Katsuhiro Iwasaki

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Nagahama-shi, Shiga, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber module and method for manufacturing the same
- Patent number 11,067,755
- Issue date Jul 20, 2021
- KOHOKU KOGYO CO., LTD.
- Katsuhiro Iwasaki
- G02 - OPTICS
Information Patent Grant
Optical communication module
- Patent number D879767
- Issue date Mar 31, 2020
- Kohoku Kogyo Co., Ltd.
- Katsuhiro Iwasaki
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Optical communication module
- Patent number D879768
- Issue date Mar 31, 2020
- KOHOKU KOGYO CP., LTD.
- Katsuhiro Iwasaki
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Optical multiplexer/demultiplexer and optical transceiver
- Patent number 10,187,175
- Issue date Jan 22, 2019
- Kohoku Kogyo Co., Ltd.
- Katsuhiro Iwasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
FAN-IN/FAN-OUT DEVICE
- Publication number 20250172755
- Publication date May 29, 2025
- KOHOKU KOGYO CO., LTD.
- Katsuhiro IWASAKI
- G02 - OPTICS
Information Patent Application
FAN-IN/FAN-OUT DEVICE
- Publication number 20240061204
- Publication date Feb 22, 2024
- KOHOKU KOGYO CO., LTD.
- Tomoaki KIRIYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL FILTER DEVICE
- Publication number 20240004138
- Publication date Jan 4, 2024
- KOHOKU KOGYO CO., LTD.
- Katsuya KITO
- G02 - OPTICS
Information Patent Application
PREFORM FOR OPTICAL FIBER AND MANUFACTURING METHOD OF OPTICAL FIBER
- Publication number 20230303421
- Publication date Sep 28, 2023
- KOHOKU KOGYO CO., LTD.
- Katsuhiro IWASAKI
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER MODULE AND METHOD FOR MANUFACTURING THE SAME
- Publication number 20210018693
- Publication date Jan 21, 2021
- KOHOKU KOGYO CO., LTD.
- Katsuhiro IWASAKI
- G02 - OPTICS
Information Patent Application
OPTICAL MULTIPLEXER/DEMULTIPLEXER AND OPTICAL TRANSCEIVER
- Publication number 20180145789
- Publication date May 24, 2018
- KOHOKU KOGYO CO., LTD.
- Katsuhiro Iwasaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE