Masana Ugaji

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Battery unit and battery energy billing method
- Patent number 5,525,890
- Issue date Jun 11, 1996
- Sony Corporation
- Satoshi Iwatsu
- G01 - MEASURING TESTING
Information Patent Grant
Diaphragm
- Patent number 4,726,443
- Issue date Feb 23, 1988
- Sony Corporation and Fujikura Ltd.
- Masana Ugaji
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Silicon carbide-carbon composite molded product and process for man...
- Patent number 4,696,827
- Issue date Sep 29, 1987
- Sony Corporation
- Kiyohito Okamura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Silicon carbide-carbon composite molded product and process for man...
- Patent number 4,618,591
- Issue date Oct 21, 1986
- Sony Corporation
- Kiyohito Okamura
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Electro-acoustic transducer
- Patent number 4,281,223
- Issue date Jul 28, 1981
- Sony Corporation
- Masana Ugaji
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Membrane type electro-acoustic transducer
- Patent number 4,276,452
- Issue date Jun 30, 1981
- Sony Corporation
- Hideo Suyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Diaphragm for a loudspeaker
- Patent number 4,275,278
- Issue date Jun 23, 1981
- Sony Corporation
- Sadaaki Sakurai
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Masana Ugaji

Person

Patents Grantslast 30 patents

Battery unit and battery energy billing method

Diaphragm

Silicon carbide-carbon composite molded product and process for man...

Silicon carbide-carbon composite molded product and process for man...

Electro-acoustic transducer

Membrane type electro-acoustic transducer

Diaphragm for a loudspeaker