Toru Katagiri
68Patents
6h-index
63Co-inventors
75Inventor score
Filing activity: Mar 5, 2001 → Feb 26, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8380077B2 | Chromatic dispersion compensation design system and chromatic dispersion compensation design method | Electricity | 14 | Active |
| US7826741B2 | Optical network system | Electricity | 12 | Active |
| US8891712B2 | Transmitting apparatus and transmitting method | Electricity | 10 | Active |
| US7830789B2 | Method for accommodating signal paths to ring network | Electricity | 8 | Active |
| US6741811B2 | Optical cross-connect device and system having the device | Electricity | 7 | Expired |
| US7555061B2 | Optical communication device | Electricity | 6 | Active |
| US7664397B2 | Optical network system | Electricity | 6 | Expired |
| US7689133B2 | Optical signal reception device and method of controlling optical signal reception | Electricity | 6 | Active |
| US7751345B2 | Optical network design method and storage medium for storing design program | Electricity | 5 | Active |
| US8249108B2 | Frame generating method | Electricity | 4 | Active |
| US7433600B2 | Optical node device and system including the device | Electricity | 4 | Expired |
| US8625996B2 | Optical transmitter, optical transmission method, and wavelength-selective variable delayer | Electricity | 3 | Active |
| US7062173B2 | Optical device and wavelength division multiplexing communication system using same | Physics | 3 | Expired |
| US8351795B2 | Optical transmission system and optical transmission method | Electricity | 3 | Active |
| US7813640B2 | Optical connection switching apparatus and management control unit thereof | Electricity | 3 | Active |
| US7200333B2 | Optical communication apparatus, system, and method that properly compensate for chromatic dispersion | Electricity | 3 | Expired |
| US8270829B2 | Apparatus and method for designing network | Electricity | 2 | Active |
| US6643422B2 | Optical switch changeover controlling method, optical node device and optical switch system | Electricity | 2 | Expired |
| US7761006B2 | Method for designing optical network, and computer readable medium | Electricity | 2 | Active |
| US8675684B2 | Frame generating apparatus and frame generating method | Electricity | 2 | Active |
| US8665738B2 | Transmission apparatus and signal transmission method | Electricity | 2 | Active |
| US7864892B2 | Control method and apparatus for receiving optical signal | Electricity | 1 | Active |
| US7660527B2 | Optical network design method | Electricity | 1 | Active |
| US7146066B2 | Wavelength division multiplexing optical transmission system | Electricity | 1 | Expired |
| US8068732B2 | Network design apparatus and network design method | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.