Patents by Inventor Masatsugu Hatanaka
Masatsugu Hatanaka 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: 9857770Abstract: Disclosed is an air blowing system including: an air blowing device; a duct that guides air blown by the air blowing device; and a ventilation section disposed downstream of the duct in terms of an air blowing direction in which air is blown by the air blowing device so that the air blown by the air blowing device strikes and passes through the ventilation section, wherein the duct has a distorted portion where a part of an inner wall face of the duct located between the air blowing device and the ventilation section is distorted perpendicular or substantially perpendicular to the air blowing direction so that the air blown by the air blowing device flows perpendicularly or substantially perpendicularly to the air blowing direction.Type: GrantFiled: September 6, 2016Date of Patent: January 2, 2018Assignee: Sharp Kabushiki KaishaInventors: Masatsugu Hatanaka, Kiwamu Morita, Hisashi Yamanaka
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Publication number: 20160370760Abstract: Disclosed is an air blowing system including: an air blowing device; a duct that guides air blown by the air blowing device; and a ventilation section disposed downstream of the duct in terms of an air blowing direction in which air is blown by the air blowing device so that the air blown by the air blowing device strikes and passes through the ventilation section, wherein the duct has a distorted portion where a part of an inner wall face of the duct located between the air blowing device and the ventilation section is distorted perpendicular or substantially perpendicular to the air blowing direction so that the air blown by the air blowing device flows perpendicularly or substantially perpendicularly to the air blowing direction.Type: ApplicationFiled: September 6, 2016Publication date: December 22, 2016Inventors: Masatsugu HATANAKA, Kiwamu MORITA, Hisashi YAMANAKA
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Patent number: 9465359Abstract: Disclosed is an air blowing system including: an air blowing device; a duct that guides air blown by the air blowing device; and a ventilation section disposed downstream of the duct in terms of an air blowing direction in which air is blown by the air blowing device so that the air blown by the air blowing device strikes and passes through the ventilation section, wherein the duct has a distorted portion where a part of an inner wall face of the duct located between the air blowing device and the ventilation section is distorted perpendicular or substantially perpendicular to the air blowing direction so that the air blown by the air blowing device flows perpendicularly or substantially perpendicularly to the air blowing direction.Type: GrantFiled: April 30, 2015Date of Patent: October 11, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Masatsugu Hatanaka, Kiwamu Morita, Hisashi Yamanaka
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Publication number: 20160004216Abstract: Disclosed is an air blowing system including: an air blowing device; a duct that guides air blown by the air blowing device; and a ventilation section disposed downstream of the duct in terms of an air blowing direction in which air is blown by the air blowing device so that the air blown by the air blowing device strikes and passes through the ventilation section, wherein the duct has a distorted portion where a part of an inner wall face of the duct located between the air blowing device and the ventilation section is distorted perpendicular or substantially perpendicular to the air blowing direction so that the air blown by the air blowing device flows perpendicularly or substantially perpendicularly to the air blowing direction.Type: ApplicationFiled: April 30, 2015Publication date: January 7, 2016Inventors: Masatsugu HATANAKA, Kiwamu MORITA, Hisashi YAMANAKA
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Patent number: 7899342Abstract: When forming an image, if there are not enough sheets remaining in a paper feed cassette to satisfy the image forming request, the image forming operation is not executed, and along with prompting the user to refill the paper, the paper feed cassette is pushed out towards an uninstalled state. The apparatus waits for a paper refill, and begins the image forming operation after that paper refill.Type: GrantFiled: April 9, 2004Date of Patent: March 1, 2011Assignee: Sharp Kabushiki KaishaInventors: Kayo Kamei, Motokazu Nakao, Masatsugu Hatanaka, Shigeru Yoshida
