Haruhiko Kuwatsuka

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Tsukuba-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Driving device and driving method for phase controller, and optical...
- Patent number 10,901,242
- Issue date Jan 26, 2021
- National Institute of Advanced Industrial Science and Technology
- Ken Tanizawa
- G02 - OPTICS
Information Patent Grant
Optical transmitter implementing wavelength tunable diode
- Patent number 9,819,149
- Issue date Nov 14, 2017
- Sumitomo Electrix Industries, Ltd.
- Katsumi Uesaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Laser apparatus and method to re-tune emission wavelength tunable LD
- Patent number 9,444,221
- Issue date Sep 13, 2016
- Sumitomo Electric Industries, Ltd
- Katsumi Uesaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
System to control wavelength and method to control wavelength
- Patent number 9,395,504
- Issue date Jul 19, 2016
- Sumitomo Electric Industries, Ltd
- Katsumi Uesaka
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Driving Device and Driving Method for Phase Controller, and Optical...
- Publication number 20200271962
- Publication date Aug 27, 2020
- NATIONAL INSTITUTE ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Ken TANIZAWA
- G02 - OPTICS
Information Patent Application
OPTICAL TRANSMITTER IMPLEMENTING WAVELENGTH TUNABLE DIODE
- Publication number 20170149209
- Publication date May 25, 2017
- Sumitomo Electric Industries, Ltd.
- Katsumi Uesaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
LASER APPARATUS AND METHOD TO RE-TUNE EMISSION WAVELENGTH OF WAVELE...
- Publication number 20160006212
- Publication date Jan 7, 2016
- Sumitomo Electric Industries, Ltd.
- Katsumi Uesaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SYSTEM TO CONTROL WAVELENGTH AND METHOD TO CONTROL WAVELENGTH
- Publication number 20150076990
- Publication date Mar 19, 2015
- Sumitomo Electric Industries, Ltd.
- Katsumi UESAKA
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR