Keiichi Numata

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Switch circuit for high frequency signals wherein distortion of the...
- Patent number 7,915,946
- Issue date Mar 29, 2011
- NEC Corporation
- Yuji Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High frequency switch circuit
- Patent number 7,345,521
- Issue date Mar 18, 2008
- NEC Corporation
- Yuji Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Amplifying circuit
- Patent number 7,298,215
- Issue date Nov 20, 2007
- NEC Corporation
- Hitoshi Yano
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
PLL circuit
- Patent number 7,180,375
- Issue date Feb 20, 2007
- NEC Corporation
- Tadashi Maeda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High frequency switch circuit
- Patent number 6,987,414
- Issue date Jan 17, 2006
- NEC Corporation
- Keiichi Numata
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Field effect transistor logic circuit with reduced power consumption
- Patent number 6,201,416
- Issue date Mar 13, 2001
- NEC Corporation
- Keiichi Numata
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switching speed fluctuation detecting apparatus for logic circuit a...
- Patent number 5,619,146
- Issue date Apr 8, 1997
- NEC Corporation
- Masahiro Fujii
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
HIGH-FREQUENCY SWITCH CIRCUIT
- Publication number 20090206910
- Publication date Aug 20, 2009
- NEC Corporation
- Yuji Takahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Amplifying circuit
- Publication number 20060033573
- Publication date Feb 16, 2006
- Hitoshi Yano
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Pll circuit
- Publication number 20050253658
- Publication date Nov 17, 2005
- NEC Corporation
- Tadashi Maeda
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
High frequency switch circuit
- Publication number 20050179506
- Publication date Aug 18, 2005
- Yuji Takahashi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
High frequency switch circuit
- Publication number 20040085118
- Publication date May 6, 2004
- Keiichi Numata
- H03 - BASIC ELECTRONIC CIRCUITRY