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Hiroaki Yanagita
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Polarizing element and process for producing polarizing element
Patent number
8,988,775
Issue date
Mar 24, 2015
Hoya Corporation
Hiroaki Yanagita
G02 - OPTICS
Information
Patent Grant
Optical glass, glass material for press molding, optical element, a...
Patent number
8,479,539
Issue date
Jul 9, 2013
Hoya Corporation
Yoshiko Kasuga
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Light-emitting device of field-effect transistor type
Patent number
7,897,976
Issue date
Mar 1, 2011
Hoya Corporation
Hiroshi Kawazoe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Quantum dot-dispersed light emitting device, and manufacturing meth...
Patent number
7,880,377
Issue date
Feb 1, 2011
Hoya Corporation
Masahiro Orita
B82 - NANO-TECHNOLOGY
Information
Patent Grant
P-type ZnS based semiconductor material having a low resistance due...
Patent number
7,612,432
Issue date
Nov 3, 2009
Hoya Corporation
Hiroaki Yanagita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electrode material and semiconductor element
Patent number
7,355,213
Issue date
Apr 8, 2008
Hoya Corporation
Hiroshi Kawazoe
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Grant
Optical glass, glass material for press molding, optical element, a...
Patent number
7,015,164
Issue date
Mar 21, 2006
Hoya Corporation
Yoshiko Kasuga
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
WDM optical filter and glass substrate for use in the WDM optical f...
Patent number
6,465,105
Issue date
Oct 15, 2002
Hoya Corporation
Robert W. Johnson
G02 - OPTICS
Information
Patent Grant
Optical fibers and optical fiber amplifiers
Patent number
5,856,882
Issue date
Jan 5, 1999
Hoya Corporation
Hiroaki Yanagita
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Laser glasses and laser glass fibers
Patent number
5,764,661
Issue date
Jun 9, 1998
Hoya Corporation
Hiromasa Tawarayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Faraday rotation glass
Patent number
5,246,892
Issue date
Sep 21, 1993
Hoya Corporation
Hiroaki Yanagita
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Halide laser glass and laser device utilizing the glass
Patent number
5,070,506
Issue date
Dec 3, 1991
Hoya Corporation
Hiroaki Yanagita
C03 - GLASS MINERAL OR SLAG WOOL
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL GLASS, GLASS MATERIAL FOR PRESS MOLDING, OPTICAL ELEMENT, A...
Publication number
20130337992
Publication date
Dec 19, 2013
Yoshiko KASUGA
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
DICHROIC DYE-CONTAINING LIQUID, AND POLARIZER
Publication number
20130050823
Publication date
Feb 28, 2013
HOYA CORPORATION
Tsuyoshi Inaba
G02 - OPTICS
Information
Patent Application
POLARIZING ELEMENT AND PROCESS FOR PRODUCING POLARIZING ELEMENT
Publication number
20110102892
Publication date
May 5, 2011
HOYA CORPORATION
Hiroaki Yanagita
G02 - OPTICS
Information
Patent Application
PROCESS FOR PRODUCING POLARIZING ELEMENT
Publication number
20100104745
Publication date
Apr 29, 2010
HOYA CORPORATION
Hiroaki YANAGITA
G02 - OPTICS
Information
Patent Application
Quantum Dot-Dispersed Light Emitting Device, and Manufacturing Meth...
Publication number
20080122341
Publication date
May 29, 2008
HOYA CORPORATION
Masahiro Orita
B82 - NANO-TECHNOLOGY
Information
Patent Application
Semiconductor material and semiconductor device using the same
Publication number
20070181904
Publication date
Aug 9, 2007
Hoya Corporation
Hiroaki Yanagita
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light-emitting diode
Publication number
20060261350
Publication date
Nov 23, 2006
Hiroshi Kawazoe
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical glass, glass material for press molding, optical element, a...
Publication number
20060105897
Publication date
May 18, 2006
Hoya Corporation
Yoshiko Kasuga
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Light-emitting device of field-effect transistor type
Publication number
20060043380
Publication date
Mar 2, 2006
Kawazoe Hiroshi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical glass, glass material for press molding, optical element, a...
Publication number
20030096694
Publication date
May 22, 2003
HOYA CORPORATION
Yoshiko Kasuga
C03 - GLASS MINERAL OR SLAG WOOL