Yohei SOBU

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Chiyoda, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical transmitter for transmitting multilevel optical signals
- Patent number 11,736,201
- Issue date Aug 22, 2023
- Fujitsu Limited
- Shinsuke Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical modulator and optical modulation method
- Patent number 11,474,409
- Issue date Oct 18, 2022
- Fujitsu Limited
- Yohei Sobu
- G02 - OPTICS
Information Patent Grant
Optical semiconductor device and reception apparatus
- Patent number 11,327,234
- Issue date May 10, 2022
- Fujitsu Limited
- Yohei Sobu
- G02 - OPTICS
Information Patent Grant
Transmission device, optical transceiver module, and optical modula...
- Patent number 11,139,895
- Issue date Oct 5, 2021
- Fujitsu Limited
- Shinsuke Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL TRANSMITTER FOR TRANSMITTING MULTILEVEL OPTICAL SIGNALS
- Publication number 20230019673
- Publication date Jan 19, 2023
- Fujitsu Limited
- Shinsuke Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMITTER AND TRANSMISSION DEVICE
- Publication number 20220311534
- Publication date Sep 29, 2022
- Fujitsu Limited
- Yohei SOBU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL MODULATOR AND OPTICAL MODULATION METHOD
- Publication number 20220019120
- Publication date Jan 20, 2022
- Fujitsu Limited
- Yohei Sobu
- G02 - OPTICS
Information Patent Application
TRANSMISSION DEVICE, OPTICAL TRANSCEIVER MODULE, AND OPTICAL MODULA...
- Publication number 20210135761
- Publication date May 6, 2021
- Fujitsu Limited
- Shinsuke Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL SEMICONDUCTOR DEVICE AND RECEPTION APPARATUS
- Publication number 20210103100
- Publication date Apr 8, 2021
- Fujitsu Limited
- Yohei SOBU
- G02 - OPTICS