Keiji Tsunetomo

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical component and method of manufacturing optical component
- Patent number 12,174,399
- Issue date Dec 24, 2024
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Illumination device
- Patent number 11,892,154
- Issue date Feb 6, 2024
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- F21 - LIGHTING
Information Patent Grant
Radiation angle changing element and light emitting device
- Patent number 11,555,596
- Issue date Jan 17, 2023
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- F21 - LIGHTING
Information Patent Grant
Substrate with glass sheet, resin layer and through-glass via
- Patent number 11,276,584
- Issue date Mar 15, 2022
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Image sensor unit and image reading device
- Patent number 10,917,536
- Issue date Feb 9, 2021
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for producing glass substrate with through glass vias and gl...
- Patent number 10,727,048
- Issue date Jul 28, 2020
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for producing glass substrate and glass sheet
- Patent number 10,418,256
- Issue date Sep 17, 2019
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method for producing glass substrate with through glass vias and gl...
- Patent number 10,276,368
- Issue date Apr 30, 2019
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Glass substrate processing method and glass component
- Patent number 8,307,672
- Issue date Nov 13, 2012
- Olympus Corporation
- Takeshi Hidaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Waveguide element, method for producing the waveguide element, and...
- Patent number 7,724,997
- Issue date May 25, 2010
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Transmissive diffraction grating, and spectral separation element a...
- Patent number 7,688,512
- Issue date Mar 30, 2010
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- G01 - MEASURING TESTING
Information Patent Grant
Multilayer structure and method for manufacturing the same
- Patent number 7,666,492
- Issue date Feb 23, 2010
- Nippon Sheet Glass Company, Limited
- Katsuhide Shimmo
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass for laser processing
- Patent number 7,524,783
- Issue date Apr 28, 2009
- Nippon Sheet Glass Co., Ltd.
- Hirotaka Koyo
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Optical waveguide device
- Patent number 7,515,804
- Issue date Apr 7, 2009
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Waveguide element using photonic crystal
- Patent number 7,421,176
- Issue date Sep 2, 2008
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method of manufacturing article having uneven surface
- Patent number 7,407,889
- Issue date Aug 5, 2008
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Glass for laser processing
- Patent number 7,399,721
- Issue date Jul 15, 2008
- Nippon Sheet Glass Company, Limited
- Hirotaka Koyo
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Processing method for glass substrate, processed glass product and...
- Patent number 7,354,526
- Issue date Apr 8, 2008
- Olympus Corporation
- Takeshi Hidaka
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical element, optical circuit provided with the optical element,...
- Patent number 7,349,612
- Issue date Mar 25, 2008
- Nippon Sheet Glass Company, Limited
- Junji Nishii
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for producing aspherical structure, and aspherical lens arra...
- Patent number 7,329,372
- Issue date Feb 12, 2008
- Nippon Sheet Glass Co., Ltd.
- Keiji Tsunetomo
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Photonic crystal waveguide, homogeneous medium waveguide, and optic...
- Patent number 7,310,468
- Issue date Dec 18, 2007
- Nippon Sheet Glass Company Limited
- Shigeo Kittaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Optical element and wavelength separator using the same
- Patent number 7,305,155
- Issue date Dec 4, 2007
- Nippon Sheet Glass Company, Limited
- Kazuaki Oya
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Waveguide element using photonic crystal
- Patent number 7,260,300
- Issue date Aug 21, 2007
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Glass structure and method for producing the same
- Patent number 7,217,448
- Issue date May 15, 2007
- Nippon Sheet Glass Co., Ltd.
- Hirotaka Koyo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Spectrometer using diffraction grating
- Patent number 7,170,600
- Issue date Jan 30, 2007
- Nippon Sheet Glass Company, Limited
- Junji Nishii
- G01 - MEASURING TESTING
Information Patent Grant
Optical element using one-dimensional photonic crystal and spectros...
- Patent number 7,068,903
- Issue date Jun 27, 2006
- Nippon Sheet Glass Co., Ltd.
- Shigeo Kittaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Deposit detector and controller using the detector
- Patent number 7,034,932
- Issue date Apr 25, 2006
- Niles Co., Ltd.
- Fumitoshi Kobayashi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Optical element and spectroscopic device using the same
- Patent number 7,009,701
- Issue date Mar 7, 2006
- Nippon Sheet Glass Co., Ltd.
- Shigeo Kittaka
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Deposit detector and control device using it
- Patent number 7,002,480
- Issue date Feb 21, 2006
- Niles Co., Ltd.
- Fumitoshi Kobayashi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Method for forming micro groove structure
- Patent number 6,998,350
- Issue date Feb 14, 2006
- Nippon Sheet Glass Co., Ltd.
- Tatsuhiro Nakazawa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ILLUMINATION DEVICE, LENS, SET OF DIFFUSION ELEMENT AND LENS, SENSO...
- Publication number 20240027650
- Publication date Jan 25, 2024
