Fujitsu Corporation

Shiro Naoi

Hideo Kimura

Takatoshi Hirota

Satoshi Yokoyama

Mitsuharu Sato

Kazuo Imaoka

Takaaki Onoe

Toshiaki Sukeda

Harumi Maegawa

In a flat display device having a pair of substrates for defining a gas discharge space in which a gas used to generate discharge luminance is sealed, means for absorbing or reflecting near infrared rays is included.

Flat display device

A magnetic bubble memory device of a cassette type including at least one magnetic bubble memory chip, a package for accommodating the chip and upper and lower cases. In the magnetic bubble memory device, two magnetic shield plates are fixed to the inner surfaces of the upper and lower cases, respectively.

Magnetic bubble memory cassette

A cassette type magnetic bubble memory device is dismountably attached to a main apparatus, having a bubble driving circuit, a bubble writing circuit and a bubble reading circuit, and which comprises a case and, contained therein, a magnetic bubble memory element including at least a bubble chip, a coil for producing a revolving magnetic field and a magnet for producing a bias magnetic field. A writing-inhibiting member is mounted on the surface of the case to hold the state of inhibition of the writing operation in the magnetic bubble memory element. This writing-inhibiting member is arranged so that the state of inhibition of the writing operation and the state of allowance of the writing operation can be switched by a manual operation. A lock mechanism for preventing separation of the cassette while a revolving magnetic field is produced and a converse insertion-inhibiting mechanism for inhibiting converse insertion of the cassette when the cassette is being attached to the main apparatus are also provided.

Magnetic bubble memory device cassette

Growing community of inventors

Kawasaki, Japan

Shiro Naoi