Hitoshi Maekawa

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Electronic money storing apparatus and IC card control method
- Patent number 6,321,980
- Issue date Nov 27, 2001
- Hitachi, Ltd.
- Kazuyuki Yazumi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic money coffer
- Patent number 6,109,523
- Issue date Aug 29, 2000
- Hitachi, Ltd.
- Hitoshi Maekawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Electronic money storing apparatus and IC card control method
- Patent number 6,032,858
- Issue date Mar 7, 2000
- Hitachi, Ltd.
- Kazuyuki Yazumi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Cordless keyboard
- Patent number 5,081,628
- Issue date Jan 14, 1992
- Hitachi, Ltd.
- Hitoshi Maekawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for converting an image signal
- Patent number 4,814,873
- Issue date Mar 21, 1989
- Hitachi, Ltd.
- Hitoshi Maekawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transistor driving circuit and circuit controlling method
- Patent number 4,751,403
- Issue date Jun 14, 1988
- Hitachi, Ltd.
- Hitoshi Maekawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Pincushion distortion correction device
- Patent number 4,737,692
- Issue date Apr 12, 1988
- Hitachi, Ltd.
- Nobutaka Okuyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Horizontal deflection output circuit
- Patent number 4,707,640
- Issue date Nov 17, 1987
- Hitachi, Ltd.
- Makoto Onozawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Drive circuit for driving a transistor
- Patent number 4,612,451
- Issue date Sep 16, 1986
- Hitachi, Ltd.
- Hitoshi Maekawa
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Cascode amplifier with an improved biasing arrangement
- Patent number 4,587,495
- Issue date May 6, 1986
- Hitachi, Ltd.
- Michitaka Osawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Amplitude adjusting equipment in a signal translation line
- Patent number 4,544,896
- Issue date Oct 1, 1985
- Hitachi, Ltd.
- Michitaka Osawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Gamma correction circuit
- Patent number 4,480,268
- Issue date Oct 30, 1984
- Hitachi, Ltd.
- Michitaka Osawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Horizontal deflection circuit
- Patent number 4,442,384
- Issue date Apr 10, 1984
- Hitachi, Ltd.
- Hitoshi Maekawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Color picture reproducing device
- Patent number 4,285,008
- Issue date Aug 18, 1981
- Hitachi, Ltd.
- Michitaka Osawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Unmanned contract processing system
- Publication number 20020186671
- Publication date Dec 12, 2002
- Hitachi, Ltd.
- Kunihiro Nomura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Hitoshi Maekawa

Person

Patents Grantslast 30 patents

Electronic money storing apparatus and IC card control method

Electronic money coffer

Electronic money storing apparatus and IC card control method

Cordless keyboard

Method and apparatus for converting an image signal

Transistor driving circuit and circuit controlling method

Pincushion distortion correction device

Horizontal deflection output circuit

Drive circuit for driving a transistor

Cascode amplifier with an improved biasing arrangement

Amplitude adjusting equipment in a signal translation line

Gamma correction circuit

Horizontal deflection circuit

Color picture reproducing device

Patents Applicationslast 30 patents

Unmanned contract processing system