Patents by Inventor Yoshikazu Ishitsuka

Yoshikazu Ishitsuka 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: 8529534
    Abstract: An excrement treating apparatus 100 includes an excretion receiver 1 and an apparatus body 2. The excretion receiver 1 includes a receiver body 10 which receives excretions and an excretion sensor 20 which detects the excretions. The apparatus body 2 includes a urine tank 51 which stores urine, a vacuum pump 52 which sucks urine received by the receiver body 10 into the urine tank 51, and a control unit 53. The excretion sensor 20 includes a pair of urine sensor electrodes 21 and 22 which detect urine received by the receiver body 10. The control unit 52 controls so as to reverse the polarity of the urine sensor electrodes 21 and 22 at prescribed time intervals. In the excrement treating apparatus, the excretion sensor's sensitivity is stabilized and urination is accurately detected and treated.
    Type: Grant
    Filed: January 6, 2009
    Date of Patent: September 10, 2013
    Assignees: Hitachi, Ltd., Uni-Charm Corporation
    Inventors: Tetsuya Tanaka, Yoshikazu Ishitsuka, Ryosuke Miyagawa, Ichiro Wada, Miou Suzuki
  • Publication number: 20110265889
    Abstract: An automatic urine collecting device (1) is provided with: a main tank (20) for collecting and containing urine received by a urine receiver; a body case for supporting the main tank (20); a suction pump (53) for sucking the urine, which is received by the urine receiver, into the main tank (20) through a urine flow path by sucking air within the main tank through an airflow path; a urine sensor for detecting urine; and a control device for outputting a control command on the basis of the result of the detection by the urine sensor. The urine sensor is provided with a main-tank infrared sensor (S31) capable of detecting bubbles present in the upper part of the urine contained in the main tank (20). The configuration enhances the reliability of the suction pump.
    Type: Application
    Filed: December 4, 2009
    Publication date: November 3, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Tetsuya Tanaka, Ryosuke Miyagawa, Yoshikazu Ishitsuka, Shigeharu Sayama
  • Patent number: 7939706
    Abstract: In a urine receptacle of an automatic urine disposal device, a urine backflow prevention sheet, with no water permeability, having funnel-shaped pores, is placed between a top sheet and a urine absorbing sheet. A pair of rectangular electrodes, constituting a urine detection sensor, is glued onto an electrode support sheet and is placed between the top sheet and the urine backflow prevention sheet. A plurality of funnel-shaped pores is formed on the urine backflow prevention sheet.
    Type: Grant
    Filed: October 10, 2007
    Date of Patent: May 10, 2011
    Assignees: Hitachi, Ltd., Uni-Charm Corporation
    Inventors: Kenichi Okabe, Junichi Kobayashi, Shigeru Machida, Ryousuke Miyagawa, Yoshikazu Ishitsuka, Ichiro Wada, Miou Suzuki
  • Publication number: 20110060299
    Abstract: An automatic urine disposal apparatus adapted to detect the presence of feces in a wide range. A detector unit in an automatic urine disposal apparatus has a urination detector 102b and a defecation detector 102c. The urination detector 102b comprises a pair of first electrodes 218a, 218b and the defecation detector 102c comprises a pair of second electrodes 143a, 143b. The pair of first electrodes 218a, 218b and the pair of second electrodes 143a, 143b respectively have regions spaced one from another and extending in parallel one to another and these regions comprise portions 102d, 102e can be wetted with urine or moisture contained in feces.
    Type: Application
    Filed: January 12, 2009
    Publication date: March 10, 2011
    Inventors: Ichiro Wada, Miou Suzuki, Ryosuke Miyagawa, Tetsuya Tanaka, Yoshikazu Ishitsuka
  • Publication number: 20110009840
    Abstract: An excrement treating apparatus 100 includes an excretion receiver 1 and an apparatus body 2. The excretion receiver 1 includes a receiver body 10 which receives excretions and an excretion sensor 20 which detects the excretions. The apparatus body 2 includes a urine tank 51 which stores urine, a vacuum pump 52 which sucks urine received by the receiver body 10 into the urine tank 51, and a control unit 53. The excretion sensor 20 includes a pair of urine sensor electrodes 21 and 22 which detect urine received by the receiver body 10. The control unit 52 controls so as to reverse the polarity of the urine sensor electrodes 21 and 22 at prescribed time intervals. In the excrement treating apparatus, the excretion sensor's sensitivity is stabilized and urination is accurately detected and treated.
