Yuki WAKAYAMA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical multilevel transmitter and optical transponder
- Patent number 9,485,032
- Issue date Nov 1, 2016
- Hitachi, Ltd.
- Yuki Wakayama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor laser and optical semiconductor device
- Patent number 9,263,852
- Issue date Feb 16, 2016
- Oclaro Japan, Inc.
- Kouji Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser and optical semiconductor device
- Patent number 8,958,451
- Issue date Feb 17, 2015
- Oclaro Japan, Inc.
- Kouji Nakahara
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical semiconductor device
- Patent number 8,891,570
- Issue date Nov 18, 2014
- Oclaro Japan, Inc.
- Kouji Nakahara
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR LASER AND OPTICAL SEMICONDUCTOR DEVICE
- Publication number 20150155687
- Publication date Jun 4, 2015
- Oclaro Japan, Inc.
- Kouji NAKAHARA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL MULTILEVEL TRANSMITTER AND OPTICAL TRANSPONDER
- Publication number 20150117869
- Publication date Apr 30, 2015
- Hitachi, Ltd
- Yuki WAKAYAMA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SEMICONDUCTOR LASER AND OPTICAL SEMICONDUCTOR DEVICE
- Publication number 20140211823
- Publication date Jul 31, 2014
- OCLARO JAPAN, INC.
- Kouji NAKAHARA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL SEMICONDUCTOR DEVICE
- Publication number 20130208751
- Publication date Aug 15, 2013
- OCLARO JAPAN, INC.
- Kouji NAKAHARA
- B82 - NANO-TECHNOLOGY