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Hiromi Kitahara
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Hioki-gun, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Luminescent layer and light-emitting semiconductor device
Patent number
RE47453
Issue date
Jun 25, 2019
Panasonic Corporation
Toshihide Maeda
Information
Patent Grant
Light-emitting semiconductor device, light-emitting system and meth...
Patent number
7,772,769
Issue date
Aug 10, 2010
Panasonic Corporation
Toshihide Maeda
F21 - LIGHTING
Information
Patent Grant
Light-emitting semiconductor device, light-emitting system and meth...
Patent number
7,629,620
Issue date
Dec 8, 2009
Panasonic Corporation
Toshihide Maeda
F21 - LIGHTING
Information
Patent Grant
Light-emitting semiconductor device, light-emitting system and meth...
Patent number
7,592,639
Issue date
Sep 22, 2009
Panasonic Corporation
Toshihide Maeda
F21 - LIGHTING
Information
Patent Grant
Lighting apparatus
Patent number
7,557,383
Issue date
Jul 7, 2009
Panasonic Corporation
Kunihiko Obara
F21 - LIGHTING
Information
Patent Grant
Light-emitting semiconductor device, light-emitting system and meth...
Patent number
7,422,504
Issue date
Sep 9, 2008
Matsushita Electric Industrial Co., Ltd.
Toshihide Maeda
F21 - LIGHTING
Information
Patent Grant
Semiconductor light emitting element and light emitting device usin...
Patent number
7,294,956
Issue date
Nov 13, 2007
Matsushita Electric Industrial Co., Ltd.
Toshihide Maeda
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Semiconductor light emitting element and light emitting device usin...
Patent number
7,170,221
Issue date
Jan 30, 2007
Matsushita Electric Industrial Co., Ltd.
Toshihide Maeda
Information
Patent Grant
Light-emitting semiconductor device, light-emitting system and meth...
Patent number
7,023,019
Issue date
Apr 4, 2006
Matsushita Electric Industrial Co., Ltd.
Toshihide Maeda
F21 - LIGHTING
Information
Patent Grant
Light emitting diode
Patent number
6,791,116
Issue date
Sep 14, 2004
Toyoda Gosei Co., Ltd.
Yuji Takahashi
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Light-emitting semiconductor device, light-emitting system and meth...
Publication number
20080135862
Publication date
Jun 12, 2008
Matsushita Electric Industrial Co., Ltd.
Toshihide Maeda
F21 - LIGHTING
Information
Patent Application
Lighting apparatus
Publication number
20070097684
Publication date
May 3, 2007
Kunihiko Obara
F21 - LIGHTING
Information
Patent Application
Light-emitting semiconductor device, light-emitting system and meth...
Publication number
20070046169
Publication date
Mar 1, 2007
Matsushita Electric Industrial Co., Ltd.
Toshihide Maeda
F21 - LIGHTING
Information
Patent Application
Light-emitting semiconductor device, light-emitting system and meth...
Publication number
20060124942
Publication date
Jun 15, 2006
Matsushita Electric Industrial Co., Ltd.
Toshihide Maeda
F21 - LIGHTING
Information
Patent Application
Light-emitting semiconductor device, light-emitting system and meth...
Publication number
20050227569
Publication date
Oct 13, 2005
Matsushita Electric Industrial Co., Ltd.
Toshihide Maeda
F21 - LIGHTING
Information
Patent Application
Semiconductor light emitting element and light emitting device usin...
Publication number
20040245532
Publication date
Dec 9, 2004
Toshihide Maeda
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Semiconductor light emitting device, light emitting apparatus and p...
Publication number
20040104391
Publication date
Jun 3, 2004
Toshihide Maeda
F21 - LIGHTING
Information
Patent Application
Light emitting diode
Publication number
20030214233
Publication date
Nov 20, 2003
Toyoda Gosei Co., Ltd.
Yuji Takahashi
H01 - BASIC ELECTRIC ELEMENTS