Seiji Toyoda

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Swept light source and drive data generation method and optical def...
- Patent number 11,721,948
- Issue date Aug 8, 2023
- Nippon Telegraph and Telephone Corporation
- Masahiro Ueno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Swept light source and drive data generation method and optical def...
- Patent number 11,165,219
- Issue date Nov 2, 2021
- Nippon Telegraph and Telephone Corporation
- Masahiro Ueno
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Swept light source and method for controlling the same
- Patent number 10,205,296
- Issue date Feb 12, 2019
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G01 - MEASURING TESTING
Information Patent Grant
Wavelength swept light source
- Patent number 9,372,339
- Issue date Jun 21, 2016
- Nippon Telegraph and Telephone Communications
- Seiji Toyoda
- G02 - OPTICS
Information Patent Grant
Variable focusing lens and microscope
- Patent number 8,773,749
- Issue date Jul 8, 2014
- Nippon Telegraph and Telephone Corporation
- Tadayuki Imai
- G02 - OPTICS
Information Patent Grant
Electric field sensor
- Patent number 7,859,666
- Issue date Dec 28, 2010
- Nippon Telegraph and Telephone Corporation
- Aiichirou Sasaki
- G01 - MEASURING TESTING
Information Patent Grant
Optical switch, optical modulator and wavelength variable filter
- Patent number 7,492,975
- Issue date Feb 17, 2009
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Grant
Photosensitive composition for manufacturing optical waveguide, pro...
- Patent number 7,358,036
- Issue date Apr 15, 2008
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Optical switch, optical modulator and wavelength variable filter
- Patent number 7,356,227
- Issue date Apr 8, 2008
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Grant
Optical waveguide material and optical waveguide
- Patent number 7,340,147
- Issue date Mar 4, 2008
- Nippon Telegraph and Telephone Corporation
- Tadayuki Imai
- G02 - OPTICS
Information Patent Grant
Optical switch, optical modulator and wavelength variable filter
- Patent number 7,340,116
- Issue date Mar 4, 2008
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Grant
Optical switch, optical modulator and wavelength variable filter
- Patent number 7,336,854
- Issue date Feb 26, 2008
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Grant
Optical waveguide material and optical waveguide
- Patent number 7,177,514
- Issue date Feb 13, 2007
- Nippon Telegraph and Telephone Corporation
- Tadayuki Imai
- G02 - OPTICS
Information Patent Grant
Optical waveguide and method of manufacture
- Patent number 7,110,652
- Issue date Sep 19, 2006
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Grant
Optical waveguide and method of manufacture
- Patent number 6,996,321
- Issue date Feb 7, 2006
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Grant
Photosensitive composition for manufacturing optical waveguide, pro...
- Patent number 6,933,097
- Issue date Aug 23, 2005
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Photosensitive composition for manufacturing optical waveguide, pro...
- Patent number 6,806,040
- Issue date Oct 19, 2004
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Apparatus and method for measuring a phase delay characteristic
- Patent number 6,794,857
- Issue date Sep 21, 2004
- Ando Electric Co. Ltd.
- Seiji Toyoda
- G01 - MEASURING TESTING
Information Patent Grant
Wavelength converter
- Patent number 6,795,232
- Issue date Sep 21, 2004
- Nippon Telegraph and Telephone Corporation
- Kazuo Fujiura
- G02 - OPTICS
Information Patent Grant
Optical waveguide and method of manufacture
- Patent number 6,792,189
- Issue date Sep 14, 2004
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Grant
Photosensitive composition for manufacturing optical waveguide, pro...
- Patent number 6,537,723
- Issue date Mar 25, 2003
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Thermo-optic devices
- Patent number 6,084,050
- Issue date Jul 4, 2000
- Nippon Telegraph & Telephone Corporation
- Naoki Ooba
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Swept Light Source and Drive Data Generation Method and Optical Def...
- Publication number 20210408755
- Publication date Dec 30, 2021
- Nippon Telegraph and Telephone Corporation
- Masahiro UENO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Swept Light Source and Drive Data Generation Method and Optical Def...
- Publication number 20200076154
- Publication date Mar 5, 2020
- Nippon Telegraph and Telephone Corporation
- Masahiro Ueo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
SWEPT LIGHT SOURCE AND METHOD FOR CONTROLLING THE SAME
- Publication number 20170358899
- Publication date Dec 14, 2017
- NIPPON TELEGRAPH AND TELEPHONE CORPORATION
- Seiji TOYODA
- G01 - MEASURING TESTING
Information Patent Application
WAVELENGTH SWEPT LIGHT SOURCE
- Publication number 20130286454
- Publication date Oct 31, 2013
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Application
VARIABLE FOCUSING LENS AND MICROSCOPE
- Publication number 20120075694
- Publication date Mar 29, 2012
- Nippon Telegraph and Telephone Corporation
- Tadayuki Imai
- G02 - OPTICS
Information Patent Application
OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER
- Publication number 20070253659
- Publication date Nov 1, 2007
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Application
OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER
- Publication number 20070092181
- Publication date Apr 26, 2007
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Application
OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER
- Publication number 20070086691
- Publication date Apr 19, 2007
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Application
Optical switch, optical modulator and variable wavelength filter
- Publication number 20070058896
- Publication date Mar 15, 2007
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G02 - OPTICS
Information Patent Application
Variable wavelength optical filter
- Publication number 20060228089
- Publication date Oct 12, 2006
- Makoto Shimokozono
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE MATERIAL AND OPTICAL WAVEGUIDE
- Publication number 20060215981
- Publication date Sep 28, 2006
- Nippon Telegraph and Telephone Corporation
- Tadayuki Imai
- C30 - CRYSTAL GROWTH
Information Patent Application
Electric field sensor and adjustment method thereof
- Publication number 20060152209
- Publication date Jul 13, 2006
- Aiichirou Sasaki
- G01 - MEASURING TESTING
Information Patent Application
Optical waveguide material and optical waveguide
- Publication number 20060051041
- Publication date Mar 9, 2006
- Tadayuki Imai
- C30 - CRYSTAL GROWTH
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20060018616
- Publication date Jan 26, 2006
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20060018617
- Publication date Jan 26, 2006
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20050008318
- Publication date Jan 13, 2005
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Photosensitive composition for manufacturing optical waveguide, pro...
- Publication number 20040175650
- Publication date Sep 9, 2004
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Photosensitive composition for manufacturing optical waveguide, pro...
- Publication number 20040175655
- Publication date Sep 9, 2004
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Photosensitive composition for manufacturing optical waveguide, pro...
- Publication number 20040175651
- Publication date Sep 9, 2004
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Photosensitive composition for manufacturing optical waveguide, pro...
- Publication number 20030148228
- Publication date Aug 7, 2003
- Nippon Telegraph and Telephone Corporation
- Seiji Toyoda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20030072550
- Publication date Apr 17, 2003
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Apparatus and method for measuring a phase delay characteristic
- Publication number 20030057965
- Publication date Mar 27, 2003
- Seiji Toyoda
- G01 - MEASURING TESTING
Information Patent Application
Wavelength converter
- Publication number 20020141040
- Publication date Oct 3, 2002
- Kazuo Fujiura
- G02 - OPTICS

