Optical path route design device and optical path route design method
US-12581223-B2 · Mar 17, 2026 · US
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Seki Takeshi patents
Seki Takeshi is listed as an inventor on 56 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Seki Takeshi |
| Total patents | 56 |
| First publication | Jan 6, 2015 |
| Latest publication | Mar 17, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Wavelength cross connect device, and wavelength cross connect method
US-12563323-B2 · Feb 24, 2026 · US
Magnetic element
US-2026006796-A1 · Jan 1, 2026 · US
Calculation device, network device, calculation method and program
US-2026005763-A1 · Jan 1, 2026 · US
Multipath interference analysis device and multipath interference analysis method
US-12463724-B2 · Nov 4, 2025 · US
Wavelength cross connect device and wavelength cross connect method
US-2025330257-A1 · Oct 23, 2025 · US
Method of manufacturing magnetoresistance effect element, magnetoresistance effect element, magnetic multilayer film, magnetic memory, and magnetic sensor
US-2025308740-A1 · Oct 2, 2025 · US
Magnetic film, magnetoresistive effect element, and method for manufacturing magnetic film
US-12433173-B2 · Sep 30, 2025 · US
Wavelength cross connect device, multiband transmission system, and multiband transmission method
US-12316383-B2 · May 27, 2025 · US
Optical transmission system, transmission method of optical transmission system, and communication device
US-2025158708-A1 · May 15, 2025 · US
Recent patents
Latest publications not already listed above.
Wavelength cross connect device and wavelength cross connect method
US-12244346-B2 · Mar 4, 2025 · US
Optical node device, optical transport network system, optical path trace method and program
US-12207030-B2 · Jan 21, 2025 · US
Wavelength cross connect device, and wavelength cross connect method
US-2024422456-A1 · Dec 19, 2024 · US
Wavelength cross connect device, and wavelength cross connect method
US-2024373152-A1 · Nov 7, 2024 · US
Wavelength cross connect device, and wavelength cross connect method
US-2024283557-A1 · Aug 22, 2024 · US
Wavelength cross connect device, and wavelength cross connect method
US-2024284079-A1 · Aug 22, 2024 · US
Optical path route design device and optical path route design method
US-2024223925-A1 · Jul 4, 2024 · US
Multipath interference analysis device and multipath interference analysis method
US-2024204873-A1 · Jun 20, 2024 · US
Wavelength cross connect device and wavelength cross connect method
US-11979226-B2 · May 7, 2024 · US
Power conversion device and manufacturing method of power conversion device
US-11888408-B2 · Jan 30, 2024 · US
Cyclic wavelength band replacement device, multi-band transmission system, and cyclic wavelength band replacement method
US-11824583-B2 · Nov 21, 2023 · US
Wavelength cross connect device and cross connect connection method
US-11750317-B2 · Sep 5, 2023 · US
Wavelength cross connect device, multiband transmission system, and multiband transmission method
US-2023275668-A1 · Aug 31, 2023 · US
Wavelength cross connect device and wavelength cross connect method
US-2023275667-A1 · Aug 31, 2023 · US
Optical transmission system and design method for opticaltransmission system
US-2023268998-A1 · Aug 24, 2023 · US
Optical node device, optical transport network system, optical path trace method and program
US-2023254611-A1 · Aug 10, 2023 · US
Optical branch insertion device and optical branch insertion method
US-11722235-B2 · Aug 8, 2023 · US
Multi-core fiber, optical transmission system, and optical transmission method
US-2023244025-A1 · Aug 3, 2023 · US
Optical transmission system and optical transmission method
US-11696056-B2 · Jul 4, 2023 · US
Wavelength cross connect device, branch ratio variable method, and program
US-11677489-B2 · Jun 13, 2023 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Nippon Telegraph & Telephone | 41 |
| Tdk Corp | 4 |
| Ntt Inc | 3 |
| Hitachi Automotive Systems Ltd | 3 |
| Hitachi Astemo Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| H04Q11/0005 | 19 |
| H04Q2011/0016 | 17 |
| H04J14/0212 | 15 |
| H04B10/27 | 14 |
| H04B10/291 | 13 |