Akimasa Kaneko

Person

Mito-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical module
- Patent number 8,545,111
- Issue date Oct 1, 2013
- Nippon Telegraph and Telephone Corporation
- Takaharu Ohyama
- G02 - OPTICS
Information Patent Grant
Optical modulator
- Patent number 8,467,635
- Issue date Jun 18, 2013
- Nippon Telegraph and Telephone Corporation
- Yoshiyuki Doi
- G02 - OPTICS
Information Patent Grant
Arrayed waveguide grating circuit
- Patent number 7,995,876
- Issue date Aug 9, 2011
- Nippon Telegraph and Telephone Corporation
- Tomoyuki Yamada
- G02 - OPTICS
Information Patent Grant
Arrayed waveguide grating type optical multiplexer/demultiplexer ci...
- Patent number 7,400,800
- Issue date Jul 15, 2008
- NTT Electronics Corporation
- Tsutomu Kitoh
- G02 - OPTICS
Information Patent Grant
Optical multiplexer and method for its production
- Patent number 6,898,345
- Issue date May 24, 2005
- NTT Electronics Corporation
- Katsunari Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical multiplexing circuit and optical multiplexer
- Patent number 6,842,560
- Issue date Jan 11, 2005
- NTT Electronics Corporation
- Yoshiki Yamauchi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength division multiplexing transmission network device
- Patent number 6,718,140
- Issue date Apr 6, 2004
- Nippon Telegraph and Telephone Corporation
- Shin Kamei
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency stabilized laser and method for preparing thereof
- Patent number 6,320,888
- Issue date Nov 20, 2001
- Nippon Telegraph and Telephone Corporation
- Takuya Tanaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical waveguide circuit, its manufacturing method and optical wav...
- Patent number 6,304,687
- Issue date Oct 16, 2001
- Nippon Telegraph and Telephone Corporation
- Yasuyuki Inoue
- G02 - OPTICS
Information Patent Grant
Planar lightwave circuit
- Patent number 6,304,706
- Issue date Oct 16, 2001
- Nippon Telegraph and Telephone Corporation
- Akio Sugita
- G02 - OPTICS
Information Patent Grant
WDM filter
- Patent number 6,229,938
- Issue date May 8, 2001
- Nippon Telegraph and Telephone Corporation
- Yoshinori Hibino
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL MODULATOR
- Publication number 20110229070
- Publication date Sep 22, 2011
- Nippon Telegraph and Telephone Corporation
- Yoshiyuki Doi
- G02 - OPTICS
Information Patent Application
OPTICAL MODULE
- Publication number 20100322569
- Publication date Dec 23, 2010
- Nippon Telegraph and Telephone Corporation
- Takaharu Ohyama
- G02 - OPTICS
Information Patent Application
ARRAYED WAVEGUIDE GRATING CIRCUIT
- Publication number 20090263084
- Publication date Oct 22, 2009
- Nppon Telegraph and Telephone Corporation
- Tomoyuki Yamada
- G02 - OPTICS
Information Patent Application
OPTICAL SIGNAL MONITORING APPARATUS, OPTICAL SYSTEM AND OPTICAL SIG...
- Publication number 20080226290
- Publication date Sep 18, 2008
- Nippon Telegraph and Telephone Corporation
- Takaharu Ohyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical multiplexer and method for its production
- Publication number 20030185512
- Publication date Oct 2, 2003
- Katsunari Okamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical multiplexing circuit and optical multiplexer
- Publication number 20020126341
- Publication date Sep 12, 2002
- NTT ELECTRONICS CORPORATION and NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Yoshiki Yamauchi
- G02 - OPTICS

Akimasa Kaneko

Person

Patents Grantslast 30 patents

Optical module

Optical modulator

Arrayed waveguide grating circuit

Arrayed waveguide grating type optical multiplexer/demultiplexer ci...

Optical multiplexer and method for its production

Optical multiplexing circuit and optical multiplexer

Optical wavelength division multiplexing transmission network device

Frequency stabilized laser and method for preparing thereof

Optical waveguide circuit, its manufacturing method and optical wav...

Planar lightwave circuit

WDM filter

Patents Applicationslast 30 patents

OPTICAL MODULATOR

OPTICAL MODULE

ARRAYED WAVEGUIDE GRATING CIRCUIT

OPTICAL SIGNAL MONITORING APPARATUS, OPTICAL SYSTEM AND OPTICAL SIG...

Optical multiplexer and method for its production

Optical multiplexing circuit and optical multiplexer