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Yoichi Tsuda
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Yamatotakada, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Light emitting apparatus, backlight apparatus, and electronic appar...
Patent number
7,490,959
Issue date
Feb 17, 2009
Sharp Kabushiki Kaisha
Yoichi Tsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vacuum diode-type electronic heat pump device and electronic equipm...
Patent number
7,327,026
Issue date
Feb 5, 2008
Sharp Kabushiki Kaisha
Kenji Shimogishi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Electronic heat pump device, laser component, optical pickup and el...
Patent number
7,211,891
Issue date
May 1, 2007
Sharp Kabushiki Kaisha
Kenji Shimogishi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Optical pickup apparatus
Patent number
7,042,819
Issue date
May 9, 2006
Sharp Kabushiki Kaisha
Yoichi Tsuda
G11 - INFORMATION STORAGE
Information
Patent Grant
Voltage-controlled variable-passband filter and high-frequency circ...
Patent number
6,018,282
Issue date
Jan 25, 2000
Sharp Kabushiki Kaisha
Yoichi Tsuda
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Light emitting display device having light receiving element for re...
Patent number
5,546,496
Issue date
Aug 13, 1996
Sharp Kabushiki Kaisha
Masahiko Kimoto
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Light emitting apparatus, backlight apparatus, and electronic appar...
Publication number
20070139908
Publication date
Jun 21, 2007
SHARP KABUSHIKI KAISHA
Yoichi Tsuda
G02 - OPTICS
Information
Patent Application
Electronic heat pump device, laser component, optical pickup and el...
Publication number
20050110099
Publication date
May 26, 2005
Kenji Shimogishi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
Electronic heat pump device, electronic equipment using electronic...
Publication number
20050104185
Publication date
May 19, 2005
Sharp Kabushiki Kaisha
Kenji Shimogishi
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...