Ken Sakuma

Person

Ibaraki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Wireless communication device
- Patent number 11,463,140
- Issue date Oct 4, 2022
- Fujikura Ltd.
- Ken Sakuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wireless communication device
- Patent number 11,450,957
- Issue date Sep 20, 2022
- Fujikura Ltd.
- Ken Sakuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wireless communication system
- Patent number 11,438,050
- Issue date Sep 6, 2022
- Fujikura Ltd.
- Ken Sakuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless communication device and wireless communication method
- Patent number 11,018,718
- Issue date May 25, 2021
- Fujikura Ltd.
- Ken Sakuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Wireless communication device
- Patent number 10,944,456
- Issue date Mar 9, 2021
- Fujikura Ltd.
- Ken Sakuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Planar optical waveguide element, chromatic dispersion compensator,...
- Patent number 8,824,044
- Issue date Sep 2, 2014
- Fujikura Ltd.
- Kensuke Ogawa
- G02 - OPTICS
Information Patent Grant
Planar optical waveguide element, chromatic dispersion compensator,...
- Patent number 8,542,970
- Issue date Sep 24, 2013
- Fujikura Ltd.
- Kensuke Ogawa
- G02 - OPTICS
Information Patent Grant
Phosphor and an incandescent lamp color light emitting diode lamp u...
- Patent number 8,508,119
- Issue date Aug 13, 2013
- Fujikura Ltd.
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Manufacturing method of planar optical waveguide device with gratin...
- Patent number 8,404,133
- Issue date Mar 26, 2013
- Fujikura Ltd.
- Ken Sakuma
- G02 - OPTICS
Information Patent Grant
Optical waveguide element, chromatic dispersion compensator, method...
- Patent number 8,270,789
- Issue date Sep 18, 2012
- Fujikura Ltd.
- Kensuke Ogawa
- G02 - OPTICS
Information Patent Grant
Planar optical waveguide element, chromatic dispersion compensator,...
- Patent number 8,270,790
- Issue date Sep 18, 2012
- Fujikura Ltd.
- Kensuke Ogawa
- G02 - OPTICS
Information Patent Grant
Manufacturing method of planar optical waveguide device with gratin...
- Patent number 8,227,178
- Issue date Jul 24, 2012
- Fujikura Ltd.
- Ken Sakuma
- G02 - OPTICS
Information Patent Grant
Light emitting diode lamp and light emitting device
- Patent number 8,148,887
- Issue date Apr 3, 2012
- National Institute for Materials Science
- Naoto Hirosaki
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Sialon phosphor
- Patent number 8,057,705
- Issue date Nov 15, 2011
- Fujikura Ltd.
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Light emitting device and illumination device
- Patent number 8,053,970
- Issue date Nov 8, 2011
- Fujikura Ltd.
- Naoki Kimura
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Light emitting device and a lighting apparatus
- Patent number 7,608,862
- Issue date Oct 27, 2009
- Fujikura Ltd.
- Ken Sakuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Oxynitride phosphor and a light emitting device
- Patent number 7,597,821
- Issue date Oct 6, 2009
- Fujikura Ltd.
- Ken Sakuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting element and lighting instrument
- Patent number 7,573,190
- Issue date Aug 11, 2009
- National Institute for Materials Science
- Naoto Hirosaki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Light emitting device and a lighting apparatus
- Patent number 7,564,065
- Issue date Jul 21, 2009
- Fujikura Ltd.
- Ken Sakuma
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Oxynitride phosphor and a light emitting device
- Patent number 7,402,943
- Issue date Jul 22, 2008
- Fujikura Ltd.
- Ken Sakuma
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light emitting device and illumination apparatus
- Patent number 7,253,446
- Issue date Aug 7, 2007
- Fujikura Ltd.
- Ken Sakuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacturing method for optical coupler/splitter and method for ad...
- Patent number 7,046,881
- Issue date May 16, 2006
- Fujikura, Ltd.
- Ken Sakuma
- G02 - OPTICS
Information Patent Grant
Optical switch, optical add-drop module, and optical communication...
- Patent number 7,046,872
- Issue date May 16, 2006
- Fujikura Ltd.
- Ken Sakuma
- G02 - OPTICS
Information Patent Grant
Optical waveguide in the interior of silica glass and method of for...
- Patent number 6,945,078
- Issue date Sep 20, 2005
- Fujikura Ltd.
- Takeshi Fukuda
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Optical switch
- Patent number 6,741,775
- Issue date May 25, 2004
- Fujikura Ltd.
- Ken Sakuma
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
PHASED ARRAY ANTENNA MODULE
- Publication number 20240387990
- Publication date Nov 21, 2024
- FUJIKURA LTD.
- Hiroyuki Tanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PHASED ARRAY ANTENNA
- Publication number 20230282976
- Publication date Sep 7, 2023
- FUJIKURA LTD.
