Katsuhisa Hirokawa

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Yokosuka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Virtual shop computer network system which displays member shops an...
- Patent number 6,028,940
- Issue date Feb 22, 2000
- Kabushiki Kaisha Toshiba
- Youko Tanaka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Card system for collectively loading right of use in predetermined...
- Patent number 6,012,637
- Issue date Jan 11, 2000
- Kabushiki Kaisha Toshiba
- Katsuhisa Hirokawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Portable storage medium processing system
- Patent number 4,855,578
- Issue date Aug 8, 1989
- Kabushiki Kaisha Toshiba
- Katsuhisa Hirokawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Programmable portable electronic device
- Patent number 4,827,512
- Issue date May 2, 1989
- Kabushiki Kaisha Toshiba
- Katsuhisa Hirokawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Portable medium
- Patent number 4,766,294
- Issue date Aug 23, 1988
- Kabushiki Kaisha Toshiba
- Seietsu Nara
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Memory card
- Patent number 4,672,182
- Issue date Jun 9, 1987
- Kabushiki Kaisha Toshiba
- Katsuhisa Hirokawa
- G06 - COMPUTING CALCULATING COUNTING