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Ryoji Yokotani
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Hirakata-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
LED lamp device having a fluorescent element shaped for uniform lig...
Patent number
9,991,236
Issue date
Jun 5, 2018
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Hiroshi Imamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
LED lamp device having a fluorescent element shaped for uniform lig...
Patent number
9,099,333
Issue date
Aug 4, 2015
Universal Lighting Technologies, Inc.
Hiroshi Imamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lead frame, wiring board, light emitting unit, and illuminating app...
Patent number
8,967,827
Issue date
Mar 3, 2015
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Yoji Urano
F21 - LIGHTING
Information
Patent Grant
Lighting device topology for reducing unevenness in LED luminance a...
Patent number
8,894,251
Issue date
Nov 25, 2014
Panasonic Corporation
Ryoji Yokotani
F21 - LIGHTING
Information
Patent Grant
Light emitting device and illumination apparatus including same
Patent number
8,876,311
Issue date
Nov 4, 2014
Panasonic Corporation
Ryoji Yokotani
F21 - LIGHTING
Information
Patent Grant
Light emitting device and illumination apparatus using same
Patent number
8,592,836
Issue date
Nov 26, 2013
Panasonic Corporation
Ryoji Yokotani
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting device and illumination apparatus including same
Patent number
8,558,456
Issue date
Oct 15, 2013
Panasonic Corporation
Ryoji Yokotani
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting device using light emitting diode chip
Patent number
7,717,589
Issue date
May 18, 2010
Panasonic Electric Works Co., Ltd.
Kouji Nishioka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light-emitting device
Patent number
7,495,322
Issue date
Feb 24, 2009
Panasonic Electric Works Co., Ltd.
Takuma Hashimoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting device using LED
Patent number
7,084,435
Issue date
Aug 1, 2006
Matsushita Electric Works, Ltd.
Masaru Sugimoto
F21 - LIGHTING
Patents Applications
last 30 patents
Information
Patent Application
LIGHT-EMITTING APPARATUS AND ILLUMINATION APPARATUS
Publication number
20170040506
Publication date
Feb 9, 2017
Panasonic Intellectual Property Management Co., Ltd.
Masumi ABE
F21 - LIGHTING
Information
Patent Application
LIGHTING DEVICE
Publication number
20160258603
Publication date
Sep 8, 2016
Panasonic Intellectual Property Management Co., Ltd.
Ryoji YOKOTANI
F21 - LIGHTING
Information
Patent Application
LED LAMP DEVICE HAVING A FLUORESCENT ELEMENT SHAPED FOR UNIFORM LIG...
Publication number
20160005719
Publication date
Jan 7, 2016
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO. LTD.
Hiroshi Imamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LEAD FRAME, WIRING BOARD, LIGHT EMITTING UNIT, AND ILLUMINATING APP...
Publication number
20130070452
Publication date
Mar 21, 2013
PANASONIC CORPORATION
Yoji Urano
F21 - LIGHTING
Information
Patent Application
LIGHT EMITTING DEVICE AND ILLUMINATION APPARATUS INCLUDING SAME
Publication number
20120275150
Publication date
Nov 1, 2012
PANASONIC CORPORATION
Ryoji YOKOTANI
G02 - OPTICS
Information
Patent Application
LIGHT EMITTING DEVICE AND ILLUMINATION APPARATUS INCLUDING SAME
Publication number
20120274203
Publication date
Nov 1, 2012
PANASONIC CORPORATION
Ryoji YOKOTANI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHT EMITTING DEVICE AND ILLUMINATION APPARATUS USING SAME
Publication number
20120153313
Publication date
Jun 21, 2012
Panasonic Electric Works Co., Ltd.
Ryoji YOKOTANI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
LIGHTING DEVICE TOPOLOGY FOR REDUCING UNEVENNESS IN LED LUMINANCE A...
Publication number
20120106125
Publication date
May 3, 2012
Ryoji Yokotani
F21 - LIGHTING
Information
Patent Application
LED LAMP DEVICE HAVING A FLUORESCENT ELEMENT SHAPED FOR UNIFORM LIG...
Publication number
20110058369
Publication date
Mar 10, 2011
Hiroshi Imamura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light emitting device using light emitting diode chip
Publication number
20070085103
Publication date
Apr 19, 2007
MATSUSHITA ELECTRIC WORKS, Ltd.
Kouji Nishioka
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light-emitting device
Publication number
20070007540
Publication date
Jan 11, 2007
MATSUSHITA ELECTRIC WORKS, Ltd.
Takuma Hashimoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Light emitting element, lighting device and surface emission illumi...
Publication number
20060175625
Publication date
Aug 10, 2006
Ryoji Yokotani
G02 - OPTICS
Information
Patent Application
Light emitting device using led
Publication number
20040190304
Publication date
Sep 30, 2004
Masaru Sugimoto
F21 - LIGHTING