Masaya Katori

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Key sheet
- Patent number 7,737,375
- Issue date Jun 15, 2010
- Polymatech Co., Ltd.
- Masaya Katori
- H01 - BASIC ELECTRIC ELEMENTS
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
Key sheet
- Patent number 6,607,812
- Issue date Aug 19, 2003
- Polymatech Co., Ltd.
- Masaya Katori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key sheet and method for manufacturing the same
- Patent number 6,382,855
- Issue date May 7, 2002
- Polymatech Co., Ltd.
- Masaya Katori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Manufacturing method of color keypad for a contact of character ill...
- Patent number 6,180,048
- Issue date Jan 30, 2001
- Polymatech Co., Ltd.
- Masaya Katori
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Keysheet
- Publication number 20070246342
- Publication date Oct 25, 2007
- Polymatech Co., Ltd.
- Masaya Katori
- 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
Key sheet
- Publication number 20010051254
- Publication date Dec 13, 2001
- Masaya katori
- H01 - BASIC ELECTRIC ELEMENTS