Kazutoshi Hayashi

Person

Suzaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Key switch and keyboard
- Patent number 6,618,239
- Issue date Sep 9, 2003
- Fujitsu Limited
- Kouki Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key switch and keyboard
- Patent number 6,501,038
- Issue date Dec 31, 2002
- Fujitsu Takamisawa Component Limited
- Kazutoshi Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key switch and keyboard
- Patent number 6,376,789
- Issue date Apr 23, 2002
- Fujitsu Takamisawa Component Ltd.
- Junichi Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key switch with sliding mechanism and keyboard
- Patent number 6,257,782
- Issue date Jul 10, 2001
- Fujitsu Limited
- Junichi Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key switch for keyboard
- Patent number 6,118,092
- Issue date Sep 12, 2000
- Fujitsu Takamisawa Component Limited
- Kazutoshi Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key switch, keyboard and portable information processing unit with...
- Patent number 5,874,696
- Issue date Feb 23, 1999
- Fujitsu Takamisawa Component Limited
- Kazutoshi Hayashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Detecting apparatus for detecting input operation in a switching ma...
- Patent number 5,081,453
- Issue date Jan 14, 1992
- Fujitsu Limited
- Norio Endoh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Sheet switch
- Patent number 4,994,634
- Issue date Feb 19, 1991
- Fujitsu Limited
- Shigeo Tanji
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Push button switch using dome spring and switch element thereof
- Patent number 4,803,316
- Issue date Feb 7, 1989
- Fujitsu Limited
- Kazutoshi Hayashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Push-button switch and a keyboard comprising the same
- Patent number 4,529,849
- Issue date Jul 16, 1985
- Fujitsu Limited
- Seisuke Kamei
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Key switch and keyboard
- Publication number 20020185364
- Publication date Dec 12, 2002
- Kouki Takahashi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Key switch and keyboard
- Publication number 20010030119
- Publication date Oct 18, 2001
- Junichi Maruyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Key switch and keyboard
- Publication number 20010002647
- Publication date Jun 7, 2001
- Kazutoshi Hayashi
- H01 - BASIC ELECTRIC ELEMENTS

Kazutoshi Hayashi

Person

Patents Grantslast 30 patents

Key switch and keyboard

Key switch and keyboard

Key switch and keyboard

Key switch with sliding mechanism and keyboard

Key switch for keyboard

Key switch, keyboard and portable information processing unit with...

Detecting apparatus for detecting input operation in a switching ma...

Sheet switch

Push button switch using dome spring and switch element thereof

Push-button switch and a keyboard comprising the same

Patents Applicationslast 30 patents

Key switch and keyboard

Key switch and keyboard

Key switch and keyboard