Seigo Hasunuma

Person

Nitta-gun, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Keytop
- Patent number 7,097,371
- Issue date Aug 29, 2006
- Hosiden Corporation
- Seigo Hasunuma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Keyboard
- Patent number 6,657,139
- Issue date Dec 2, 2003
- Hosiden Corporation
- Seigo Hasunuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard switch having leg dislodgement preventing mechanism
- Patent number 6,504,121
- Issue date Jan 7, 2003
- Hosiden Corporation
- Seigo Hasunuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Keyboard switch
- Patent number 6,068,416
- Issue date May 30, 2000
- Hosiden Corporation
- Kiyomi Kumamoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Membrane type keyboard with improved multiple key arrangement
- Patent number 5,912,443
- Issue date Jun 15, 1999
- Hosiden Corporation
- Seigo Hasunuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pantograph type keyboard switch
- Patent number 5,799,772
- Issue date Sep 1, 1998
- Hosiden Corporation
- Yutaka Sanda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Membrane type keyboard with improved multiple key arrangement
- Patent number 5,763,841
- Issue date Jun 9, 1998
- Hosiden Corporation
- Seigo Hasunuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Pantograph type keyboard switch
- Patent number 5,758,763
- Issue date Jun 2, 1998
- Hosiden Corporation
- Yutaka Sanda
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Keytop
- Publication number 20040165925
- Publication date Aug 26, 2004
- Seigo Hasunuma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Keyboard
- Publication number 20020196164
- Publication date Dec 26, 2002
- Seigo Hasunuma
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Keyboard switch
- Publication number 20010046402
- Publication date Nov 29, 2001
- Hosiden Corporation
- Seigo Hasunuma
- H01 - BASIC ELECTRIC ELEMENTS

Seigo Hasunuma

Person

Patents Grantslast 30 patents

Keytop

Keyboard

Keyboard switch having leg dislodgement preventing mechanism

Keyboard switch

Membrane type keyboard with improved multiple key arrangement

Pantograph type keyboard switch

Membrane type keyboard with improved multiple key arrangement

Pantograph type keyboard switch

Patents Applicationslast 30 patents

Keytop

Keyboard

Keyboard switch