Hiromichi Koyama

Person

Okayama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a switch panel to be disposed close to a ma...
- Patent number 7,350,285
- Issue date Apr 1, 2008
- Matsushita Electric Industrial Co., Ltd.
- Hideki Mitsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Movable contact element and panel switch formed using the same
- Patent number 7,329,823
- Issue date Feb 12, 2008
- Matsushita Electric Industrial Co., Ltd.
- Akira Sadamori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Movable contact unit arrangement including a movable contact unit a...
- Patent number 7,196,282
- Issue date Mar 27, 2007
- Matsushita Electric Industrial Co., Ltd.
- Hideki Mitsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Movable contact unit and panel switch
- Patent number 7,186,939
- Issue date Mar 6, 2007
- Matsushita Electric Industrial Co., Ltd.
- Naoki Sera
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing a movable contact unit to be disposed close...
- Patent number 7,178,223
- Issue date Feb 20, 2007
- Matsushita Electric Industrial Co., Ltd.
- Hideki Mitsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Movable contact unit, panel switch using the same and electronic eq...
- Patent number 6,906,275
- Issue date Jun 14, 2005
- Matsushita Electric Industrial Co., Ltd.
- Hiromichi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of production of series of a tactile contact units and tacti...
- Patent number 6,634,090
- Issue date Oct 21, 2003
- Matsushita Electric Industrial Co., Ltd.
- Hiromichi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Push switch
- Patent number 6,608,273
- Issue date Aug 19, 2003
- Matsushita Electric Industrial Co., Ltd.
- Hisashi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Switch having improved contact performance
- Patent number 6,333,477
- Issue date Dec 25, 2001
- Matsushita Electric Industrial Co., Ltd.
- Hiromichi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Movable contact element for panel switch and method of manufacturin...
- Patent number 5,845,766
- Issue date Dec 8, 1998
- Matsushita Electric Industrial Co., Ltd.
- Koji Sako
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Method of manufacturing a switch panel to be disposed close to a ma...
- Publication number 20070050972
- Publication date Mar 8, 2007
- Hideki Mitsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Movable contact element and panel switch formed using the same
- Publication number 20060225996
- Publication date Oct 12, 2006
- Akira Sadamori
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Movable contact unit, manufacturing method of the same, and manufac...
- Publication number 20060180456
- Publication date Aug 17, 2006
- Hideki Mitsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Movable contact unit and panel switch
- Publication number 20060125174
- Publication date Jun 15, 2006
- Naoki Sera
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Movable contact unit, manufacturing method of the same, and manufac...
- Publication number 20060081453
- Publication date Apr 20, 2006
- Hideki Mitsuoka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Movable contact unit, panel switch using the same and electronic eq...
- Publication number 20030089585
- Publication date May 15, 2003
- Matsushita Elec. Ind. Co. Ltd.
- Hiromichi Koyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Push switch
- Publication number 20030015411
- Publication date Jan 23, 2003
- Hisashi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method for production of series of tactile contact units and tactil...
- Publication number 20020020613
- Publication date Feb 21, 2002
- Hiromichi Koyama
- H01 - BASIC ELECTRIC ELEMENTS

Hiromichi Koyama

Person

Patents Grantslast 30 patents

Method of manufacturing a switch panel to be disposed close to a ma...

Movable contact element and panel switch formed using the same

Movable contact unit arrangement including a movable contact unit a...

Movable contact unit and panel switch

Method of manufacturing a movable contact unit to be disposed close...

Movable contact unit, panel switch using the same and electronic eq...

Method of production of series of a tactile contact units and tacti...

Push switch

Switch having improved contact performance

Movable contact element for panel switch and method of manufacturin...

Patents Applicationslast 30 patents

Method of manufacturing a switch panel to be disposed close to a ma...

Movable contact element and panel switch formed using the same

Movable contact unit, manufacturing method of the same, and manufac...

Movable contact unit and panel switch

Movable contact unit, manufacturing method of the same, and manufac...

Movable contact unit, panel switch using the same and electronic eq...

Push switch

Method for production of series of tactile contact units and tactil...