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Hiroshi Tanigawa
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Tsurugashima, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Variable output-type constant current source circuit
Patent number
7,057,448
Issue date
Jun 6, 2006
Toko, Inc.
Hiroshi Tanigawa
G05 - CONTROLLING REGULATING
Information
Patent Grant
Constant voltage power supply
Patent number
6,927,559
Issue date
Aug 9, 2005
Toko, Inc.
Hiroshi Tanigawa
G05 - CONTROLLING REGULATING
Information
Patent Grant
Integrator including an offset eliminating circuit and capable of o...
Patent number
5,467,045
Issue date
Nov 14, 1995
Toko, Inc.
Hiroshi Tanigawa
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Polar leapfrog filter
Patent number
5,298,813
Issue date
Mar 29, 1994
Toko, Inc.
Hiroshi Tanigawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Polar leapfrog filter
Patent number
5,296,763
Issue date
Mar 22, 1994
Toko, Inc.
Hiroshi Tanigawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Polar leapfrog filter
Patent number
5,293,086
Issue date
Mar 8, 1994
Toko, Inc.
Hiroshi Tanigawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
All-pass filter
Patent number
5,258,716
Issue date
Nov 2, 1993
Toko, Inc.
Hiroshi Kondo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Variable time-constant type differentiator
Patent number
5,216,375
Issue date
Jun 1, 1993
Toko, Inc.
Hiroshi Tanigawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Polar leapfrog filter
Patent number
5,182,522
Issue date
Jan 26, 1993
Toko, Inc.
Hiroshi Tanigawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Active filter circuit
Patent number
5,177,382
Issue date
Jan 5, 1993
Toko, Inc.
Hiroshi Kondo
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Gain control circuit of current mirror circuit type
Patent number
4,814,724
Issue date
Mar 21, 1989
Toko Kabushiki Kaisha
Hiroshi Tanigawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Low voltage phase comparator
Patent number
4,808,856
Issue date
Feb 28, 1989
Toko, Inc.
Hiroshi Tanigawa
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Switching circuit device using current mirror circuits
Patent number
4,767,979
Issue date
Aug 30, 1988
Toko, Inc.
Hiroshi Tanigawa
G05 - CONTROLLING REGULATING
Patents Applications
last 30 patents
Information
Patent Application
Variable output-type constant current source circuit
Publication number
20040246046
Publication date
Dec 9, 2004
TOKO, INC.
Hiroshi Tanigawa
G05 - CONTROLLING REGULATING
Information
Patent Application
Constant voltage power supply
Publication number
20040104712
Publication date
Jun 3, 2004
TOKO, INC.
Hiroshi Tanigawa
G05 - CONTROLLING REGULATING