Masamichi Tanabe

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Active mixer circuit and a receiver circuit or a millimeter-wave co...
- Patent number 8,121,579
- Issue date Feb 21, 2012
- Hitachi, Ltd.
- Nobuhiro Shiramizu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Direct-conversion transmitting circuit and integrated transmitting/...
- Patent number 7,116,950
- Issue date Oct 3, 2006
- Renesas Technology Corp.
- Satoshi Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Heterojunction bipolar transistor
- Patent number 6,974,977
- Issue date Dec 13, 2005
- Hitachi, Ltd.
- Katsuyoshi Washio
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heterojunction bipolar transistor
- Patent number 6,600,178
- Issue date Jul 29, 2003
- Hitachi, Ltd.
- Katsuyoshi Washio
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bipolar transistor and manufacturing method thereof
- Patent number 6,521,974
- Issue date Feb 18, 2003
- Hitachi, Ltd.
- Katsuya Oda
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Bipolar transistor and manufacting method thereof
- Patent number 6,482,710
- Issue date Nov 19, 2002
- Hitachi, Ltd.
- Katsuya Oda
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ACTIVE MIXER CIRCUIT AND A RECEIVER CIRCUIT OR A MILLIMETER-WAVE CO...
- Publication number 20090221259
- Publication date Sep 3, 2009
- Hitachi, Ltd.
- Nobuhiro SHIRAMIZU
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Direct-conversion transmitting circuit and integrated transmitting/...
- Publication number 20070021076
- Publication date Jan 25, 2007
- Satoshi Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Semiconductor device
- Publication number 20030205722
- Publication date Nov 6, 2003
- Katsuyoshi Washio
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Direct-conversion transmitting circuit and integrated transmitting/...
- Publication number 20030092416
- Publication date May 15, 2003
- Satoshi Tanaka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Bipolar transistor and manufacturing method thereof
- Publication number 20010017399
- Publication date Aug 30, 2001
- Katsuya Oda
- H01 - BASIC ELECTRIC ELEMENTS