Manabu Oguma

Person

Yamato-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wavelength monitoring device and controlling method thereof
- Patent number 12,107,626
- Issue date Oct 1, 2024
- Nippon Telegraph and Telephone Corporation
- Osamu Moriwaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical 90 degree hybrid circuit
- Patent number 11,982,839
- Issue date May 14, 2024
- Nippon Telegraph and Telephone Corporation
- Makoto Jizodo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Interposer circuit
- Patent number 11,982,837
- Issue date May 14, 2024
- Nippon Telegraph and Telephone Corporation
- Yuichiro Ikuma
- G02 - OPTICS
Information Patent Grant
Wavelength monitoring circuit
- Patent number 11,973,535
- Issue date Apr 30, 2024
- Nippon Telegraph and Telephone Corporation
- Osamu Moriwaki
- G01 - MEASURING TESTING
Information Patent Grant
Planar optical waveguide circuit
- Patent number 11,835,761
- Issue date Dec 5, 2023
- Nippon Telegraph and Telephone Corporation
- Osamu Moriwaki
- G02 - OPTICS
Information Patent Grant
Optical multi/demultiplexing circuit
- Patent number 11,656,405
- Issue date May 23, 2023
- Nippon Telegraph and Telephone Corporation
- Manabu Oguma
- G02 - OPTICS
Information Patent Grant
Polarization multiplexed optical transmitter circuit and polarizati...
- Patent number 11,493,776
- Issue date Nov 8, 2022
- Nippon Telegraph and Telephone Corporation
- Yusuke Nasu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical multiplexer/demultiplexer
- Patent number 9,407,371
- Issue date Aug 2, 2016
- Nippon Telegraph and Telephone Corporation
- Manabu Oguma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical coupling/splitting device, two-way optical propagation devi...
- Patent number 9,306,670
- Issue date Apr 5, 2016
- Nippon Telegraph and Telephone Corporation
- Masamichi Fujiwara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical wavelength multi/demultiplexer
- Patent number 8,737,779
- Issue date May 27, 2014
- Nippon Telegraph and Telephone Corporation
- Tsutomu Kitoh
- G02 - OPTICS
Information Patent Grant
Optical wavelength multiplexing/demultiplexing circuit, optical mod...
- Patent number 8,483,525
- Issue date Jul 9, 2013
- Nippon Telegraph and Telephone Corporation
- Tsutomu Kitoh
- G02 - OPTICS
Information Patent Grant
Polarization-independent waveguide-type optical interference circuit
- Patent number 8,346,030
- Issue date Jan 1, 2013
- Nippon Telegraph and Telephone Corporation
- Yasuaki Hashizume
- G02 - OPTICS
Information Patent Grant
Waveguide-type optical interferometer
- Patent number 8,150,219
- Issue date Apr 3, 2012
- Nippon Telegraph and Telephone Corporation
- Yusuke Nasu
- G02 - OPTICS
Information Patent Grant
Interferometer optical switch and variable optical attenuator
- Patent number 7,590,312
- Issue date Sep 15, 2009
- Nippon Telegraph and Telephone Corporation
- Takayuki Mizuno
- G02 - OPTICS
Information Patent Grant
Optical multi/demultiplexing circuit equipped with phase generating...
- Patent number 7,085,438
- Issue date Aug 1, 2006
- Nippon Telegraph and Telephone Corporation
- Takayuki Mizuno
- G02 - OPTICS
Information Patent Grant
Optical multiplexer and optical demultiplexer
- Patent number 6,735,358
- Issue date May 11, 2004
- Nippon Telegraph and Telephone Corporation
- Tsutomu Kitoh
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Waveguide-type optical signal processing circuit
- Patent number 6,731,828
- Issue date May 4, 2004
- Nippon Telegraph and Telephone Corporation
- Tsutomu Kitou
- G02 - OPTICS
Information Patent Grant
Optical filter
- Patent number 6,724,957
- Issue date Apr 20, 2004
- Nippon Telegraph and Telephone Corporation
- Takashi Saida
- G02 - OPTICS
Information Patent Grant
Optical multi/demultiplexer
- Patent number 6,606,433
- Issue date Aug 12, 2003
- Nippon Telegraph and Telephone Corporation
- Manabu Oguma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Optical Device Manufacturing Method and Manufacturing Apparatus Usi...
- Publication number 20230341768
- Publication date Oct 26, 2023
- NTT ELECTRONICS CORPORATION
- Yoshinori Hibino
- G02 - OPTICS
Information Patent Application
Optical Multi/Demultiprexing Circuit
- Publication number 20220269001
- Publication date Aug 25, 2022
- Nippon Telegraph and Telephone Corporation
- Manabu Oguma
- G02 - OPTICS
Information Patent Application
Optical 90 Degree Hybrid Circuit
- Publication number 20220171127
- Publication date Jun 2, 2022
- Nippon Telegraph and Telephone Corporation
- Makoto Jizodo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Interposer Circuit
- Publication number 20220120965
- Publication date Apr 21, 2022
- Nippon Telegraph and Telephone Corporation
- Yuichiro Ikuma
- G02 - OPTICS
Information Patent Application
Planar Optical Waveguide Circuit
- Publication number 20220091329
- Publication date Mar 24, 2022
- Nippon Telegraph and Telephone Corporation
- Osamu Moriwaki
- G02 - OPTICS
Information Patent Application
Wavelength Monitoring Device and Controlling Method Thereof
- Publication number 20220086538
- Publication date Mar 17, 2022
- Nippon Telegraph and Telephone Corporation
- Osamu Moriwaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Polarization Multiplexed Optical Transmitter Circuit and Polarizati...
- Publication number 20220066227
- Publication date Mar 3, 2022
- Nippon Telegraph and Telephone Corporation
- Yusuke Nasu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Wavelength Monitoring Circuit
- Publication number 20220011508
- Publication date Jan 13, 2022
- Nippon Telegraph and Telephone Corporation
- Osamu Moriwaki
- G02 - OPTICS
Information Patent Application
OPTICAL MULTIPLEXER/DEMULTIPLEXER
- Publication number 20150229400
- Publication date Aug 13, 2015
- Nippon Telegraph and Telephone Corporation
- Manabu Oguma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
LIGHT MERGING/BRANCHING DEVICE, BIDIRECTIONAL LIGHT PROPAGATION DEV...
- Publication number 20140186040
- Publication date Jul 3, 2014
- Masamichi Fujiwara
- G02 - OPTICS
Information Patent Application
OPTICAL WAVELENGTH MULTI/DEMULTIPLEXER
- Publication number 20120170891
- Publication date Jul 5, 2012
- Nippon Telegraph and Telephone Corporation
- Tsutomu Kitoh
- G02 - OPTICS
Information Patent Application
Optical Wavelength Multiplexing/Demultiplexing Circuit, Optical Mod...
- Publication number 20110268447
- Publication date Nov 3, 2011
- Nippon Telegraph and Telephone Corporation
- Tsutomu Kitoh
- G02 - OPTICS
Information Patent Application
POLARIZATION-INDEPENDENT WAVEGUIDE-TYPE OPTICAL INTERFERENCE CIRCUIT
- Publication number 20110103736
- Publication date May 5, 2011
- Nippon Telegraph and Telephone Corporation
- Yasuaki Hashizume
- G02 - OPTICS
Information Patent Application
WAVEGUIDE-TYPE OPTICAL INTERFEROMETER
- Publication number 20100104237
- Publication date Apr 29, 2010
- Nippon Telegraph and Telephone Corporation
- Yusuke Nasu
- G02 - OPTICS
Information Patent Application
Interference optical switch and variable optical attenuator
- Publication number 20060072866
- Publication date Apr 6, 2006
- Takayuki Mizuno
- G02 - OPTICS
Information Patent Application
Optical multi/demultiplexing circuit equipped with phase generating...
- Publication number 20040136647
- Publication date Jul 15, 2004
- Nippon Telegraph and Telephone Corporation
- Takayuki Mizuno
- G02 - OPTICS
Information Patent Application
Optical filter
- Publication number 20030031406
- Publication date Feb 13, 2003
- Takashi Saida
- G02 - OPTICS
Information Patent Application
Waveguide-type optical signal processing circuit
- Publication number 20030012479
- Publication date Jan 16, 2003
- Nippon Telegraph and Telephone Corporation
- Tsutomu Kitou
- G02 - OPTICS
Information Patent Application
Optical multiplexer and optical demultiplexer
- Publication number 20020106147
- Publication date Aug 8, 2002
- Nippon Telegraph and Telephone Corporation
- Tsutomu Kitoh
- G02 - OPTICS
Information Patent Application
Optical multi/demultiplexer
- Publication number 20020015554
- Publication date Feb 7, 2002
- Nippon Telegraph and Telephone Corporation
- Manabu Oguma
- G02 - OPTICS

