Masaaki Sawai

Follow

Person

Komoro, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Light emitting device with improved electrode structure to minimize...
- Patent number RE34378
- Issue date Sep 14, 1993
- Hitachi, Ltd.
- Masaaki Sawai
- 372 - Coherent light generators
Information Patent Grant
Semiconductor laser chip having a layer structure to reduce the pro...
- Patent number 4,849,982
- Issue date Jul 18, 1989
- Hitachi, Ltd.
- Masaaki Sawai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting device with improved electrode structure to minimize...
- Patent number 4,785,455
- Issue date Nov 15, 1988
- Hitachi, Ltd.
- Masaaki Sawai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser chip having a layer structure to reduce the pro...
- Patent number 4,731,790
- Issue date Mar 15, 1988
- Hitachi, Ltd.
- Masaaki Sawai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting device with improved electrode structure to minimize...
- Patent number 4,692,927
- Issue date Sep 8, 1987
- Hitachi, Ltd.
- Masaaki Sawai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser module having an improved temperature control a...
- Patent number 4,604,753
- Issue date Aug 5, 1986
- Hitachi, Ltd.
- Masaaki Sawai
- H01 - BASIC ELECTRIC ELEMENTS