Inventor

ITOH SHIGEYUKI

JP73 patents

⚠️ This page may combine multiple inventors who share the name “ITOH SHIGEYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

ITOH SHIGEYUKI

HITACHI LTD

Electronic purse application system and method thereof

IC card reader/writer and method of operation thereof

IC card automated transaction terminal and IC card used therein

Electronic wallet and method for operating the same

Apparatus for removably mounting an electronic camera to a computer system

Electronic wallet system

Imaging and recording apparatus

Electronic money transaction system with a radio transmitter and receiver using a portable telephone

Multichip IC card and IC card system using it

Portable electronic still camera recording optical images of subjects in a memory which facilitates memory access from an external request

IC card processing device, automatic vending device, and selling method

Audio signal transmission system having noise reduction means

Electronic purse loan system

IC card automated transaction terminal and IC used therein

Electronic money transaction system with a radio transmitter and receiver using a portable telephone

System and method for charging fee for video information

Electronic purse

Information reception and recording circuit

Method and apparatus for processing IC card found

Pocket-size information transfer apparatus having dual IC card insertion slots and IC card using the same

IC card information processing system, and apparatus and cards for the same

IC card processing system and processing method

Machine data acquistion system and method

Imaging and recording apparatus

Video camera

Electronic-money rewarding system for lost and found IC card

Electronic-money rewarding system for lost and found IC card

Transaction-oriented electronic accommodation system

Transaction-oriented electronic accommodation system

Electronic-money rewarding system for lost and found IC card

Apparatus for recording and reproducing digital using dynamic range compression

Electronic purse application system and method thereof

Imaging and recording apparatus

Imaging and recording apparatus

Imaging and recording apparatus

Apparatus for recording and reproducing a video signal and for recording and reproducing a PCM audio signal on forward and reverse tape travelling directions

Program writable integrated circuit card and method therefore

IC card reader/writer and method of operation thereof

Information transmission/reception system for transmitting information to requesters, where it is recorded, in response to a plurality of requests

Portable electronic still camera recording optical images of subjects in a memory which facilitates memory access from an external request

Information transmission/reception system for transmitting information to requesters, where it is recorded, in response to a plurality of requests

Apparatus for transmitting lightwave

IC card terminal device and installation of application program into IC card terminal device

Video camera/VTR and camera station with opto-electronic link between camera/VTR and camera station

Video signal recording and reproducing apparatus with signal processing circuit for improvement of picture quality

Dual record/read head video recording and playback apparatus with fade-in function

Magnetic tape recording/reproducing apparatus having automatic mode control

Chrominance signal reproducing apparatus for video tape recorder

Imaging and recording apparatus

(unassigned)

AFC circuit, carrier recovery circuit and receiver device capable of regenerating a carrier reliably even at the time of low C/N ratio