Kazumasa Kohama

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Signal processing circuit, signal processing module, and communicat...
- Patent number 10,784,557
- Issue date Sep 22, 2020
- SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Kenji Noguchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Signal processing circuit, signal processing module, and communicat...
- Patent number 10,276,911
- Issue date Apr 30, 2019
- SONY SEMICONDUCTOR SOLUTIONS CORPORATION
- Kenji Noguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High-frequency device including high-frequency switching circuit
- Patent number 9,824,986
- Issue date Nov 21, 2017
- Sony Corporation
- Kazumasa Kohama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-frequency device including high-frequency switching circuit
- Patent number 9,406,696
- Issue date Aug 2, 2016
- Sony Corporation
- Kazumasa Kohama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High-frequency device including high-frequency switching circuit
- Patent number 9,105,564
- Issue date Aug 11, 2015
- Sony Corporation
- Kazumasa Kohama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High frequency integrated circuit
- Patent number 8,797,697
- Issue date Aug 5, 2014
- Sony Corporation
- Kazumasa Kohama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
High-frequency device including high-frequency switching circuit
- Patent number 8,598,629
- Issue date Dec 3, 2013
- Sony Corporation
- Kazumasa Kohama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Antenna switching circuit and communication system using the same
- Patent number 6,704,550
- Issue date Mar 9, 2004
- Sony Corporation
- Kazumasa Kohama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
High-frequency Circuit
- Patent number 6,563,366
- Issue date May 13, 2003
- Sony Corporation
- Kazumasa Kohama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switching circuit at high frequency with low insertion loss
- Patent number 5,969,560
- Issue date Oct 19, 1999
- Sony Corporation
- Kazumasa Kohama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switching circuit
- Patent number 5,917,362
- Issue date Jun 29, 1999
- Sony Corporation
- Kazumasa Kohama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Switching circuit at high frequency with low insertion loss
- Patent number 5,825,227
- Issue date Oct 20, 1998
- Sony Corporation
- Kazumasa Kohama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Switch semiconductor integrated circuit and communication terminal...
- Patent number 5,812,939
- Issue date Sep 22, 1998
- Sony Corporation
- Kazumasa Kohama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Semiconductor integrated circuit device
- Patent number 5,731,607
- Issue date Mar 24, 1998
- Sony Corporation
- Kazumasa Kohama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Low insertion loss switch
- Patent number 5,717,356
- Issue date Feb 10, 1998
- Sony Corporation
- Kazumasa Kohama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio receiver-transmitter apparatus and signal changeover switch
- Patent number 5,548,239
- Issue date Aug 20, 1996
- Sony Corporation
- Kazumasa Kohama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Attenuator circuit apparatus
- Patent number 5,448,207
- Issue date Sep 5, 1995
- Sony Corporation
- Kazumasa Kohama
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
SIGNAL PROCESSING CIRCUIT, SIGNAL PROCESSING MODULE, AND COMMUNICAT...
- Publication number 20190237842
- Publication date Aug 1, 2019
- Sony Semiconductor Solutions Corporation
- Kenji Noguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SIGNAL PROCESSING CIRCUIT, SIGNAL PROCESSING MODULE, AND COMMUNICAT...
- Publication number 20180048046
- Publication date Feb 15, 2018
- Sony Semiconductor Solutions Corporation
- Kenji Noguchi
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH-FREQUENCY DEVICE INCLUDING HIGH-FREQUENCY SWITCHING CIRCUIT
- Publication number 20160307857
- Publication date Oct 20, 2016
- SONY CORPORATION
- Kazumasa Kohama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH-FREQUENCY DEVICE INCLUDING HIGH-FREQUENCY SWITCHING CIRCUIT
- Publication number 20150325590
- Publication date Nov 12, 2015
- SONY CORPORATION
- Kazumasa Kohama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH-FREQUENCY DEVICE INCLUDING HIGH-FREQUENCY SWITCHING CIRCUIT
- Publication number 20140035065
- Publication date Feb 6, 2014
- SONY CORPORATION
- Kazumasa Kohama
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
High Frequency Integrated Circuit
- Publication number 20080043388
- Publication date Feb 21, 2008
- SONY CORPORATION
- Kazumasa Kohama
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
HIGH-FREQUENCY DEVICE INCLUDING HIGH-FREQUENCY SWITCHING CIRCUIT
- Publication number 20070018204
- Publication date Jan 25, 2007
- Kazumasa Kohama
- H01 - BASIC ELECTRIC ELEMENTS

Kazumasa Kohama

Person

Patents Grantslast 30 patents

Signal processing circuit, signal processing module, and communicat...

Signal processing circuit, signal processing module, and communicat...

High-frequency device including high-frequency switching circuit

High-frequency device including high-frequency switching circuit

High-frequency device including high-frequency switching circuit

High frequency integrated circuit

High-frequency device including high-frequency switching circuit

Antenna switching circuit and communication system using the same

High-frequency Circuit

Switching circuit at high frequency with low insertion loss

Switching circuit

Switching circuit at high frequency with low insertion loss

Switch semiconductor integrated circuit and communication terminal...

Semiconductor integrated circuit device

Low insertion loss switch

Radio receiver-transmitter apparatus and signal changeover switch

Attenuator circuit apparatus

Patents Applicationslast 30 patents

SIGNAL PROCESSING CIRCUIT, SIGNAL PROCESSING MODULE, AND COMMUNICAT...

SIGNAL PROCESSING CIRCUIT, SIGNAL PROCESSING MODULE, AND COMMUNICAT...

HIGH-FREQUENCY DEVICE INCLUDING HIGH-FREQUENCY SWITCHING CIRCUIT

HIGH-FREQUENCY DEVICE INCLUDING HIGH-FREQUENCY SWITCHING CIRCUIT

HIGH-FREQUENCY DEVICE INCLUDING HIGH-FREQUENCY SWITCHING CIRCUIT

High Frequency Integrated Circuit

HIGH-FREQUENCY DEVICE INCLUDING HIGH-FREQUENCY SWITCHING CIRCUIT