Ken Hamada

Follow

Person

Toyonaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Deflection plate for optical pick-up device
- Patent number 5,475,670
- Issue date Dec 12, 1995
- Matsushita Electronics Corporation
- Ken Hamada
- G02 - OPTICS
Information Patent Grant
Buried twin ridge substrate laser
- Patent number 4,745,611
- Issue date May 17, 1988
- Matsushita Electric Industrial Co., Ltd.
- Ken Hamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device with decreased light intensity noise
- Patent number 4,731,792
- Issue date Mar 15, 1988
- Matsushita Electric Industrial Co., Ltd.
- Hirokazu Shimizu
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
A high-output semiconductor laser of dove tail groove type
- Patent number 4,716,571
- Issue date Dec 29, 1987
- Matsushita Electric Industrial Co., Ltd.
- Ken Hamada
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of manufacturing semiconductor device
- Patent number 4,675,074
- Issue date Jun 23, 1987
- Matsushita Electric Industrial Co., Ltd.
- Masaru Wada
- H01 - BASIC ELECTRIC ELEMENTS