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Kengo Nishi
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Key sheets and method of producing the same
Patent number
7,262,379
Issue date
Aug 28, 2007
Polymatech Co., Ltd.
Takeshi Nishimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Highly recyclable keypad with a key top and method of separating th...
Patent number
7,099,465
Issue date
Aug 29, 2006
Polymatech Co., Ltd.
Kengo Nishi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Active energy ray-curing adhesive composition and keypad for a push...
Patent number
6,723,936
Issue date
Apr 20, 2004
Denki Kagaku Kogyo Kabushiki Kaisha
Nobuyuki Ootsuka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for manufacturing key pad with rigid resin key top
Patent number
6,451,143
Issue date
Sep 17, 2002
Polymatech Co., Ltd.
Kengo Nishi
B44 - DECORATIVE ARTS
Information
Patent Grant
Key pad with rigid key top having both silicone and urethane adhesi...
Patent number
6,224,278
Issue date
May 1, 2001
Polymatech Co., Ltd.
Kengo Nishi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Patents Applications
last 30 patents
Information
Patent Application
KEY SHEET
Publication number
20100164870
Publication date
Jul 1, 2010
Tedi Kunthady
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Key sheets and method of producing the same
Publication number
20060278510
Publication date
Dec 14, 2006
POLYMATECH CO., LTD.
Takeshi Nishimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Key sheets and method of producing the same
Publication number
20040200712
Publication date
Oct 14, 2004
Takeshi Nishimura
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Active energy ray-curing adhesive composition and keypad for a push...
Publication number
20030196882
Publication date
Oct 23, 2003
Nobuyuki Ootsuka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Highly recyclable keypad with a key top and method of separating th...
Publication number
20020172354
Publication date
Nov 21, 2002
Kengo Nishi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method for manufacturing key pad with rigid resin key top
Publication number
20020000284
Publication date
Jan 3, 2002
POLYMATECH CO., LTD.
Kengo Nishi
B44 - DECORATIVE ARTS