Yasushi Hatta

Follow

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical receiver
- Patent number 6,658,217
- Issue date Dec 2, 2003
- Hitachi, Ltd.
- Kenichi Ohhata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical receiver
- Patent number 6,304,357
- Issue date Oct 16, 2001
- Hitachi, Ltd.
- Kenichi Ohhata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor integrated circuit device
- Patent number 5,376,898
- Issue date Dec 27, 1994
- Hitachi, Ltd.
- Hiroyuki Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Current mirror circuit employing depletion mode FETs
- Patent number 5,166,553
- Issue date Nov 24, 1992
- Hitachi, Ltd.
- Nobuo Kotera
- G05 - CONTROLLING REGULATING
Information Patent Grant
MESFET circuit with threshold-compensated source-follower output
- Patent number 4,968,904
- Issue date Nov 6, 1990
- Hitachi, Ltd.
- Kiichi Yamashita
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Semiconductor integrated circuit device having semi-insulator subst...
- Patent number 4,803,527
- Issue date Feb 7, 1989
- Hitachi, Ltd.
- Yasushi Hatta
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Optical receiver
- Publication number 20020005974
- Publication date Jan 17, 2002
- Hitachi, Ltd.
- Kenichi Ohhata
- H04 - ELECTRIC COMMUNICATION TECHNIQUE