Kenichi Harada

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical sheet for backlight unit and backlight unit
- Patent number 10,754,083
- Issue date Aug 25, 2020
- Keiwa Inc.
- Kenichi Harada
- B32 - LAYERED PRODUCTS
Information Patent Grant
Diffusion sheet, backlight unit, and liquid crystal display device
- Patent number 10,539,721
- Issue date Jan 21, 2020
- Keiwa Inc.
- Tadayuki Nonaka
- G02 - OPTICS
Information Patent Grant
Prism sheet for backlight unit and backlight unit for liquid crysta...
- Patent number 10,466,405
- Issue date Nov 5, 2019
- Keiwa Inc.
- Kenichi Harada
- G02 - OPTICS
Information Patent Grant
Optical sheet for liquid crystal display device, and backlight unit...
- Patent number 10,459,151
- Issue date Oct 29, 2019
- Keiwa Inc.
- Kenichi Harada
- G02 - OPTICS
Information Patent Grant
Optical sheet for liquid crystal display device, backlight unit for...
- Patent number 10,386,567
- Issue date Aug 20, 2019
- Keiwa Inc.
- Kenichi Harada
- G02 - OPTICS
Information Patent Grant
Optical waveguide sheet, backlight unit, and portable terminal
- Patent number 9,977,171
- Issue date May 22, 2018
- Keiwa Inc.
- Hironori Nakashima
- G02 - OPTICS
Information Patent Grant
Optical waveguide sheet, backlight unit, and portable terminal
- Patent number 9,588,277
- Issue date Mar 7, 2017
- Keiwa Inc.
- Hironori Nakashima
- G02 - OPTICS
Information Patent Grant
Optical sheet for use in an edge light type backlight unit
- Patent number 9,541,700
- Issue date Jan 10, 2017
- Keiwa Inc.
- Kenichi Harada
- G02 - OPTICS
Information Patent Grant
Optical sheet for use in an edge light type backlight unit
- Patent number 9,507,075
- Issue date Nov 29, 2016
- Keiwa Inc.
- Kenichi Harada
- G02 - OPTICS
Information Patent Grant
Liquid crystal display module comprising a transparent media layer...
- Patent number 8,928,843
- Issue date Jan 6, 2015
- Keiwa Inc.
- Kenichi Harada
- G02 - OPTICS
Information Patent Grant
Disc apparatus for recording and/or reproducing information for use...
- Patent number 8,151,284
- Issue date Apr 3, 2012
- Sony Corporation
- Kenichi Harada
- G11 - INFORMATION STORAGE
Information Patent Grant
Substrate film for optical sheets, optical sheet, and liquid crysta...
- Patent number 7,986,388
- Issue date Jul 26, 2011
- Keiwa Inc.
- Kenichi Harada
- G02 - OPTICS
Information Patent Grant
Liquid crystal display module
- Patent number 7,755,727
- Issue date Jul 13, 2010
- Keiwa Inc.
- Kenichi Harada
- G02 - OPTICS
Information Patent Grant
Light diffusion sheet and backlight unit using the same
- Patent number 6,871,994
- Issue date Mar 29, 2005
- Keiwa Kabushiki Kaisha
- Kenichi Harada
- F21 - LIGHTING
Information Patent Grant
Light diffusion sheet and backlight unit using the same
- Patent number 6,709,143
- Issue date Mar 23, 2004
- Keiwa Kabushiki Kaisha
- Kenichi Harada
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
DIFFUSION SHEET, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE
- Publication number 20190219744
- Publication date Jul 18, 2019
- KEIWA INC.
- Tadayuki Nonaka
- G02 - OPTICS
Information Patent Application
OPTICAL SHEET FOR BACKLIGHT UNIT AND BACKLIGHT UNIT
- Publication number 20180364411
- Publication date Dec 20, 2018
- KEIWA INC.
- Kenichi HARADA
- B32 - LAYERED PRODUCTS
Information Patent Application
OPTICAL SHEET FOR LIQUID CRYSTAL DISPLAY DEVICE, AND BACKLIGHT UNIT...
- Publication number 20180180794
- Publication date Jun 28, 2018
- KEIWA INC.
- Kenichi HARADA
- G02 - OPTICS
Information Patent Application
PRISM SHEET FOR BACKLIGHT UNIT AND BACKLIGHT UNIT FOR LIQUID CRYSTA...
- Publication number 20170357047
- Publication date Dec 14, 2017
- KEIWA INC.
- Kenichi HARADA
- G02 - OPTICS
Information Patent Application
OPTICAL SHEET FOR LIQUID CRYSTAL DISPLAY DEVICE, BACKLIGHT UNIT FOR...
- Publication number 20170329066
- Publication date Nov 16, 2017
- KEIWA INC.
- Kenichi HARADA
- G02 - OPTICS
Information Patent Application
SUBSTRATE FILM FOR OPTICLA SHEET, OPTICAL SHEET AND BACKLIGHT UNIT
- Publication number 20170052308
- Publication date Feb 23, 2017
- KEIWA INC.
- Kenichi HARADA
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE SHEET, BACKLIGHT UNIT, AND PORTABLE TERMINAL
- Publication number 20150234113
- Publication date Aug 20, 2015
- KEIWA INC.
- Hironori NAKASHIMA
- G02 - OPTICS
Information Patent Application
OPTICAL WAVEGUIDE SHEET, BACKLIGHT UNIT, AND PORTABLE TERMINAL
- Publication number 20150234114
- Publication date Aug 20, 2015
- KEIWA INC.
- Hironori NAKASHIMA
- G02 - OPTICS
Information Patent Application
Disc apparatus
- Publication number 20110010730
- Publication date Jan 13, 2011
- SONY CORPORATION
- Kenichi Harada
- G11 - INFORMATION STORAGE
Information Patent Application
Light diffusion sheet and backlight unit using the same
- Publication number 20040047163
- Publication date Mar 11, 2004
- ARCO PATENT OFFICE
- Kenichi Harada
- G02 - OPTICS
Information Patent Application
Light diffusion sheet and backlight unit using the same
- Publication number 20020114169
- Publication date Aug 22, 2002
- Kenichi Harada
- G02 - OPTICS

