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).

  • Patent number: 9857770
    Abstract: 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: Grant
    Filed: September 6, 2016
    Date of Patent: January 2, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masatsugu Hatanaka, Kiwamu Morita, Hisashi Yamanaka
  • Publication number: 20160370760
    Abstract: 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: Application
    Filed: September 6, 2016
    Publication date: December 22, 2016
    Inventors: Masatsugu HATANAKA, Kiwamu MORITA, Hisashi YAMANAKA
  • Patent number: 9465359
    Abstract: 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: Grant
    Filed: April 30, 2015
    Date of Patent: October 11, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Masatsugu Hatanaka, Kiwamu Morita, Hisashi Yamanaka
  • Publication number: 20160004216
    Abstract: 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: Application
    Filed: April 30, 2015
    Publication date: January 7, 2016
    Inventors: Masatsugu HATANAKA, Kiwamu MORITA, Hisashi YAMANAKA
  • Patent number: 7899342
    Abstract: 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: Grant
    Filed: April 9, 2004
    Date of Patent: March 1, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kayo Kamei, Motokazu Nakao, Masatsugu Hatanaka, Shigeru Yoshida
  • Patent number: 7693472
    Abstract: 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: Grant
    Filed: January 9, 2007
    Date of Patent: April 6, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiaki Hiramoto, Seiichi Kizu, Masatsugu Hatanaka, Motokazu Nakao
  • Patent number: 7686296
    Abstract: 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: Grant
    Filed: September 19, 2005
    Date of Patent: March 30, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hidetoshi Kaneko, Masatsugu Hatanaka, Motokazu Nakao, Yoshinori Shiraishi, Hideshi Izumi, Toyokazu Mori, Yuhi Akagawa
  • Patent number: 7469897
    Abstract: 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: Grant
    Filed: July 28, 2004
    Date of Patent: December 30, 2008
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiaki Hiramoto, Kayo Kamei, Masatsugu Hatanaka, Shigeru Yoshida, Motokazu Nakao
  • Patent number: 7304744
    Abstract: 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: Grant
    Filed: December 23, 1999
    Date of Patent: December 4, 2007
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masatsugu Hatanaka, Junichi Tanaka, Toru Tanigawa, Yasunobu Tagusa
  • Publication number: 20070172271
    Abstract: 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: Application
    Filed: January 9, 2007
    Publication date: July 26, 2007
    Inventors: Yoshiaki Hiramoto, Seiichi Kizu, Masatsugu Hatanaka, Motokazu Nakao
  • Publication number: 20060228122
    Abstract: 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: Application
    Filed: April 9, 2004
    Publication date: October 12, 2006
    Inventors: Kayo Kamei, Motokazu Nakao, Masatsugu Hatanaka, Shigeru Yoshida
  • Patent number: 7046955
    Abstract: 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: Grant
    Filed: January 28, 2004
    Date of Patent: May 16, 2006
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masatsugu Hatanaka, Kayo Kamei, Yoshiaki Hiramoto, Seiichi Kizu, Yasushi Matsutomo
  • Publication number: 20060071413
    Abstract: 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: Application
    Filed: September 19, 2005
    Publication date: April 6, 2006
    Inventors: Hidetoshi Kaneko, Masatsugu Hatanaka, Motokazu Nakao, Yoshinori Shiraishi, Hideshi Izumi, Toyokazu Mori, Yuhi Akagawa
  • Publication number: 20050023748
    Abstract: 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: Application
    Filed: July 28, 2004
    Publication date: February 3, 2005
    Inventors: Yoshiaki Hiramoto, Kayo Kamei, Masatsugu Hatanaka, Shigeru Yoshida, Motokazu Nakao
  • Publication number: 20040184855
    Abstract: 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: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Masatsugu Hatanaka, Kayo Kamei, Yoshiaki Hiramoto, Seiichi Kizu, Yasushi Matsutomo
  • Patent number: 6336756
    Abstract: 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: Grant
    Filed: January 21, 2000
    Date of Patent: January 8, 2002
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Tetsuya Toyama, Nobuya Kishi, Yoshiaki Tomaru, Nobuyoshi Miyao, Toshihiro Asaka, Takeshi Arai, Seiji Takeda, Masatsugu Hatanaka