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last 30 patents
Information
Patent Grant
Amine compound and electro-luminescence device comprising same
Patent number
5,707,747
Issue date
Jan 13, 1998
Hodogaya Chemical Co., Ltd.
Hiromitsu Tomiyama
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Plasma surface treating method and apparatus
Patent number
5,268,056
Issue date
Dec 7, 1993
Matsushita Electric Industrial Co., Ltd.
Toshinori Kishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Plasma surface treating method
Patent number
5,221,416
Issue date
Jun 22, 1993
Matsushita Electric Industrial Co., Ltd.
Toshinori Kishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Combination optical data medium with multiple data surfaces and cas...
Patent number
5,134,604
Issue date
Jul 28, 1992
Matsushita Electric Industrial Co., Ltd.
Michiyoshi Nagashima
G11 - INFORMATION STORAGE