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Kenji Sakai
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Power supply device and luminaire
Patent number
9,167,653
Issue date
Oct 20, 2015
Toshiba Lighting & Technology Corporation
Koji Takahashi
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Power supply device with smoothing capacitor and falling voltage ch...
Patent number
8,976,558
Issue date
Mar 10, 2015
Toshiba Lighting & Technology Corporation
Go Kato
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Lamp apparatus and lamp apparatus manufacturing method
Patent number
6,582,269
Issue date
Jun 24, 2003
Toshiba Lighting & Technology Corporation
Kenji Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Bulb and a method for welding a pipe and a conductive wire thereof
Patent number
6,492,771
Issue date
Dec 10, 2002
Toshiba Lighting & Technology Corporation
Hirosumi Cho
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Lamp device and method of bonding mirror reflector to lamp
Patent number
5,178,712
Issue date
Jan 12, 1993
Toshiba Lighting & Technology Corp.
Kenji Sakai
F21 - LIGHTING
Patents Applications
last 30 patents
Information
Patent Application
POWER SUPPLY DEVICE AND LUMINAIRE
Publication number
20140084813
Publication date
Mar 27, 2014
Koji TAKAHASHI
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Power Supply Device, Luminaire, and Control Method for the Power Su...
Publication number
20130310997
Publication date
Nov 21, 2013
Koji Takahashi
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
POWER SUPPLY DEVICE
Publication number
20130010509
Publication date
Jan 10, 2013
Toshiba Lighting & Technology Corporation
Go KATO
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Lamp apparatus and lamp apparatus manufacturing method
Publication number
20020021070
Publication date
Feb 21, 2002
Toshiba Lighting and Technology Corporation
Kenji Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Lamp apparatus and lamp apparatus manufacturing method
Publication number
20010038261
Publication date
Nov 8, 2001
Toshiba Lighting and Technology Corporation
Kenji Sakai
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Bulb and a method for welding a pipe and a conductive wire thereof
Publication number
20010028219
Publication date
Oct 11, 2001
Hirosumi Cho
H01 - BASIC ELECTRIC ELEMENTS