Hitachi Maxell, Limited

Other

Kenichi Kitta

Masahiro Mita

Yasunori Kanazawa

Kunihiro Okada

Masahiro Masuzawa

Fumio Kimura

Toshiko Takahashi

Atsuki Hirose

Makoto Ochiai

You Takamori

Mitsuo Mimura

Naotake Nakamura

Takehiro Takahashi

Yatani Ishikawa

Yoshiro Otomo

Touru Shinagawa

A permanent magnet generator incorporated in a diskette that can be inserted into a floppy disk drive is disclosed. In the permanent magnet generator, electric power is generated as a rotor is caused to rotate at a revolution twice to ten times as high as that of the drive shaft of a floppy disk drive by transmitting the rotation of the drive shaft to a rotor via a speed increasing mechanism incorporated in a diskette. Since the cogging torque of the generator is reduced, the rotor can be caused to rotate with a small drive torque. This allows the generator to produce a high output.

Diskette incorporating permanent magnet generator

Data processing system using IC card

An information retrieving system in which information arranged by a series of more than one character is inputted and data corresponding to said input information is read out from a disk-shaped recording medium, such that every time the characters of the input information are successively inputted, a head is seeked for a direction of a recording position of the data on the disk-shaped recording medium, corresponding to the input information, and also the head is located at the recording position of the data upon completion of the entry operation of the input information.

Information retrieving system

In an IC card reader and writer there is provided a judging means for judging the type of IC card inserted in the card reader and writer so as to make the card reader and writer compatible with various kinds of IC cards by providing a suitable power supply for accessing information stored in a particular type of memory in the IC card.

Reader and writer for an IC card

A color sensor includes a plurality of light emitting sources of different colors each of which is driven in a time divisional manner to emit the different colors sequentially, a light receiving element for receiving the light from an object illuminated by the respective color lights from the light emitting sources and a circuit arrangement for producing output signals representing the color of the object.

Color sensor

Growing community of inventors

Tokyo, Japan

Kenichi Kitta