Hiroyuki Funahashi

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Ukyo-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Current-to-voltage conversion IC and a photoelectric conversion IC
- Patent number 6,114,686
- Issue date Sep 5, 2000
- Rohm Co., Ltd.
- Hiroyuki Funahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Equalizer and audio device using the same
- Patent number 6,088,460
- Issue date Jul 11, 2000
- Rohm Co., Ltd.
- Hiroyuki Funahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Equalizer and audio device using the same
- Patent number 5,754,668
- Issue date May 19, 1998
- Rohm Co., Ltd.
- Hiroyuki Funahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Low-voltage driven, audio signal amplifying apparatus and a portabl...
- Patent number 5,610,555
- Issue date Mar 11, 1997
- Rohm Co., Ltd.
- Hiroyuki Funahashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Isolation amplifier circuit
- Patent number 5,191,298
- Issue date Mar 2, 1993
- Rohm Co., Ltd.
- Hiroyuki Funahashi
- H03 - BASIC ELECTRONIC CIRCUITRY