- Kiyoshi Kobayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WIRELESS COMMUNICATION SYSTEM
- Publication number 20210344401
- Publication date Nov 4, 2021
- FUJIKURA LTD.
- Ken Sakuma
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
WIRELESS COMMUNICATION DEVICE
- Publication number 20210344113
- Publication date Nov 4, 2021
- FUJIKURA LTD.
- Ken Sakuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WIRELESS COMMUNICATION DEVICE
- Publication number 20210344394
- Publication date Nov 4, 2021
- FUJIKURA LTD.
- Ken Sakuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...
- Publication number 20130129293
- Publication date May 23, 2013
- FUJIKURA LTD.
- Kensuke OGAWA
- G02 - OPTICS
Information Patent Application
MANUFACTURING METHOD OF PLANAR OPTICAL WAVEGUIDE DEVICE WITH GRATIN...
- Publication number 20110049735
- Publication date Mar 3, 2011
- FUJIKURA LTD.
- Ken Sakuma
- G02 - OPTICS
Information Patent Application
MANUFACTURING METHOD OF PLANAR OPTICAL WAVEGUIDE DEVICE WITH GRATIN...
- Publication number 20110053095
- Publication date Mar 3, 2011
- FUJIKURA LTD.
- Ken Sakuma
- G02 - OPTICS
Information Patent Application
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...
- Publication number 20110013269
- Publication date Jan 20, 2011
- FUJIKURA LTD.
- Kensuke OGAWA
- G02 - OPTICS
Information Patent Application
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...
- Publication number 20100329608
- Publication date Dec 30, 2010
- FUJIKURA LTD.
- Kensuke OGAWA
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR, METHOD...
- Publication number 20100322558
- Publication date Dec 23, 2010
- FUJIKURA LTD.
- Kensuke OGAWA
- G02 - OPTICS
Information Patent Application
PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...
- Publication number 20100322559
- Publication date Dec 23, 2010
- FUJIKURA LTD.
- Kensuke OGAWA
- G02 - OPTICS
Information Patent Application
SIALON PHOSPHOR
- Publication number 20100072881
- Publication date Mar 25, 2010
- FUJIKURA LTD.
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Light emitting diode lamp and light emitting device
- Publication number 20090167153
- Publication date Jul 2, 2009
- NATIONAL INSTITUTE FOR MATERIALS SCIENCE
- Naoto Hirosaki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
LIGHT EMITTING DEVICE AND ILLUMINATION DEVICE
- Publication number 20090146549
- Publication date Jun 11, 2009
- FUJIKURA LTD.
- Naoki KIMURA
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Light emitting device and a lighting apparatus
- Publication number 20070278510
- Publication date Dec 6, 2007
- FUJIKURA LTD.
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Oxynitride phosphor and a light emitting device
- Publication number 20070246732
- Publication date Oct 25, 2007
- FUJIKURA LTD.
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Light emitting element and lighting instrument
- Publication number 20070159091
- Publication date Jul 12, 2007
- NATIONAL INSTITUTE FOR MATERIALS SCIENCE
- Naoto Hirosaki
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Application
Powdered fluorescent material and method for manufacturing the same...
- Publication number 20060208260
- Publication date Sep 21, 2006
- FUJIKURA LTD., INDEPENDENT ADMINISTRATIVE INSTITUTION
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Light emitting device and illumination apparatus
- Publication number 20060208262
- Publication date Sep 21, 2006
- FUJIKURA LTD., INDEPENDENT ADMINISTRATIVE INSTITUTION
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Phosphor and an incandescent lamp color light emitting diode lamp u...
- Publication number 20060061263
- Publication date Mar 23, 2006
- FUJIKURA LTD.
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Oxynitride phosphor and a light emitting device
- Publication number 20050285506
- Publication date Dec 29, 2005
- FUJIKURA LTD.
- Ken Sakuma
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
Light emitting device and a lighting apparatus
- Publication number 20050194604
- Publication date Sep 8, 2005
- FUJIKURA LTD., NATIONAL INSTITUTE FOR MATERIAL SCIENCE
- Ken Sakuma
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Method for forming optical waveguide and optical waveguide
- Publication number 20040047578
- Publication date Mar 11, 2004
- FUJIKURA LTD.
- Takeshi Fukuda
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Optical switch, optical add-drop module, and optical communication...
- Publication number 20030210855
- Publication date Nov 13, 2003
- Ken Sakuma
- G02 - OPTICS
Information Patent Application
Manufacturing method for optical coupler/splitter and method for ad...
- Publication number 20030021536
- Publication date Jan 30, 2003
- Ken Sakuma
- G02 - OPTICS
Information Patent Application
Optical switch
- Publication number 20010055440
- Publication date Dec 27, 2001
- Ken Sakuma
- G02 - OPTICS

