Ryozi Higashi

Follow

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Tone control circuit utilizing variable gain amplifier
- Patent number 4,328,465
- Issue date May 4, 1982
- Pioneer Electronic Corporation
- Saburo Takaoka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tone control arrangement for use in sound reproducing instruments
- Patent number 4,289,928
- Issue date Sep 15, 1981
- Pioneer Electronic Corporation
- Saburo Takaoka
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tone control device
- Patent number 4,284,965
- Issue date Aug 18, 1981
- Pioneer Electronic Corporation
- Ryozi Higashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Tone control device
- Patent number 4,271,398
- Issue date Jun 2, 1981
- Pioneer Electronic Corporation
- Ryozi Higashi
- H03 - BASIC ELECTRONIC CIRCUITRY