Tsuyoshi Narusawa

Person

Miyagi-ken, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Key-switch device corresponding to miniaturized notebook-size perso...
- Patent number 6,909,062
- Issue date Jun 21, 2005
- Alps Electric Co., Ltd.
- Tsuyoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key-switch device corresponding to miniaturized notebook-size perso...
- Patent number 6,777,634
- Issue date Aug 17, 2004
- Alps Electric Co., Ltd.
- Tsuyoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyswitch having a keytop that is upwardly and downwardly movable a...
- Patent number 6,689,977
- Issue date Feb 10, 2004
- Alps Electric Co., Ltd.
- Takayuki Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard device and method for manufacturing the same
- Patent number 6,624,369
- Issue date Sep 23, 2003
- Alps Electric Co., Ltd.
- Takayuki Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Key switch disposed on keyboard input device and method of producin...
- Patent number 6,597,344
- Issue date Jul 22, 2003
- Alps Electric Co., Ltd.
- Tsuyoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard input device with pointing device for controlling cursor p...
- Patent number 6,556,186
- Issue date Apr 29, 2003
- Alps Electric Co., Ltd.
- Tsuyoshi Narusawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Key switch with easily attachable key top
- Patent number 6,483,050
- Issue date Nov 19, 2002
- Alps Electric Co., Ltd.
- Tsuyoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard apparatus
- Patent number 6,312,176
- Issue date Nov 6, 2001
- Alps Electric Co., Ltd.
- Masaaki Kageyama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Thin keyboard apparatus
- Patent number 6,225,586
- Issue date May 1, 2001
- Alps Electric Co., Ltd.
- Kazutoshi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard device having plurality of keyswitches
- Patent number 6,152,627
- Issue date Nov 28, 2000
- Alps Electric Co., Ltd.
- Kazutoshi Watanabe
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Thin keyboard
- Patent number 6,087,604
- Issue date Jul 11, 2000
- Alps Electric Co., Ltd.
- Seiichi Suga
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard device
- Patent number 6,031,189
- Issue date Feb 29, 2000
- Alps Electric Co., Ltd.
- Kazutoshi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard device
- Patent number 5,967,298
- Issue date Oct 19, 1999
- Alsp Electric Co., Ltd.
- Kazutoshi Watanabe
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coordinate inputting device for a computer keyboard
- Patent number 5,754,167
- Issue date May 19, 1998
- Alps Electric Co., Ltd.
- Tsuyoshi Narusawa
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
INPUT PROCESSING APPARATUS
- Publication number 20130009866
- Publication date Jan 10, 2013
- Shinji Hirano
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Key-switch device corresponding to miniaturized notebook-size perso...
- Publication number 20040195081
- Publication date Oct 7, 2004
- Tsuyoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Keyboard input device with pointing device for controlling cursor p...
- Publication number 20030016209
- Publication date Jan 23, 2003
- Tsuyoshi Narusawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Keyswitch having a keytop that is upwardly and downwardly movable a...
- Publication number 20020175063
- Publication date Nov 28, 2002
- Alps Electric Co., Ltd.
- Takayuki Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Key-switch device corresponding to miniaturized notebook-size perso...
- Publication number 20020148712
- Publication date Oct 17, 2002
- Alps Electric Co., Ltd.
- Tsuyoshi Narusawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Keyboard device and method for manufacturing the same
- Publication number 20020014398
- Publication date Feb 7, 2002
- Alps Electric Co., Ltd.
- Takayuki Ito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
KEYBOARD APPARATUS
- Publication number 20010014240
- Publication date Aug 16, 2001
- MASAAKI KAGEYAMA
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
THIN KEYBOARD
- Publication number 20010001628
- Publication date May 24, 2001
- KAZUTOSHI WATANABE
- G06 - COMPUTING CALCULATING COUNTING

Tsuyoshi Narusawa

Person

Patents Grantslast 30 patents

Key-switch device corresponding to miniaturized notebook-size perso...

Key-switch device corresponding to miniaturized notebook-size perso...

Keyswitch having a keytop that is upwardly and downwardly movable a...

Keyboard device and method for manufacturing the same

Key switch disposed on keyboard input device and method of producin...

Keyboard input device with pointing device for controlling cursor p...

Key switch with easily attachable key top

Keyboard apparatus

Thin keyboard apparatus

Keyboard device having plurality of keyswitches

Thin keyboard

Keyboard device

Keyboard device

Coordinate inputting device for a computer keyboard

Patents Applicationslast 30 patents

INPUT PROCESSING APPARATUS

Key-switch device corresponding to miniaturized notebook-size perso...

Keyboard input device with pointing device for controlling cursor p...

Keyswitch having a keytop that is upwardly and downwardly movable a...

Key-switch device corresponding to miniaturized notebook-size perso...

Keyboard device and method for manufacturing the same

KEYBOARD APPARATUS

THIN KEYBOARD