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Patent number: 7693472Abstract: An image forming apparatus includes: a paper conveying portion for conveying a paper; an image forming portion for forming a visible toner image on the paper being conveyed, with a toner in accordance with input image information; and a fixing unit for fusing and fixing an unfixed toner image formed on the paper to the paper by using a heat roller and a pressing roller, and is constructed such that the pressing roller is composed of a metal core that forms a core shaft of the pressing roller and an elastic part that covers an outer periphery of the metal core, and a heat capacity at a center portion of the pressing roller with respect to a direction perpendicular to a paper's direction of conveyance is smaller than heat capacities at both ends of the pressing roller.Type: GrantFiled: January 9, 2007Date of Patent: April 6, 2010Assignee: Sharp Kabushiki KaishaInventors: Yoshiaki Hiramoto, Seiichi Kizu, Masatsugu Hatanaka, Motokazu Nakao
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Patent number: 7686296Abstract: A sheet stacking device includes: an evacuation section for transporting and ejecting sheets; a sheet exit tray for stacking the ejected sheets; an arm supporting member; and a sheet presser arm including a supported end at one end, a free end at the other end which is capable of pressing the sheets stacked on the sheet exit tray directly or via a contact member attached to the free end, and a flexure portion having flexibility between the supported end and the free end. The supported end is attached to the arm supporting member. The arm can apply, by the flexibility of the flexure portion, a pressing force to the sheets stacked on the sheet exit tray and a repulsive force to each of the ejected sheets when a front end of the ejected sheet strikes against the arm.Type: GrantFiled: September 19, 2005Date of Patent: March 30, 2010Assignee: Sharp Kabushiki KaishaInventors: Hidetoshi Kaneko, Masatsugu Hatanaka, Motokazu Nakao, Yoshinori Shiraishi, Hideshi Izumi, Toyokazu Mori, Yuhi Akagawa
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Patent number: 7469897Abstract: A shifter is equipped with a rack and a stopper. A transmission gear transmits power from an electric motor to the rack. A retention pin extends vertically downward from the transmission gear. When the shifter slides to an origin, the retention pin locks the stopper, which causes the electric motor to step out. On detecting the step-out of the electric motor, the position control device recognizes that the shifter has reached the origin (the reference position) and has been fixed at the position, thus setting the shifter position.Type: GrantFiled: July 28, 2004Date of Patent: December 30, 2008Assignee: Sharp Kabushiki KaishaInventors: Yoshiaki Hiramoto, Kayo Kamei, Masatsugu Hatanaka, Shigeru Yoshida, Motokazu Nakao
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Apparatus and method for measuring the thickness of a thin film via the intensity of reflected light
Patent number: 7304744Abstract: A thin film thickness measurement apparatus that can measure immediately after film growth thickness of a thin film of a substrate that is grown includes a light receiving/projecting unit directing light substantially perpendicular to the substrate and receiving light reflected from the substrate, and an analyze unit analyzing thickness of a thin film of the substrate according to intensity of reflected light received by the light receiving/projecting unit.Type: GrantFiled: December 23, 1999Date of Patent: December 4, 2007Assignee: Sharp Kabushiki KaishaInventors: Masatsugu Hatanaka, Junichi Tanaka, Toru Tanigawa, Yasunobu Tagusa -
Publication number: 20070172271Abstract: An image forming apparatus includes: a paper conveying portion for conveying a paper; an image forming portion for forming a visible toner image on the paper P being conveyed, with a toner in accordance with input image information; and a fixing unit for fusing and fixing the unfixed toner image formed on the paper to the paper by means of a heat roller and a pressing roller, and is constructed such that the pressing roller is composed of a metal core that forms the core shaft of the pressing roller and an elastic part that covers the outer periphery of the metal core, and the heat capacity at the center portion of the pressing roller with respect to the direction perpendicular to the paper's direction of conveyance is smaller than the heat capacities at both ends of the pressing roller.Type: ApplicationFiled: January 9, 2007Publication date: July 26, 2007Inventors: Yoshiaki Hiramoto, Seiichi Kizu, Masatsugu Hatanaka, Motokazu Nakao
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Publication number: 20060228122Abstract: When forming an image, if there are not enough sheets remaining in a paper feed cassette to satisfy the image forming request, the image forming operation is not executed, and along with prompting the user to refill the paper, the paper feed cassette is pushed out towards an uninstalled state. The apparatus waits for a paper refill, and begins the image forming operation after that paper refill.Type: ApplicationFiled: April 9, 2004Publication date: October 12, 2006Inventors: Kayo Kamei, Motokazu Nakao, Masatsugu Hatanaka, Shigeru Yoshida