    Type: Application
    Filed: January 6, 2009
    Publication date: January 13, 2011
    Applicants: HITACHI, LTD., UNI-CHARM CORPORATION
    Inventors: Tetsuya Tanaka, Yoshikazu Ishitsuka, Ryosuke Miyagawa, Ichiro Wada, Miou Suzuki
  • Patent number: 7722584
    Abstract: An automatic urine collection apparatus includes a collection container for accumulating urine transferred from a urine receiver through a tube and a main body for supporting the collection container, wherein the main body includes a suction pump for sucking the urine received by the urine receiver and carrying the urine to the collection container, a mass sensor for measuring the urine accumulated in the collection container, a control board for calculating a volume of the urine based on the measured mass of the urine, and an indicator for indicating the calculated volume of the urine.
    Type: Grant
    Filed: June 26, 2007
    Date of Patent: May 25, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Tetsuya Tanaka, Ryosuke Miyagawa, Yoshikazu Ishitsuka, Hiroshi Koizumi, Shigeharu Sayama
  • Patent number: 7536994
    Abstract: An air-fuel ratio of an air-fuel mixture produced by fuel injected from a first injector into an intake port (or into a combustion chamber) is set in a range of 28 to 38. Therefore, when the temperature and pressure rise with a first combustion started by spark-ignition around a spark plug to the fuel injected from a second injector into the combustion chamber, the timing of starting a second compressive hypergolic ignition is optimized to provide a stable combustion state free of knocking and misfire.
    Type: Grant
    Filed: December 13, 2007
    Date of Patent: May 26, 2009
    Assignee: Honda Motor Co., Ltd.
    Inventors: Takuya Yamada, Teruyoshi Morita, Yoshikazu Ishitsuka, Naoaki Takeda, Atsushi Umemoto, Ken Ogawa, Noritaka Kimura, Takeo Kobayashi
  • Publication number: 20080210198
    Abstract: An air-fuel ratio of an air-fuel mixture produced by fuel injected from a first injector into an intake port (or into a combustion chamber) is set in a range of 28 to 38. Therefore, when the temperature and pressure rise with a first combustion started by spark-ignition around a spark plug to the fuel injected from a second injector into the combustion chamber, the timing of starting a second compressive hypergolic ignition is optimized to provide a stable combustion state free of knocking and misfire.
    Type: Application
    Filed: December 13, 2007
    Publication date: September 4, 2008
    Inventors: Takuya Yamada, Teruyoshi Morita, Yoshikazu Ishitsuka, Naoaki Takeda, Atsushi Umemoto, Ken Ogawa, Noritaka Kimura, Takeo Kobayashi
  • Publication number: 20080033386
    Abstract: In a urine receptacle of an automatic urine disposal device, a urine backflow prevention sheet, with no water permeability, having funnel-shaped pores, is placed between a top sheet and a urine absorbing sheet. A pair of rectangular electrodes, constituting a urine detection sensor, is glued onto an electrode support sheet and is placed between the top sheet and the urine backflow prevention sheet. A plurality of funnel-shaped pores is formed on the urine backflow prevention sheet.
    Type: Application
    Filed: October 10, 2007
    Publication date: February 7, 2008
    Inventors: Kenichi Okabe, Junichi Kobayashi, Shigeru Machida, Ryousuke Miyagawa, Yoshikazu Ishitsuka, Ichiro Wada, Miou Suzuki
  • Publication number: 20080004576
    Abstract: An automatic urine collection apparatus includes a collection container for accumulating urine transferred from a urine receiver through a tube and a main body for supporting the collection container, wherein the main body includes a suction pump for sucking the urine received by the urine receiver and carrying the urine to the collection container, a mass sensor for measuring the urine accumulated in the collection container, a control board for calculating a volume of the urine based on the measured mass of the urine, and an indicator for indicating the calculated volume of the urine.
    Type: Application
    Filed: June 26, 2007
    Publication date: January 3, 2008
    Inventors: Tetsuya TANAKA, Ryosuke Miyagawa, Yoshikazu Ishitsuka, Hiroshi Koizumi, Shigeharu Sayama
  • Patent number: 7220250
    Abstract: A urine receiver which is sanitary, easy to attach, and furthermore, prevents urine leakage even when a wearer repeatedly changes positions is provided. A urine receiver 10 is implemented in a urine collection processing system wherein urine discharged from the wearer is suctioned into a urine tank via a urethral tube.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: May 22, 2007
    Assignees: Uni-Charm Corporation, Hitachi, Ltd.
