Patents by Inventor Haruhiko Deguchi
Haruhiko Deguchi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7922295Abstract: 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.Type: GrantFiled: August 20, 2004Date of Patent: April 12, 2011Assignees: Sharp Kabushiki Kaisha, National Institute of Advanced Industrial Science and TechnologyInventors: Hidetsugu Kawai, Shigeru Nishio, Haruhiko Deguchi, Shigeaki Kakiwaki, Kazuhiro Murata
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Patent number: 7819504Abstract: An inkjet head (1) has a liquid flow path section (3) 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 (3) or the shape of a liquid channel in the liquid channel section (3) can be improved because the liquid channel section (3) 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.Type: GrantFiled: December 6, 2005Date of Patent: October 26, 2010Assignee: Sharp Kabushiki KaishaInventors: Haruhiko Deguchi, Shigeru Nishio, Hidetsugu Kawai
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Patent number: 7568785Abstract: A nozzle plate (8) of the present invention is arranged such that, between (i) a first nozzle layer (1) having a first nozzle hole (orifice) (11a) that discharges a liquid substance and (ii) a second nozzle layer (2) having a second nozzle hole (11b) that is connected to the first nozzle hole (11a) and receives the liquid substance, a blocking layer (3) having a higher resistance to etching than the first nozzle layer (1) is provided. In this nozzle plate (8), the blocking layer (3) is locally formed around a connecting part at which the first nozzle hole (11a) is connected to the second nozzle hole (11b). 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.Type: GrantFiled: April 28, 2004Date of Patent: August 4, 2009Assignee: Sharp Kabushiki KaishaInventors: Haruhiko Deguchi, Chiyoshi Yoshioka, Yasuhiro Sakamoto, Hidetsugu Kawai, Shigeaki Kakiwaki
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Publication number: 20080049074Abstract: An inkjet head (1) has a liquid flow path section (3) 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 (3) or the shape of a liquid channel in the liquid channel section (3) can be improved because the liquid channel section (3) 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.Type: ApplicationFiled: December 6, 2005Publication date: February 28, 2008Applicant: Sharp Kabushiki KaishaInventors: Haruhiko Deguchi, Shigeru Nishio, Hidetsugu Kawai
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Publication number: 20070195123Abstract: A nozzle plate (8) of the present invention is arranged such that, between (i) a first nozzle layer (1) having a first nozzle hole (orifice) (11a) that discharges a liquid substance and (ii) a second nozzle layer (2) having a second nozzle hole (11b) that is connected to the first nozzle hole (11a) and receives the liquid substance, a blocking layer (3) having a higher resistance to etching than the first nozzle layer (1) is provided. In this nozzle plate (8), the blocking layer (3) is locally formed around a connecting part at which the first nozzle hole (11a) is connected to the second nozzle hole (11b). 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.Type: ApplicationFiled: April 10, 2007Publication date: August 23, 2007Applicant: Sharp Kabushiki KaishaInventors: Haruhiko Deguchi, Chiyoshi Yoshioka, Yasuhiro Sakamoto, Hidetsugu Kawai, Shigeaki Kakiwaki
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Publication number: 20070195152Abstract: An ink jet apparatus electrifies ink (2) in a nozzle (4), and ejects the ink (2) from an ink ejecting hole (4b) onto a printing medium (8) by a first electric field generated between the nozzle (4) and the printing medium (8). The ink jet apparatus includes an ink catching device which includes an ink catching portion (14) provided at a position adjacent to the nozzle (4) and catches an ejected substance ejected from the nozzle (4). In addition, between the nozzle (4) and the ink catching portion (14), the ink jet apparatus applies a voltage for generating a second electric field which (i) causes the ejected substance, which is formed from the ink (2) or the ink (2) whose viscosity is changed, to be ejected from the nozzle (4) and (ii) causes the ink catching portion to attract the ejected substance.Type: ApplicationFiled: August 20, 2004Publication date: August 23, 2007Applicant: Sharp Kabushiki KaishaInventors: Hidetsugu Kawai, Shigeru Nishio, Haruhiko Deguchi, Shigeaki Kakiwaki, Kazuhiro Murata
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Publication number: 20070019036Abstract: An inkjet head (1) includes: a substrate (2); a liquid passage section (3) formed on a surface of the substrate (2) to provide a passage for ink; and an eject section (5), which is a part of the liquid passage section (3), including an ejection opening (51) through which ink is ejected. At least the part of the eject section (5) which makes up the ejection opening (51) protrudes from an end of the substrate (2). Of the internal angles of a cross-section substantially perpendicular to a direction in which the protruding eject section (5) protrudes or a cross-section substantially parallel to the direction, all those internal angles, ? to ?, which are formed by the external surfaces of the eject section (5) are greater than 20°.Type: ApplicationFiled: July 18, 2006Publication date: January 25, 2007Applicant: Sharp Kabushiki KaishaInventor: Haruhiko Deguchi
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Publication number: 20060176338Abstract: A nozzle plate (8) of the present invention is arranged such that, between (i) a first nozzle layer (1) having a first nozzle hole (orifice) (11a) that discharges a liquid substance and (ii) a second nozzle layer (2) having a second nozzle hole (11b) that is connected to the first nozzle hole (11a) and receives the liquid substance, a blocking layer (3) having a higher resistance to etching than the first nozzle layer (1) is provided. In this nozzle plate (8), the blocking layer (3) is locally formed around a connecting part at which the first nozzle hole (11a) is connected to the second nozzle hole (11b). 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.Type: ApplicationFiled: April 28, 2004Publication date: August 10, 2006Applicant: SHARP KABUSHIKI KAISHAInventors: Haruhiko Deguchi, Chiyoshi Yoshioka, Yasuhiro Sakamoto, Hidetsugu Kawai, Shigeaki Kakiwaki
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Patent number: 7066582Abstract: 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° 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.Type: GrantFiled: August 8, 2003Date of Patent: June 27, 2006Assignee: Sharp Kabushiki KaishaInventors: Haruhiko Deguchi, Shigeaki Kakiwaki, Hirotsugu Matoba, Hirokazu Nakamura, Masaki Matsushita, Tomomi Tanaka
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Publication number: 20040032466Abstract: 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° 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.Type: ApplicationFiled: August 8, 2003Publication date: February 19, 2004Applicant: Sharp Kabushiki KaishaInventors: Haruhiko Deguchi, Shigeaki Kakiwaki, Hirotsugu Matoba, Hirokazu Nakamura, Masaki Matsushita, Tomomi Tanaka
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Patent number: 6489614Abstract: 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=&lgr;×{1/(4×n)}, 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.Type: GrantFiled: September 15, 2000Date of Patent: December 3, 2002Assignee: Sharp Kabushiki KaishaInventors: Haruhiko Deguchi, Toshihiko Fukushima, Tomohisa Komoda
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Patent number: 5862021Abstract: 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.Type: GrantFiled: June 13, 1997Date of Patent: January 19, 1999Assignee: Sharp Kabushiki KaishaInventors: Haruhiko Deguchi, Takaya Nakabayashi, Tomohisa Komoda, Tohru Kira, Noboru Fujita, Kazuhiro Uneyama
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Patent number: 4966648Abstract: 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.Type: GrantFiled: June 23, 1989Date of Patent: October 30, 1990Assignee: Sharp Kabushiki KaishaInventors: Tsuneo Nakamura, Kazuyoshi Imae, Haruhiko Deguchi, Tohru Kira