Fujitsu Corporation

Shigeru Akema

Takumi Kawamura

Shigeo Nonoyama

Yoshiki Nagasaki

Akihiko Yabuki

Tomohisa Mikami

Mamoru Hokari

Ayu Miyakawa

A magneto-optical head including a transparent substrate, a coil formed on a first surface of the transparent substrate, a pair of first electrodes formed on a side surface of the transparent substrate so as to be connected to a first end and a second end of the coil, respectively, and an objective lens unit bonded to a second surface of the transparent substrate. The magneto-optical head further includes a flexible printed circuit sheet bonded to the second surface of the transparent substrate, the flexible printed circuit sheet having an opening for insertion of the objective lens unit, a pair of conductor patterns, and a pair of second electrodes respectively formed at first ends of the conductor patterns. The magneto-optical head further includes a pair of conductive wires for connecting the first electrodes and the second electrodes, respectively.

Magneto-optical head and magneto-optical storage device

An ink cartridge connectable to a print head having a supply pipe which receives a supply of ink includes a casing having a first, upper chamber and a second, lower chamber communicating with each other via a communicating hole and storing the ink, a porous body provided in the first chamber and storing the ink by a negative pressure, and a connection part provided in the second chamber and connectable to the supply pipe. The connection part has normally closed valve means for communicating the print head with the second chamber by opening when the supply pipe is inserted into the connection part. The ink cartridge includes a connecting pipe extending from the first chamber into the second chamber and a filter member covering the opening of the connecting pipe in the second chamber. The filter member releases air from the connecting pipe upwardly into an upper region of the second chamber.

Ink cartridge with residual ink retaining structure

A backup unit is provided with respect to a nozzle of a print head for printing by injecting ink, and sucks the ink from the nozzle, the backup unit including: a nozzle cap sealing the nozzle by making contiguous contact with the print head; a pump; and an ink path communicating the nozzle cap and the pump; wherein the pump includes: a bellows part having an internal space formed therein; a movable rod fixed to the bellows part and having an ink passage therein; a slide valve provided in the bellows part and slidable with respect to the rod, the slide valve closing and opening a hole provided at one end of the ink passage with respect to the internal space, depending on a position of the movable rod; an ink inlet provided at the other end of the ink passage and communicating with the ink path; and an ink outlet communicating with the internal space depending on a position of the slide valve, the slide valve having a stroke shorter than a stroke of the rod, a volume of the internal space within the bellows part increasing and decreasing as the slide valve makes a reciprocating motion in a direction parallel to a center axis of the rod, the slide valve sucking the ink from the nozzle via the ink inlet by opening the hole of the ink passage to the internal space when the rod is at a position where the volume of the internal space is a maximum, and discharging the ink in the internal space via the ink outlet as the volume of the internal space decreases.

Ink jet printer having backup unit with any one or both of a pump

Growing community of inventors

Kawasaki, Japan

Shigeru Akema