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- G02 - OPTICS
Information Patent Application
ILLUMINATION DEVICE
- Publication number 20230258312
- Publication date Aug 17, 2023
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- F21 - LIGHTING
Information Patent Application
RADIATION ANGLE CHANGING ELEMENT AND LIGHT EMITTING DEVICE
- Publication number 20220034477
- Publication date Feb 3, 2022
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- F21 - LIGHTING
Information Patent Application
GLASS SUBSTRATE WITH THROUGH GLASS VIAS
- Publication number 20200303188
- Publication date Sep 24, 2020
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
OPTICAL RECEIVER AND OPTICAL COMMUNICATION DEVICE
- Publication number 20200064568
- Publication date Feb 27, 2020
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- G02 - OPTICS
Information Patent Application
IMAGE SENSOR UNIT AND IMAGE READING DEVICE
- Publication number 20200014813
- Publication date Jan 9, 2020
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- G02 - OPTICS
Information Patent Application
SUBSTRATE WITH GLASS SHEET, RESIN LAYER AND THROUGH-GLASS VIA
- Publication number 20190362987
- Publication date Nov 28, 2019
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
OPTICAL COMPONENT AND METHOD OF MANUFACTURING OPTICAL COMPONENT
- Publication number 20190339423
- Publication date Nov 7, 2019
- Nippon Sheet Glass Company, Limited
- Keiji Tsunetomo
- G02 - OPTICS
Information Patent Application
GLASS FOR LASER PROCESSING
- Publication number 20190248698
- Publication date Aug 15, 2019
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
METHOD FOR PRODUCING GLASS SUBSTRATE WITH THROUGH GLASS VIAS AND GL...
- Publication number 20190148142
- Publication date May 16, 2019
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
METHOD FOR PRODUCING GLASS SUBSTRATE WITH THROUGH GLASS VIAS AND GL...
- Publication number 20170358447
- Publication date Dec 14, 2017
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
METHOD FOR PRODUCING GLASS SUBSTRATE AND GLASS SHEET
- Publication number 20170229318
- Publication date Aug 10, 2017
- Nippon Sheet Glass Company, Limited
- Keiji TSUNETOMO
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
GLASS FOR LASER MACHINING
- Publication number 20100216625
- Publication date Aug 26, 2010
- Nippon Sheet Glass Company, Limited
- Masanori SHOJIYA
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
TRANSMISSION TYPE POLARIZING ELEMENT, AND COMPOSITE POLARIZING PLAT...
- Publication number 20090316262
- Publication date Dec 24, 2009
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Application
Glass Substrate Processing Method and Glass Component
- Publication number 20090291261
- Publication date Nov 26, 2009
- OLYMPUS CORPORATION
- Takeshi Hidaka
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Polarization Split Element and Production Method Thereof, and Optic...
- Publication number 20090128908
- Publication date May 21, 2009
- Tatsuhiro Nakazawa
- G02 - OPTICS
Information Patent Application
Glass Processing Method Using Laser and Processing Device
- Publication number 20090013724
- Publication date Jan 15, 2009
- Nippon Sheet Glass Company, Limited
- Hirotaka Koyo
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Waveguide Element, Method for Producing the Waveguide Element, and...
- Publication number 20080304787
- Publication date Dec 11, 2008
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Application
Processing Method for Glass Substrate, Processed Glass Product and...
- Publication number 20080209950
- Publication date Sep 4, 2008
- OLYMPUS CORPORATION
- Takeshi HIDAKA
- G11 - INFORMATION STORAGE
Information Patent Application
Optical waveguide device
- Publication number 20080107388
- Publication date May 8, 2008
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Application
Transmissive diffraction grating, and spectral separation element a...
- Publication number 20080074748
- Publication date Mar 27, 2008
- Nippon Sheet Glass Company, Limited
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Application
Method for manaufacturing glass substrate having uneven surface
- Publication number 20070138130
- Publication date Jun 21, 2007
- NIPPON SHEET GLASS COMPANY, LIMITED
- Junji Kurachi
- G11 - INFORMATION STORAGE
Information Patent Application
Waveguide element using photonic crystal
- Publication number 20070058915
- Publication date Mar 15, 2007
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Application
Optical path conversion element
- Publication number 20070025657
- Publication date Feb 1, 2007
- Nippon Sheet Glass Company Limited
- Kazuaki Oya
- G02 - OPTICS
Information Patent Application
Photonic crystal waveguide, homogeneous medium waveguide, and optic...
- Publication number 20060251368
- Publication date Nov 9, 2006
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Application
Photonic crystal optical waveguide
- Publication number 20060140567
- Publication date Jun 29, 2006
- NIPPON SHEET GLASS COMPANY, LIMITED
- Shigeo Kittaka
- G02 - OPTICS
Information Patent Application
Glass for laser processing
- Publication number 20060094584
- Publication date May 4, 2006
- Masanori Shojiya
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Application
Spectrometer using diffraction grating
- Publication number 20060023212
- Publication date Feb 2, 2006
- Junji Nishii
- G02 - OPTICS
Information Patent Application
Optical element and wavelength separator using the same
- Publication number 20050271322
- Publication date Dec 8, 2005
- NIPPON SHEET GLASS COMPANY, LIMITED
- Kazuaki Oya
- G02 - OPTICS
Information Patent Application
Glass capable of being machined by laser
- Publication number 20050233889
- Publication date Oct 20, 2005
- NIPPON SHEET GLASS COMPANY, LIMITED
- Hirotaka Koyo
- C03 - GLASS MINERAL OR SLAG WOOL