Kenichi Harada

Person

Patents Grantslast 30 patents

Optical sheet for backlight unit and backlight unit

Diffusion sheet, backlight unit, and liquid crystal display device

Prism sheet for backlight unit and backlight unit for liquid crysta...

Optical sheet for liquid crystal display device, and backlight unit...

Optical sheet for liquid crystal display device, backlight unit for...

Optical waveguide sheet, backlight unit, and portable terminal

Optical waveguide sheet, backlight unit, and portable terminal

Optical sheet for use in an edge light type backlight unit

Optical sheet for use in an edge light type backlight unit

Liquid crystal display module comprising a transparent media layer...

Disc apparatus for recording and/or reproducing information for use...

Substrate film for optical sheets, optical sheet, and liquid crysta...

Liquid crystal display module

Light diffusion sheet and backlight unit using the same

Light diffusion sheet and backlight unit using the same

Patents Applicationslast 30 patents

DIFFUSION SHEET, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY DEVICE

OPTICAL SHEET FOR BACKLIGHT UNIT AND BACKLIGHT UNIT

OPTICAL SHEET FOR LIQUID CRYSTAL DISPLAY DEVICE, AND BACKLIGHT UNIT...

PRISM SHEET FOR BACKLIGHT UNIT AND BACKLIGHT UNIT FOR LIQUID CRYSTA...

OPTICAL SHEET FOR LIQUID CRYSTAL DISPLAY DEVICE, BACKLIGHT UNIT FOR...

SUBSTRATE FILM FOR OPTICLA SHEET, OPTICAL SHEET AND BACKLIGHT UNIT

OPTICAL WAVEGUIDE SHEET, BACKLIGHT UNIT, AND PORTABLE TERMINAL

OPTICAL WAVEGUIDE SHEET, BACKLIGHT UNIT, AND PORTABLE TERMINAL

Disc apparatus

Light diffusion sheet and backlight unit using the same

Light diffusion sheet and backlight unit using the same