Seiji Toyoda

Person

Patents Grantslast 30 patents

Swept light source and drive data generation method and optical def...

Swept light source and drive data generation method and optical def...

Swept light source and method for controlling the same

Wavelength swept light source

Variable focusing lens and microscope

Electric field sensor

Optical switch, optical modulator and wavelength variable filter

Photosensitive composition for manufacturing optical waveguide, pro...

Optical switch, optical modulator and wavelength variable filter

Optical waveguide material and optical waveguide

Optical switch, optical modulator and wavelength variable filter

Optical switch, optical modulator and wavelength variable filter

Optical waveguide material and optical waveguide

Optical waveguide and method of manufacture

Optical waveguide and method of manufacture

Photosensitive composition for manufacturing optical waveguide, pro...

Photosensitive composition for manufacturing optical waveguide, pro...

Apparatus and method for measuring a phase delay characteristic

Wavelength converter

Optical waveguide and method of manufacture

Photosensitive composition for manufacturing optical waveguide, pro...

Thermo-optic devices

Patents Applicationslast 30 patents

Swept Light Source and Drive Data Generation Method and Optical Def...

Swept Light Source and Drive Data Generation Method and Optical Def...

SWEPT LIGHT SOURCE AND METHOD FOR CONTROLLING THE SAME

WAVELENGTH SWEPT LIGHT SOURCE

VARIABLE FOCUSING LENS AND MICROSCOPE

OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER

OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER

OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER

Optical switch, optical modulator and variable wavelength filter

Variable wavelength optical filter

OPTICAL WAVEGUIDE MATERIAL AND OPTICAL WAVEGUIDE

Electric field sensor and adjustment method thereof

Optical waveguide material and optical waveguide

Optical waveguide and method of manufacture

Optical waveguide and method of manufacture

Optical waveguide and method of manufacture

Photosensitive composition for manufacturing optical waveguide, pro...

Photosensitive composition for manufacturing optical waveguide, pro...

Photosensitive composition for manufacturing optical waveguide, pro...

Photosensitive composition for manufacturing optical waveguide, pro...

Optical waveguide and method of manufacture

Apparatus and method for measuring a phase delay characteristic

Wavelength converter