Keiji Tsunetomo

Person

Patents Grantslast 30 patents

Optical component and method of manufacturing optical component

Illumination device

Radiation angle changing element and light emitting device

Substrate with glass sheet, resin layer and through-glass via

Image sensor unit and image reading device

Method for producing glass substrate with through glass vias and gl...

Method for producing glass substrate and glass sheet

Method for producing glass substrate with through glass vias and gl...

Glass substrate processing method and glass component

Waveguide element, method for producing the waveguide element, and...

Transmissive diffraction grating, and spectral separation element a...

Multilayer structure and method for manufacturing the same

Glass for laser processing

Optical waveguide device

Waveguide element using photonic crystal

Method of manufacturing article having uneven surface

Glass for laser processing

Processing method for glass substrate, processed glass product and...

Optical element, optical circuit provided with the optical element,...

Method for producing aspherical structure, and aspherical lens arra...

Photonic crystal waveguide, homogeneous medium waveguide, and optic...

Optical element and wavelength separator using the same

Waveguide element using photonic crystal

Glass structure and method for producing the same

Spectrometer using diffraction grating

Optical element using one-dimensional photonic crystal and spectros...

Deposit detector and controller using the detector

Optical element and spectroscopic device using the same

Deposit detector and control device using it

Method for forming micro groove structure

Patents Applicationslast 30 patents

ILLUMINATION DEVICE, LENS, SET OF DIFFUSION ELEMENT AND LENS, SENSO...

ILLUMINATION DEVICE

RADIATION ANGLE CHANGING ELEMENT AND LIGHT EMITTING DEVICE

GLASS SUBSTRATE WITH THROUGH GLASS VIAS

OPTICAL RECEIVER AND OPTICAL COMMUNICATION DEVICE

IMAGE SENSOR UNIT AND IMAGE READING DEVICE

SUBSTRATE WITH GLASS SHEET, RESIN LAYER AND THROUGH-GLASS VIA

OPTICAL COMPONENT AND METHOD OF MANUFACTURING OPTICAL COMPONENT

GLASS FOR LASER PROCESSING

METHOD FOR PRODUCING GLASS SUBSTRATE WITH THROUGH GLASS VIAS AND GL...

METHOD FOR PRODUCING GLASS SUBSTRATE WITH THROUGH GLASS VIAS AND GL...

METHOD FOR PRODUCING GLASS SUBSTRATE AND GLASS SHEET

GLASS FOR LASER MACHINING

TRANSMISSION TYPE POLARIZING ELEMENT, AND COMPOSITE POLARIZING PLAT...

Glass Substrate Processing Method and Glass Component

Polarization Split Element and Production Method Thereof, and Optic...

Glass Processing Method Using Laser and Processing Device

Waveguide Element, Method for Producing the Waveguide Element, and...

Processing Method for Glass Substrate, Processed Glass Product and...

Optical waveguide device

Transmissive diffraction grating, and spectral separation element a...

Method for manaufacturing glass substrate having uneven surface

Waveguide element using photonic crystal

Optical path conversion element

Photonic crystal waveguide, homogeneous medium waveguide, and optic...

Photonic crystal optical waveguide

Glass for laser processing

Spectrometer using diffraction grating

Optical element and wavelength separator using the same

Glass capable of being machined by laser