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Tadashi Hamada
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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Razor blade
Patent number
7,124,511
Issue date
Oct 24, 2006
Matsushita Electric Works, Ltd.
Tadashi Hamada
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Electric razor inner blade unit
Patent number
6,951,056
Issue date
Oct 4, 2005
Matsushita Electric Works, Ltd.
Hiroyuki Kameoka
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Blade of electric shaver, method for shaving by using the same, and...
Patent number
6,637,113
Issue date
Oct 28, 2003
Matsushita Electric Works, Ltd.
Toshio Ikuta
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Stainless steel coated with intermetallic compound and process for...
Patent number
6,194,088
Issue date
Feb 27, 2001
Daido Steel Co., Ltd.
Hiroaki Yoshida
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Ferrous alloy with Fe-Al diffusion layer and method of making the same
Patent number
5,981,089
Issue date
Nov 9, 1999
Matsushita Electric Works, Ltd.
Junji Imai
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Cutter combination for an electric shaver
Patent number
5,857,260
Issue date
Jan 12, 1999
Matsushita Electric Works, Ltd.
Shuji Yamada
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Grant
Process of preparing Fe-Cr-Ni-Al ferritic alloys
Patent number
5,226,984
Issue date
Jul 13, 1993
Matsushita Electric Works, Ltd.
Tadashi Hamada
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Process of preparing a ferritic alloy with a wear-resistive alumina...
Patent number
5,156,805
Issue date
Oct 20, 1992
Matsushita Electric Works, Ltd.
Junji Imai
B22 - CASTING POWDER METALLURGY
Information
Patent Grant
Fe-Cr-Ni-Al ferritic alloys
Patent number
5,089,223
Issue date
Feb 18, 1992
Matsushital Electric Works, Ltd.
Tadashi Hamada
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information
Patent Grant
Fe-Cr-Al type implant alloy composite for medical treatment
Patent number
4,668,585
Issue date
May 26, 1987
Osaka Prefecture, Horonobu Oonishi and Kyocera Corporation
Eiji Tsuji
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Patents Applications
last 30 patents
Information
Patent Application
Razor blade
Publication number
20040143975
Publication date
Jul 29, 2004
Tadashi Hamada
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Application
Electric razor inner blade unit
Publication number
20040123466
Publication date
Jul 1, 2004
Hiroyuki Kameoka
B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information
Patent Application
Blade of electric shaver, method for shaving by using the same, and...
Publication number
20020059729
Publication date
May 23, 2002
Toshio Ikuta
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC