Patents by Inventor Kazufumi Matsukawa

Kazufumi Matsukawa 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: 7603953
    Abstract: A conveying apparatus comprising a traveling unit which runs; a winding roller which is supported by the traveling unit; a belt which is wound on the winding roller so as to be unwound and wound by the winding roller; a pulley which has a peripheral surface guiding the belt and a diameter smaller than the diameter of the winding roller; and the pulley having no flange on both ends thereof; a belt positioning guide which is provided below the pulley and guides both edges of the belt in the win direction thereof so that the belt is positioned in the width direction; and a support unit which is attached to the belt and supports a conveyed object.
    Type: Grant
    Filed: July 13, 2006
    Date of Patent: October 20, 2009
    Assignee: Sumco Corporation
    Inventors: Shunichi Imao, Akihiko Kosugi, Tetsuo Ajimine, Kazufumi Matsukawa
  • Publication number: 20070012642
    Abstract: A conveying apparatus comprising a traveling unit which runs; a winding roller which is supported by the traveling unit; a belt which is wound on the winding roller so as to be unwound and wound by the winding roller; a pulley which has a peripheral surface guiding the belt and a diameter smaller than the diameter of the winding roller; and the pulley having no flange on both ends thereof; a belt positioning guide which is provided below the pulley and guides both edges of the belt in the win direction thereof so that the belt is positioned in the width direction; and a support unit which is attached to the belt and supports a conveyed object.
    Type: Application
    Filed: July 13, 2006
    Publication date: January 18, 2007
    Inventors: Shunichi Imao, Akihiko Kosugi, Tetsuo Ajimine, Kazufumi Matsukawa
  • Patent number: 6931996
    Abstract: A pair of rail members have upward wheel supporting surfaces and inward roller guide surfaces, respectively. A fixed path includes linear path portions and a branching-and-joining path portion. Linear-side guide members extending along the linear path portions and a branching-and-joining-side guide member extending along the branching-and-joining path portion are provided in a branching-and-joining section. A moving body is provided with wheels and side guide rollers supported and guided on a wheel supporting surface and a roller guide surface, respectively. A direction restricting member guided by sideward guide sections of the guide members is driven by a lateral-movement unit to move freely in a lateral direction between a location corresponding to the linear-side guide member and a location corresponding to the branching-and-joining-side guide member.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: August 23, 2005
    Assignee: Daifuku Co., Ltd.
    Inventor: Kazufumi Matsukawa
  • Publication number: 20040025739
    Abstract: A pair of rail members have upward wheel supporting surfaces and inward roller guide surfaces, respectively. A fixed path includes linear path portions and a branching-and-joining path portion. Linear-side guide members extending along the linear path portions and a branching-and-joining-side guide member extending along the branching-and-joining path portion are provided in a branching-and-joining section. A moving body is provided with wheels and side guide rollers supported and guided on a wheel supporting surface and a roller guide surface, respectively. A direction restricting member guided by sideward guide sections of the guide members is driven by a lateral-movement unit to move freely in a lateral direction between a location corresponding to the linear-side guide member and a location corresponding to the branching-and-joining-side guide member.
    Type: Application
    Filed: August 6, 2003
    Publication date: February 12, 2004
    Applicant: Daifuku Co., Ltd.
    Inventor: Kazufumi Matsukawa
  • Patent number: 6629502
    Abstract: A pair of rail members have upward wheel supporting surfaces and inward roller guide surfaces, respectively. A fixed path includes linear path portions and a branching-and-joining path portion. Linear-side guide members extending along the linear path portions and a branching-and-joining-side guide member extending along the branching-and-joining path portion are provided in a branching-and-joining section. A moving body is provided with wheels and side guide rollers supported and guided on a wheel supporting surface and a roller guide surface, respectively. A direction restricting member guided by sideward guide sections of the guide members is driven by a lateral-movement unit to move freely in a lateral direction between a location corresponding to the linear-side guide member and a location corresponding to the branching-and-joining-side guide member.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: October 7, 2003
    Assignee: Daifuku Co., Ltd.
    Inventor: Kazufumi Matsukawa
  • Publication number: 20020029719
    Abstract: A pair of rail members have upward wheel supporting surfaces and inward roller guide surfaces, respectively. A fixed path includes linear path portions and a branching-and-joining path portion. Linear-side guide members extending along the linear path portions and a branching-and-joining-side guide member extending along the branching-and-joining path portion are provided in a branching-and-joining section. A moving body is provided with wheels and side guide rollers supported and guided on a wheel supporting surface and a roller guide surface, respectively. A direction restricting member guided by sideward guide sections of the guide members is driven by a lateral-movement unit to move freely in a lateral direction between a location corresponding to the linear-side guide member and a location corresponding to the branching-and-joining-side guide member.
    Type: Application
    Filed: August 27, 2001
    Publication date: March 14, 2002
    Applicant: DAIFUKU CO., LTD.
    Inventor: Kazufumi Matsukawa