Sharp Kabushiki Kaisha Corporation

National Institute of Advanced Industrial Science and Technology

Haruhiko Deguchi

Shigeaki Kakiwaki

Hidetsugu Kawai

Tohru Kira

Shigeru Nishio

Tomohisa Komoda

Hirotsugu Matoba

Hirokazu Nakamura

Kazuhiro Murata

Tomomi Tanaka

Toshihiko Fukushima

Masaki Matsushita

Yasuhiro Sakamoto

Noboru Fujita

Kazuyoshi Imae

Takaya Nakabayashi

Tsuneo Nakamura

Chiyoshi Yoshioka

Kazuhiro Uneyama

An ink jet apparatus electrifies ink in a nozzle, and ejects the ink from an ink ejecting hole onto a printing medium by a first electric field generated between the nozzle and the printing medium. The apparatus includes an ink catching device including an ink catching portion adjacent to the nozzle that catches an ejected substance. Between the nozzle and the ink catching portion, the apparatus applies a voltage for generating a second electric field which (i) causes an ejected substance, formed from the ink or the ink whose viscosity is changed, to be ejected from the nozzle, and (ii) causes the ink catching portion to attract the ejected substance. The apparatus, utilizes an electrostatic force to eject fluid, removes a clogging of an ejection head at any position, realizes less initial ejection fluctuation and improves the reliability of ejection.

Electrostatic attraction fluid ejecting method and apparatus

An inkjet head () has a liquid flow path section () for receiving liquid and, in response to application of a voltage, ejecting the liquid to an object on which a drawing is to be made. The degree of design freedom of the shape of the liquid channel section () or the shape of a liquid channel in the liquid channel section () can be improved because the liquid channel section () is formed on the upper surface of a substrate. Furthermore, the inkjet head can have a structure corresponding to the properties of liquid to be ejected or to an object to which the liquid is to be ejected.

Inkjet head and method for manufacturing the same

A nozzle plate () of the present invention is arranged such that, between (i) a first nozzle layer () having a first nozzle hole (orifice) () that discharges a liquid substance and (ii) a second nozzle layer () having a second nozzle hole () that is connected to the first nozzle hole () and receives the liquid substance, a blocking layer () having a higher resistance to etching than the first nozzle layer () is provided. In this nozzle plate (), the blocking layer () is locally formed around a connecting part at which the first nozzle hole () is connected to the second nozzle hole (). On account of this, the first nozzle hole of the nozzle plate is highly precisely formed, and the deformation of the nozzle plate, e.g. warpage, hardly occurs.

Nozzle plate and method of manufacturing the same

An organic insulating coating formed on a substrate is composed of two layers of a first parylene coating and a second parylene coating. Heat treatment is performed to at least the first parylene coating after being formed, at a temperature below 125&#xb0; C. for two hours. Then the second parylene coating is formed on the first parylene coating. Occurrence of pinholes is thus prevented at least in one of the two layers of the organic coatings, with the result that insulating properties of the coatings are improved.

Method for producing organic insulating coating and ink-jet printhead produced according to the method

A thermal-type infrared radiation detector cell includes a diaphragm structural body that forms a gap of a predetermined width over a semiconductor substrate. The diaphragm structural body is capable of either providing metal wiring films that doubles as an infrared radiation reflector film or providing a high refractive index film having a thickness set to satisfy the expression d&equals;&lgr;&times;&lcub;1/(4&times;n)&rcub;, where n is the refractive index of the high refractive index film, and &lgr; is the wavelengths of infrared rays. As a result, in the former option, no separate infrared radiation reflector film is required, whilst in the latter no separate infrared radiation absorption layer is required. This facilitates the manufacturing process and improves the sensitivity in infrared radiation detection.

Thermal-type infrared radiation detector cell and image capture device incorporating the same

A magnetoresistive effect device is formed by layering a nonmagnetic Co oxide film, a pinned magnetization layer made of Co, a nonmagnetic layer made of Cu, a free magnetization layer made of NiFe in this order on a substrate made of glass or Si. By arranging the nonmagnetic Co oxide film in contact with the pinned magnetization layer, it is possible to produce a magnetoresistive effect device with a high saturation field and a high sensitivity.

Magnetoresistive effect device utilizing an oxide layer adjacent one of

An improved process for producing a thin film magnetic head includes forming a nonmagnetic material layer over a lower magnetic core layer with an electrically conductive coil layer embedded in the nonmagnetic material layer. It further includes forming an upper magnetic core layer of a predetermined pattern by a specific method over the resultant to provide the thin film magnetic head.

Process for producing thin film magnetic head

Growing community of inventors

Tenri, Japan

Haruhiko Deguchi