Manabu Oguma

Person

Patents Grantslast 30 patents

Wavelength monitoring device and controlling method thereof

Optical 90 degree hybrid circuit

Interposer circuit

Wavelength monitoring circuit

Planar optical waveguide circuit

Optical multi/demultiplexing circuit

Polarization multiplexed optical transmitter circuit and polarizati...

Optical multiplexer/demultiplexer

Optical coupling/splitting device, two-way optical propagation devi...

Optical wavelength multi/demultiplexer

Optical wavelength multiplexing/demultiplexing circuit, optical mod...

Polarization-independent waveguide-type optical interference circuit

Waveguide-type optical interferometer

Interferometer optical switch and variable optical attenuator

Optical multi/demultiplexing circuit equipped with phase generating...

Optical multiplexer and optical demultiplexer

Waveguide-type optical signal processing circuit

Optical filter

Optical multi/demultiplexer

Patents Applicationslast 30 patents

Optical Device Manufacturing Method and Manufacturing Apparatus Usi...

Optical Multi/Demultiprexing Circuit

Optical 90 Degree Hybrid Circuit

Interposer Circuit

Planar Optical Waveguide Circuit

Wavelength Monitoring Device and Controlling Method Thereof

Polarization Multiplexed Optical Transmitter Circuit and Polarizati...

Wavelength Monitoring Circuit

OPTICAL MULTIPLEXER/DEMULTIPLEXER

LIGHT MERGING/BRANCHING DEVICE, BIDIRECTIONAL LIGHT PROPAGATION DEV...

OPTICAL WAVELENGTH MULTI/DEMULTIPLEXER

Optical Wavelength Multiplexing/Demultiplexing Circuit, Optical Mod...

POLARIZATION-INDEPENDENT WAVEGUIDE-TYPE OPTICAL INTERFERENCE CIRCUIT

WAVEGUIDE-TYPE OPTICAL INTERFEROMETER

Interference optical switch and variable optical attenuator

Optical multi/demultiplexing circuit equipped with phase generating...

Optical filter

Waveguide-type optical signal processing circuit

Optical multiplexer and optical demultiplexer

Optical multi/demultiplexer