Hirokazu Takenouchi

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Atsugi-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical amplifier
- Patent number 9,065,243
- Issue date Jun 23, 2015
- Nippon Telegraph and Telephone Corporation
- Masaki Asobe
- G02 - OPTICS
Information Patent Grant
Optical signal processing method and optical signal processing appa...
- Patent number 6,535,661
- Issue date Mar 18, 2003
- Nippon Telegraph and Telephone Corporation
- Ryo Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical signal processing apparatus and optical signal processing m...
- Patent number 6,456,760
- Issue date Sep 24, 2002
- Nippon Telegraph and Telephone Corporation
- Takashi Kurokawa
- G02 - OPTICS
Information Patent Grant
Vertical-cavity surface-emitting laser and method for manufacturing...
- Patent number 6,127,200
- Issue date Oct 3, 2000
- Nippon Telegraph & Telephone Corporation
- Yoshitaka Ohiso
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical signal processing apparatus and optical signal processing m...
- Patent number 6,122,419
- Issue date Sep 19, 2000
- Nippon Telegraph & Telephone Corporation
- Takashi Kurokawa
- G02 - OPTICS
Information Patent Grant
Vertical-cavity surface-emitting laser and method for manufacturing...
- Patent number 5,864,575
- Issue date Jan 26, 1999
- Nippon Telegraph & Telephone Corporation
- Yoshitaka Ohiso
- B82 - NANO-TECHNOLOGY

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL AMPLIFIER DEVICE
- Publication number 20150036210
- Publication date Feb 5, 2015
- Masaki Asobe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Optical signal processing method and optical signal processing appa...
- Publication number 20020012492
- Publication date Jan 31, 2002
- Ryo Takahashi
- G02 - OPTICS