Person

Patents Grantslast 30 patents

Wireless communication device

Wireless communication device

Wireless communication system

Wireless communication device and wireless communication method

Wireless communication device

Planar optical waveguide element, chromatic dispersion compensator,...

Planar optical waveguide element, chromatic dispersion compensator,...

Phosphor and an incandescent lamp color light emitting diode lamp u...

Manufacturing method of planar optical waveguide device with gratin...

Optical waveguide element, chromatic dispersion compensator, method...

Planar optical waveguide element, chromatic dispersion compensator,...

Manufacturing method of planar optical waveguide device with gratin...

Light emitting diode lamp and light emitting device

Sialon phosphor

Light emitting device and illumination device

Light emitting device and a lighting apparatus

Oxynitride phosphor and a light emitting device

Light emitting element and lighting instrument

Light emitting device and a lighting apparatus

Oxynitride phosphor and a light emitting device

Light emitting device and illumination apparatus

Manufacturing method for optical coupler/splitter and method for ad...

Optical switch, optical add-drop module, and optical communication...

Optical waveguide in the interior of silica glass and method of for...

Optical switch

Patents Applicationslast 30 patents

PHASED ARRAY ANTENNA MODULE

PHASED ARRAY ANTENNA

WIRELESS COMMUNICATION SYSTEM

WIRELESS COMMUNICATION DEVICE

WIRELESS COMMUNICATION DEVICE

PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...

MANUFACTURING METHOD OF PLANAR OPTICAL WAVEGUIDE DEVICE WITH GRATIN...

MANUFACTURING METHOD OF PLANAR OPTICAL WAVEGUIDE DEVICE WITH GRATIN...

PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...

PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...

OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR, METHOD...

PLANAR OPTICAL WAVEGUIDE ELEMENT, CHROMATIC DISPERSION COMPENSATOR,...

SIALON PHOSPHOR

Light emitting diode lamp and light emitting device

LIGHT EMITTING DEVICE AND ILLUMINATION DEVICE

Light emitting device and a lighting apparatus

Oxynitride phosphor and a light emitting device

Light emitting element and lighting instrument

Powdered fluorescent material and method for manufacturing the same...

Light emitting device and illumination apparatus

Phosphor and an incandescent lamp color light emitting diode lamp u...

Oxynitride phosphor and a light emitting device

Light emitting device and a lighting apparatus

Method for forming optical waveguide and optical waveguide

Optical switch, optical add-drop module, and optical communication...

Manufacturing method for optical coupler/splitter and method for ad...

Optical switch