Tetsuo Hirota

Person

Kanazawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Matching circuit
- Patent number 8,098,114
- Issue date Jan 17, 2012
- NTT DoCoMo, Inc.
- Atsushi Fukuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Signal switching device
- Patent number 7,774,034
- Issue date Aug 10, 2010
- NTT DoCoMo, Inc.
- Kunihiro Kawai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Signal switching device
- Patent number 7,307,045
- Issue date Dec 11, 2007
- NTT DoCoMo, Inc.
- Kunihiro Kawai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Coplanar waveguide filter and method of forming same
- Patent number 7,245,195
- Issue date Jul 17, 2007
- NTT DoCoMo, Inc.
- Kei Satoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Casing contained filter
- Patent number 7,183,874
- Issue date Feb 27, 2007
- NTT DoCoMo Inc.
- Kei Satoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Linear power amplification method and linear power amplifier
- Patent number 7,170,342
- Issue date Jan 30, 2007
- NTT DoCoMo, Inc.
- Yasunori Suzuki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Power amplifier
- Patent number 7,119,621
- Issue date Oct 10, 2006
- NTT DoCoMo, Inc.
- Ning Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Quadrature hybrid circuit
- Patent number 7,084,717
- Issue date Aug 1, 2006
- NTT DoCoMo, Inc.
- Hiroshi Okazaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Space multiplex radio communication method and radio communication...
- Patent number 7,072,409
- Issue date Jul 4, 2006
- NTT DoCoMo, Inc.
- Yasunori Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High-efficiency linear power amplifier
- Patent number 7,042,283
- Issue date May 9, 2006
- NTT BoCoMo, Inc.
- Yasunori Suzuki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multi-terminal power combining feed-forward amplifier
- Patent number 6,515,544
- Issue date Feb 4, 2003
- NTT DoCoMo, Inc.
- Yasunori Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
SIGNAL SWITCHING DEVICE
- Publication number 20070230450
- Publication date Oct 4, 2007
- NTT DoCoMo, Inc.
- Kunihiro Kawai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Matching circuit
- Publication number 20070018758
- Publication date Jan 25, 2007
- NTT DoCoMo Inc.
- Atsushi Fukuda
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Coplanar waveguide filter and method of forming same
- Publication number 20050206480
- Publication date Sep 22, 2005
- NTT DoCoMo, Inc.
- Kei Satoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Filter
- Publication number 20050184826
- Publication date Aug 25, 2005
- NTT DoCoMo, Inc.
- Kei Satoh
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Quadrature hybrid circuit
- Publication number 20050052259
- Publication date Mar 10, 2005
- NTT DoCoMo, Inc.
- Hiroshi Okazaki
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Power amplifier
- Publication number 20050030104
- Publication date Feb 10, 2005
- NTT DoCoMo, Inc.
- Ning Chen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
High-efficiency linear power amplifier
- Publication number 20040189378
- Publication date Sep 30, 2004
- NTT DoCoMo, Inc.
- Yasunori Suzuki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Linear power amplification method and linear power amplifier
- Publication number 20040116083
- Publication date Jun 17, 2004
- NTT DoCoMo, Inc.
- Yasunori Suzuki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Signal switching device
- Publication number 20040097379
- Publication date May 20, 2004
- NTT DoCoMo, Inc.
- Kunihiro Kawai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Transmitter
- Publication number 20040038696
- Publication date Feb 26, 2004
- NTT DoCoMo, Inc.
- Yasunori Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Space multiplex radio communication method and radio communication...
- Publication number 20020003842
- Publication date Jan 10, 2002
- NTT DoCoMo, Inc
- Yasunori Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Tetsuo Hirota

Person

Patents Grantslast 30 patents

Matching circuit

Signal switching device

Signal switching device

Coplanar waveguide filter and method of forming same

Casing contained filter

Linear power amplification method and linear power amplifier

Power amplifier

Quadrature hybrid circuit

Space multiplex radio communication method and radio communication...

High-efficiency linear power amplifier

Multi-terminal power combining feed-forward amplifier

Patents Applicationslast 30 patents

SIGNAL SWITCHING DEVICE

Matching circuit

Coplanar waveguide filter and method of forming same

Filter

Quadrature hybrid circuit

Power amplifier

High-efficiency linear power amplifier

Linear power amplification method and linear power amplifier

Signal switching device

Transmitter

Space multiplex radio communication method and radio communication...