    Inventors: Miou Suzuki, Ichiro Wada, Ryosuke Miyagawa, Yoshikazu Ishitsuka, Nobuaki Yoshioka, Junichi Kobayashi, Shigeru Machida
  • Publication number: 20060159567
    Abstract: In the hand-held vacuum pump 1, the main body 1a of the vacuum pump in which the pump room 4a is formed and the electric motor 2 are connected via the shaft coupling 21. The main body of the vacuum pump has the driving shaft 10. One ball bearing 15b supporting the driving shaft is supported by the cylinder. The other ball bearing 15a is sup ported by the flange 5 mounted hermetically at the cylinder. The end part of the cylinder at the side of the electric motor accommodates the shaft coupling, and is engaged with the end part of the electric motor so that the electric motor may support the cylinder.
    Type: Application
    Filed: July 29, 2005
    Publication date: July 20, 2006
    Inventors: Wataru Tazoe, Ryosuke Miyagawa, Yoshikazu Ishitsuka, Tetsuya Tanaka, Kiyoshi Azuhata, Isao Koromegawa
  • Publication number: 20060015081
    Abstract: A urine receiver which is sanitary, easy to attach, and furthermore, prevents urine leakage even when a wearer repeatedly changes positions is provided. A urine receiver 10 is implemented in a urine collection processing system wherein urine discharged from the wearer is suctioned into a urine tank via a urethral tube.
    Type: Application
    Filed: July 13, 2005
    Publication date: January 19, 2006
    Applicants: UNI-CHARM CORPORATION HITACHI, LTD., HITACHI, LTD.
    Inventors: Miou Suzuki, Ichiro Wada, Ryosuke Miyagawa, Yoshikazu Ishitsuka, Nobuaki Yoshioka, Junichi Kobayashi, Shigeru Machida
  • Publication number: 20050070861
    Abstract: In a urine receptacle of an automatic urine disposal device, a urine backflow prevention sheet, with no water permeability, and having funnel-shaped pores, is placed between a top sheet and a urine absorbing sheet. A pair of rectangular electrodes, constituting a urine detection sensor, is glued onto an electrode support sheet and is placed between the top sheet and the urine backflow prevention sheet. A plurality of funnel-shaped pores is formed on the urine backflow prevention sheet.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 31, 2005
    Inventors: Kenichi Okabe, Junichi Kobayashi, Shigeru Machida, Ryousuke Miyagawa, Yoshikazu Ishitsuka, Ichiro Wada, Miou Suzuki
  • Publication number: 20050070862
    Abstract: An automatic urine disposal device has a urine receptacle for suctioning urine discharged by a device wearer. A urine drainage port is formed on this urine receptacle, and from this urine drainage port, urine is directed into a urine tank. The urine tank is sealed by a lid, and tube guide holes are formed on the lid. The urine drainage tube is connected to one of the tube guide holes via a mounting fixture while maintaining the airtightness of the urine tank, and the urine drainage tube can be detachable from/attachable to the tube guide hole.
    Type: Application
    Filed: September 30, 2004
    Publication date: March 31, 2005
    Inventors: Wataru Tazoe, Junichi Kobayashi, Shigeru Machida, Ryousuke Miyagawa, Yoshikazu Ishitsuka, Ichiro Wada, Miou Suzuki
  • Patent number: 5061092
    Abstract: A thermal printer wherein a sheet of recording paper is interposed between two drums provided on axially opposite sides of a shaft of a platen roll facing a line-type thermal head and an endless belt mounted on outer peripheries of the drum. One way clutches provided on a shaft of the drum will cause the paper to rotate together with the drums during recording and the recording paper is driven by the endless belt during paper feed and delivery operations to slide relative to the drums. The sheet of paper is fed to a lower portion of an open portion of the drums and is removed from an upper portion of the open portion of the drums so that the feed and delivery of the sheet of paper can be effected upon rotation of the drums in one direction, and the printing operation is started after a detection of a trailing end of the sheet of paper so that the printing operation can be reformed regardless of the length of the sheet of paper immediately after the feed of the sheet of paper.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: October 29, 1991
    Assignees: Hitachi, Ltd., Hitachi Koki Co., Ltd.
    Inventors: Fumio Takeda, Takashi Yoshida, Hideki Tanaka, Yoshikazu Ishitsuka, Tsutomu Omine, Masao Miyasaka, Mitsugu Asano, Akira Igarashi, Hiroshi Takahagi
  • Patent number: D536782
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: February 13, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Koizumi, Ryosuke Miyagawa, Yoshikazu Ishitsuka, Tetsuya Tanaka, Shigeharu Sayama
  • Patent number: D564655
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: March 18, 2008
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Koizumi, Ryosuke Miyagawa, Yoshikazu Ishitsuka, Tetsuya Tanaka, Shigeharu Sayama
  • Patent number: D625407
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: October 12, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Hiroshi Koizumi, Ryosuke Miyagawa, Tetsuya Tanaka, Yoshikazu Ishitsuka, Shigeharu Sayama