Inventor
Seiki KUWABARA
Inventor
JP
Overview
Patents· 10 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication30%
H04BTransmission26%
H04QSelecting22%
H04JMultiplex communication15%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use7%
PatentTitleYear
12,457,040Optical transmission system and transmission mode selecting method202512,107,762Optical 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 system202411,546,064Optical transmission system and transmission mode selecting method202311,509,392Signal quality information notification method and relay communication apparatus202211,342,990State estimating device and communication system202211,165,497Optical transmission system and communication condition selection method2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2024Patents assigned to NIPPON TELEGRAPH & TELEPHONE (9)· patent assignee history
2021–2025Based in JP· patent location history
2025Patents 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 | 9 | 2021–2024 |
| NTT INC | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 10 | 2021–2025 |