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Patent number: 7046955Abstract: A front access type image forming apparatus includes an image scanning section located at an upper part of a housing of the apparatus for obtaining image information from an original, a sheet feeding section located at a lower part of the housing, and an image forming section disposed between the image scanning section and the sheet feeding section at one side of the housing. The image scanning section, the image forming section and the sheet feeding section together form a generally U shape in frontal cross section, a sheet delivery portion being formed between the image scanning section and the sheet feeding section. The length of a sheet delivery tray as measured along a sheet transport direction is made smaller than the length of a maximum printable sheet size so that large-sized printed sheets discharged onto the sheet delivery tray stick out from one side of the apparatus.Type: GrantFiled: January 28, 2004Date of Patent: May 16, 2006Assignee: Sharp Kabushiki KaishaInventors: Masatsugu Hatanaka, Kayo Kamei, Yoshiaki Hiramoto, Seiichi Kizu, Yasushi Matsutomo
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Publication number: 20060071413Abstract: A sheet stacking device includes: an evacuation section for transporting and ejecting sheets; a sheet exit tray for stacking the ejected sheets; an arm supporting member; and a sheet presser arm including a supported end at one end, a free end at the other end which is capable of pressing the sheets stacked on the sheet exit tray directly or via a contact member attached to the free end, and a flexure portion having flexibility between the supported end and the free end. The supported end is attached to the arm supporting member. The arm can apply, by the flexibility of the flexure portion, a pressing force to the sheets stacked on the sheet exit tray and a repulsive force to each of the ejected sheets when a front end of the ejected sheet strikes against the arm.Type: ApplicationFiled: September 19, 2005Publication date: April 6, 2006Inventors: Hidetoshi Kaneko, Masatsugu Hatanaka, Motokazu Nakao, Yoshinori Shiraishi, Hideshi Izumi, Toyokazu Mori, Yuhi Akagawa
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Publication number: 20050023748Abstract: A shifter is equipped with a rack and a stopper. A transmission gear transmits power from an electric motor to the rack. A retention pin extends vertically downward from the transmission gear. When the shifter slides to an origin, the retention pin locks the stopper, which causes the electric motor to step out. On detecting the step-out of the electric motor, the position control device recognizes that the shifter has reached the origin (the reference position) and has been fixed at the position, thus setting the shifter position.Type: ApplicationFiled: July 28, 2004Publication date: February 3, 2005Inventors: Yoshiaki Hiramoto, Kayo Kamei, Masatsugu Hatanaka, Shigeru Yoshida, Motokazu Nakao
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Publication number: 20040184855Abstract: A front access type image forming apparatus includes an image scanning section located at an upper part of a housing of the apparatus for obtaining image information from an original, a sheet feeding section located at a lower part of the housing, and an image forming section disposed between the image scanning section and the sheet feeding section at one side of the housing. The image scanning section, the image forming section and the sheet feeding section together form a generally U shape in frontal cross section, a sheet delivery portion being formed between the image scanning section and the sheet feeding section. The length of a sheet delivery tray as measured along a sheet transport direction is made smaller than the length of a maximum printable sheet size so that large-sized printed sheets discharged onto the sheet delivery tray stick out from one side of the apparatus.Type: ApplicationFiled: January 28, 2004Publication date: September 23, 2004Applicant: Sharp Kabushiki KaishaInventors: Masatsugu Hatanaka, Kayo Kamei, Yoshiaki Hiramoto, Seiichi Kizu, Yasushi Matsutomo
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Patent number: 6336756Abstract: A compact ink jet printer having a small amplitude width in the horizontal direction of an ink carriage includes: a shaft provided rotatably about a predetermined axis; a strut fixed to the shaft so as to move along an arc about the axis with rotation of the shaft; an ink carriage having a plurality of ink heads provided at a predetermined direction from the shaft of the strut; and a control device controlling forwarding of a recording sheet, rotational motion of the shaft, and ink jetting from the plurality of ink heads.Type: GrantFiled: January 21, 2000Date of Patent: January 8, 2002Assignee: Sharp Kabushiki KaishaInventors: Tetsuya Toyama, Nobuya Kishi, Yoshiaki Tomaru, Nobuyoshi Miyao, Toshihiro Asaka, Takeshi Arai, Seiji Takeda, Masatsugu Hatanaka