Personal information display system for serving large capacities of general information to user-designated stations at user-designated times

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United States of America Patent

PATENT NO 5721942
SERIAL NO

07791140

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Abstract

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A personal information display system is provided with a portable information display device for reading information to be used from a storage medium, a communication network for transmission of information, input/output apparatus for input/output of information, an input/output control apparatus connected between the communication network and the input/output apparatus, an information control apparatus having a hierarchical memory connected to the communication network, and an information output apparatus connected to the information control apparatus to transfer information to the storage medium of the portable information display device.

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Patent Owner(s)

Patent OwnerAddress
HITACHI MAXELL LTD A CORP OF JAPANIBARAKI-SHI 1-88 USHITORA 1-CHOME OSAKA 567
HITACHI LTD A CORP OF JAPAN6 KANDA SURUGADAI 4-CHOME CHIYODA-KU TOKYO
HITACHI INSTRUMENT ENGINEERING CO LTD A CORP OF JAPAN882 ICHIGE KATSUTA-SHI IBARAKI-KEN
HITACHI COMPUTER PERIPHERALS CO LTD A CORP OF JAPAN2880 KOZU ODAWARA-SHI KANAGAWA-KEN

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hoashi, Kouichi Hadano, JP 3 26
Koyanagi, Hiroaki Hiratsuka, JP 15 391
Nishiyama, Nobumasa Hachioji, JP 50 543
Shinomoto, Sayaka Kyoto, JP 8 77
Takai, Kouji Odawara, JP 2 19
Tamochi, Ryuichiroh Ibaraki-ken, JP 1 9

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