Norimasa KITAGAWA

Person

Osaka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Audio amplifier and audio power amplifier
- Patent number 10,243,516
- Issue date Mar 26, 2019
- Onkyo Corporation
- Tsuyoshi Kawaguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Signal processing device, signal processing method, and speaker device
- Patent number 10,149,053
- Issue date Dec 4, 2018
- Onkyo Corporation
- Hiroki Kurosaki
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Music reproducing device with active control ground mode
- Patent number 9,762,197
- Issue date Sep 12, 2017
- ONKYO Corporation
- Kei Asao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Music reproducing device with first and second D/A converters for c...
- Patent number 9,712,919
- Issue date Jul 18, 2017
- ONKYO Corporation
- Kei Asao
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifying circuit and current-voltage conversion circuit
- Patent number 8,552,802
- Issue date Oct 8, 2013
- ONKYO Corporation
- Tsuyoshi Kawaguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplifying circuit
- Patent number 8,310,307
- Issue date Nov 13, 2012
- ONKYO Corporation
- Tsuyoshi Kawaguchi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Vibration-damping structure for audio apparatus
- Patent number 7,773,373
- Issue date Aug 10, 2010
- ONKYO Corporation
- Tsuyoshi Morohashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
DIFFUSER
- Publication number 20200236462
- Publication date Jul 23, 2020
- Onkyo Corporation
- Norimasa KITAGAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND SPEAKER DEVICE
- Publication number 20190132677
- Publication date May 2, 2019
- Onkyo Corporation
- Hiroki KUROSAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AUDIO AMPLIFIER AND AUDIO POWER AMPLIFIER
- Publication number 20180241348
- Publication date Aug 23, 2018
- Onkyo Corporation
- Tsuyoshi KAWAGUCHI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND SPEAKER DEVICE
- Publication number 20180041836
- Publication date Feb 8, 2018
- Onkyo Corporation
- Hiroki KUROSAKI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MUSIC REPRODUCING DEVICE
- Publication number 20170064455
- Publication date Mar 2, 2017
- Onkyo Corporation
- Kei ASAO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
MUSIC REPRODUCING DEVICE
- Publication number 20170063320
- Publication date Mar 2, 2017
- Onkyo Corporation
- Kei ASAO
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
AMPLIFYING CIRCUIT
- Publication number 20120049963
- Publication date Mar 1, 2012
- Onkyo Corporation
- Tsuyoshi KAWAGUCHI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
AMPLIFYING CIRCUIT AND CURRENT-VOLTAGE CONVERSION CIRCUIT
- Publication number 20120049895
- Publication date Mar 1, 2012
- Onkyo Corporation
- Tsuyoshi KAWAGUCHI
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
VIBRATION-DAMPING STRUCTURE FOR AUDIO APPARATUS
- Publication number 20080149805
- Publication date Jun 26, 2008
- Tsuyoshi Morohashi
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Norimasa KITAGAWA

Person

Patents Grantslast 30 patents

Audio amplifier and audio power amplifier

Signal processing device, signal processing method, and speaker device

Music reproducing device with active control ground mode

Music reproducing device with first and second D/A converters for c...

Amplifying circuit and current-voltage conversion circuit

Amplifying circuit

Vibration-damping structure for audio apparatus

Patents Applicationslast 30 patents

DIFFUSER

SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND SPEAKER DEVICE

AUDIO AMPLIFIER AND AUDIO POWER AMPLIFIER

SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, AND SPEAKER DEVICE

MUSIC REPRODUCING DEVICE

MUSIC REPRODUCING DEVICE

AMPLIFYING CIRCUIT

AMPLIFYING CIRCUIT AND CURRENT-VOLTAGE CONVERSION CIRCUIT

VIBRATION-DAMPING STRUCTURE FOR AUDIO APPARATUS