Inventor
SHUTO YAMAMOTO
Inventor
JP
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Bprimary
H04BTransmission34%
H04LTransmission of digital information, e.g. telegraphic communication24%
H03MCoding16%
H04QSelecting16%
H04JMultiplex communication5%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein3%
H03HImpedance networks, e.g. resonant circuits3%
PatentTitleYear
12,556,203Symbol judgement apparatus, symbol judgement method and program202612,362,837Optical signal demodulator, control method and program202512,231,173Symbol determination device and tap selection method202512,184,337Optical transmission system, control apparatus, optical transmission method and program202412,107,762Optical and electronic integrated switch202412,034,484Optical communication network management apparatus202411,979,694Optical and electronic integrated switch202411,930,309Optical and electronic integrated switch202411,881,897Optical and electronic integrated switch and optical network system202411,870,489S/N ratio estimation circuit, and adaptive filter circuit202411,855,699Optical transmission system, optical transmitting apparatus and optical receiving apparatus202311,706,065Symbol judgement apparatus and symbol judgement method202311,683,093Wavelength dispersion compensation apparatus, optical receiving apparatus, wavelength dispersion compensation method and computer program202311,581,944Optical transmission system202311,444,694Optical transmission system202211,444,699Optical transmission system, optical receiving apparatus and optical transmission method202211,349,524Symbol-determining device and symbol determination method202211,283,528Digital coherent receiver and digital coherent receiving method2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to NIPPON TELEGRAPH & TELEPHONE (17)· patent assignee history
2022–2026Based in JP· patent location history
2026Patents assigned to NTT INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON TELEGRAPH & TELEPHONE | 17 | 2022–2025 |
| NTT INC | 1 | 2026 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 18 | 2022–2026 |