-noise ratio monitor | Electricity | 1 | Active |
| US7376361B2 | Optical transmission system and dispersion compensator | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.