Atsushi Kiyama

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Fukuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical transmission device
- Patent number 12,191,982
- Issue date Jan 7, 2025
- Fujitsu Limited
- Atsushi Kiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission system and receiving device
- Patent number 11,909,515
- Issue date Feb 20, 2024
- Fujitsu Limited
- Tomoaki Watanabe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Device and method for transmitting wavelength division multiplexed...
- Patent number 10,461,879
- Issue date Oct 29, 2019
- Fujitsu Limited
- Masahiro Yuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical transmission device and method for checking optical connect...
- Patent number 9,900,089
- Issue date Feb 20, 2018
- Fujitsu Limited
- Masahiro Yuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL TRANSMISSION SYSTEM AND RECEIVING DEVICE
- Publication number 20230239066
- Publication date Jul 27, 2023
- Fujitsu Limited
- Tomoaki WATANABE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE
- Publication number 20230208548
- Publication date Jun 29, 2023
- Fujitsu Limited
- Atsushi Kiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION SYSTEM, OPTICAL TRANSMISSION DEVICE AND NETWOR...
- Publication number 20200169320
- Publication date May 28, 2020
- Fujitsu Limited
- Atsushi Kiyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DEVICE AND METHOD FOR TRANSMITTING WAVELENGTH DIVISION MULTIPLEXED...
- Publication number 20180205485
- Publication date Jul 19, 2018
- Fujitsu Limited
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE AND METHOD FOR CHECKING OPTICAL CONNECT...
- Publication number 20170250752
- Publication date Aug 31, 2017
- Fujitsu Limited
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL TRANSMISSION DEVICE, METHOD FOR VERIFYING CONNECTION, AND W...
- Publication number 20160315701
- Publication date Oct 27, 2016
- Fujitsu Limited
- Masahiro YUKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE