Kazuo Fujiura

Person

Tokyo, JP

People

Patents Grantslast 30 patents

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
Apparatus for producing crystals
- Patent number 8,992,683
- Issue date Mar 31, 2015
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- C30 - CRYSTAL GROWTH
Information Patent Grant
Electrooptic device
- Patent number 8,654,167
- Issue date Feb 18, 2014
- Nippon Telegraph and Telephone Corporation
- Kouichirou Nakamura
- G02 - OPTICS
Information Patent Grant
Electrooptic device
- Patent number 8,648,893
- Issue date Feb 11, 2014
- Nippon Telegraph and Telephone Corporation
- Kouichirou Nakamura
- G02 - OPTICS
Information Patent Grant
Spectroscope
- Patent number 8,274,653
- Issue date Sep 25, 2012
- Nippon Telegraph and Telephone Corporation
- Koichiro Nakamura
- G01 - MEASURING TESTING
Information Patent Grant
Variable-focal length lens
- Patent number 8,014,061
- Issue date Sep 6, 2011
- Nippon Telegraph and Telephone Corporation
- Tadayuki Imai
- G02 - OPTICS
Information Patent Grant
Optical fiber and production method thereof
- Patent number 7,953,309
- Issue date May 31, 2011
- Nippon Telegraph and Telephone Corporation
- Atsushi Mori
- C03 - GLASS MINERAL OR SLAG WOOL
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
Electrooptic device
- Patent number 7,764,302
- Issue date Jul 27, 2010
- Nippon Telegraph and Telephone Corporation
- Kouichirou Nakamura
- G02 - OPTICS
Information Patent Grant
Tellurite optical fiber and production method thereof
- Patent number 7,677,059
- Issue date Mar 16, 2010
- Nippon Telegraph and Telephone Corporation
- Atsushi Mori
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical medium, an optical lens and a prism
- Patent number 7,674,737
- Issue date Mar 9, 2010
- Nippon Telegraph and Telephone Corporation
- Kazuo Fujiura
- G02 - OPTICS
Information Patent Grant
Method and apparatus for producing crystals
- Patent number 7,591,895
- Issue date Sep 22, 2009
- Nippon Telegraph and Telephone Corporation
- Masahiro Sasaura
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
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
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 multiplexing communication system using ultra high speed si...
- Patent number 7,272,317
- Issue date Sep 18, 2007
- Nippon Telegraph and Telephone Corporation
- Masao Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
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
Wavelength tunable light source and pulse light source
- Patent number 6,870,663
- Issue date Mar 22, 2005
- Nippon Telegraph and Telephone Corporation
- Masao Kato
- G02 - OPTICS
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
Optical disk apparatus with swingable disk tray holder
- Patent number 6,181,510
- Issue date Jan 30, 2001
- Kabushiki Kaisha Toshiba
- Kazuo Fujiura
- G11 - INFORMATION STORAGE
Information Patent Grant
Disk cartridge having a dynamically stable supported member in a di...
- Patent number 6,052,359
- Issue date Apr 18, 2000
- Kabushiki Kaisha Toshiba
- Kazuo Fujiura
- G11 - INFORMATION STORAGE
Information Patent Grant
Method of making fluoride glass using barium .beta.-diketones
- Patent number 5,145,508
- Issue date Sep 8, 1992
- Nippon Telegraph & Telephone Corporation
- Kazuo Fujiura
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for the preparation of fluoride glass and process for the p...
- Patent number 5,071,460
- Issue date Dec 10, 1991
- Nippon Telegraph & Telephone Corporation
- Kazuo Fujiura
- C03 - GLASS MINERAL OR SLAG WOOL

Patents Applicationslast 30 patents

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
ELECTROOPTIC DEVICE
- Publication number 20120182600
- Publication date Jul 19, 2012
- Nippon Telegraph and Telephone Corporation
- Kouichirou Nakamura
- G02 - OPTICS
Information Patent Application
SPECTROSCOPE
- Publication number 20110058166
- Publication date Mar 10, 2011
- Nippon Telegraph and Telephone Corporation
- Koichiro Nakamura
- G01 - MEASURING TESTING
Information Patent Application
VARIABLE-FOCAL LENGTH LENS
- Publication number 20100290104
- Publication date Nov 18, 2010
- Nippon Telegraph and Telephone Corporation
- Tadayuki Imai
- G02 - OPTICS
Information Patent Application
ELECTROOPTIC DEVICE
- Publication number 20100253996
- Publication date Oct 7, 2010
- Nippon Telegraph and Telephone Corporation
- Kouichirou Nakamura
- G02 - OPTICS
Information Patent Application
ELECTROOPTIC DEVICE
- Publication number 20090219378
- Publication date Sep 3, 2009
- Nippon Telegraph and Telephone Corporation
- Kouichirou Nakamura
- G02 - OPTICS
Information Patent Application
OPTICAL FIBER AND PRODUCTION METHOD THEREOF
- Publication number 20090060438
- Publication date Mar 5, 2009
- Nippon Telegraph and Telephone Corporation
- Atsushi Mori
- G02 - OPTICS
Information Patent Application
Method and Apparatus for Preparing Crystal
- Publication number 20080271666
- Publication date Nov 6, 2008
- Masahiro Sasaura
- C30 - CRYSTAL GROWTH
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
Apparatus for Producing Crystals
- Publication number 20070209579
- Publication date Sep 13, 2007
- Masahiro Sasaura
- C30 - CRYSTAL GROWTH
Information Patent Application
Optical Medium, An Optical Lens And A Prism
- Publication number 20070199505
- Publication date Aug 30, 2007
- Nippon Telegraph and Telephone Corporation
- Kazuo Fujiura
- C30 - CRYSTAL GROWTH
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 fiber and production method thereof
- Publication number 20060010921
- Publication date Jan 19, 2006
- Atsushi Mori
- 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
Optical multiplexing communication system using ultra high speed si...
- Publication number 20030231885
- Publication date Dec 18, 2003
- Masao Kato
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Optical waveguide and method of manufacture
- Publication number 20030072550
- Publication date Apr 17, 2003
- Masahiro Sasaura
- G02 - OPTICS
Information Patent Application
Wavelength tunable light source and pulse light source
- Publication number 20030043451
- Publication date Mar 6, 2003
- Masao Kato
- G02 - OPTICS
Information Patent Application
Wavelength converter
- Publication number 20020141040
- Publication date Oct 3, 2002
- Kazuo Fujiura
- G02 - OPTICS

Kazuo Fujiura

Person

Patents Grantslast 30 patents

Swept light source and method for controlling the same

Apparatus for producing crystals

Electrooptic device

Electrooptic device

Spectroscope

Variable-focal length lens

Optical fiber and production method thereof

Electric field sensor

Electrooptic device

Tellurite optical fiber and production method thereof

Optical medium, an optical lens and a prism

Method and apparatus for producing crystals

Optical switch, optical modulator and wavelength variable filter

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 multiplexing communication system using ultra high speed si...

Optical waveguide material and optical waveguide

Optical waveguide and method of manufacture

Optical waveguide and method of manufacture

Wavelength tunable light source and pulse light source

Wavelength converter

Optical waveguide and method of manufacture

Optical disk apparatus with swingable disk tray holder

Disk cartridge having a dynamically stable supported member in a di...

Method of making fluoride glass using barium .beta.-diketones

Process for the preparation of fluoride glass and process for the p...

Patents Applicationslast 30 patents

SWEPT LIGHT SOURCE AND METHOD FOR CONTROLLING THE SAME

ELECTROOPTIC DEVICE

SPECTROSCOPE

VARIABLE-FOCAL LENGTH LENS

ELECTROOPTIC DEVICE

ELECTROOPTIC DEVICE

OPTICAL FIBER AND PRODUCTION METHOD THEREOF

Method and Apparatus for Preparing Crystal

OPTICAL SWITCH, OPTICAL MODULATOR AND WAVELENGTH VARIABLE FILTER

Apparatus for Producing Crystals

Optical Medium, An Optical Lens And A Prism

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 fiber and production method thereof

Optical waveguide and method of manufacture

Optical multiplexing communication system using ultra high speed si...

Optical waveguide and method of manufacture

Wavelength tunable light source and pulse light source

Wavelength converter