Masayoshi Ezawa

Follow

Person

Mobara, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Infrared microspectrometer
- Patent number 4,922,104
- Issue date May 1, 1990
- 501 Hitachi, Ltd.
- Kinya Eguchi
- G02 - OPTICS
Information Patent Grant
System for measuring foreign materials in liquid
- Patent number 4,890,481
- Issue date Jan 2, 1990
- Hitachi, Ltd.
- Masayoshi Ezawa
- G01 - MEASURING TESTING
Information Patent Grant
System for measuring foreign materials in liquid
- Patent number 4,779,451
- Issue date Oct 25, 1988
- Hitachi, Ltd.
- Masayoshi Ezawa
- G01 - MEASURING TESTING
Information Patent Grant
Technique for preventing reflections in a cathode ray tube
- Patent number 4,723,091
- Issue date Feb 2, 1988
- Hitachi, Ltd.
- Hiromitsu Kawamura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Projection tube whose coolant contains an ethylene oligomer
- Patent number 4,717,853
- Issue date Jan 5, 1988
- Hitachi, Ltd.
- Masayoshi Ezawa
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Photovoltaic-storage battery device
- Patent number 4,481,265
- Issue date Nov 6, 1984
- Hitachi, Ltd.
- Masayoshi Ezawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER