Keiichi Sakamaki

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Combiner-divider
- Patent number 11,128,024
- Issue date Sep 21, 2021
- Hitachi Kokusai Electric Inc.
- Yusaburo Goto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Wilkinson combiner and wilkinson divider
- Patent number 10,381,706
- Issue date Aug 13, 2019
- Hitachi Kokusai Electric Inc.
- Yusaburo Goto
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Feedforward distortion compensation amplifier
- Patent number 8,054,127
- Issue date Nov 8, 2011
- Hitachi Kokusai Electric Inc.
- Keiichi Sakamaki
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
COMBINER-DIVIDER
- Publication number 20190379100
- Publication date Dec 12, 2019
- Hitachi Kokusai Electric Inc.
- Yusaburo GOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
WILKINSON COMBINER AND WILKINSON DIVIDER
- Publication number 20180053984
- Publication date Feb 22, 2018
- Hitachi Kokusai Electric Inc.
- Yusaburo GOTO
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Feedforward distortion compensation amplifier
- Publication number 20100182081
- Publication date Jul 22, 2010
- Hitachi Kokusai Electric Inc.
- Keiichi Sakamaki
- H03 - BASIC ELECTRONIC CIRCUITRY