Patents by Inventor Youichi Zenda

Youichi Zenda 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: 7524130
    Abstract: A member-joining device with which, when pipe members etc. are fixed to each other, a sufficient fastening force can be obtained even if the members have thin wall thickness. Member-joining device 8 has a first bridge member, a second bridge member and drawing means 6. First bridge member 81 joins first member 5 having a pair of opposing walls 53, 53 and a second member 31 having a pair of opposing walls 311, 311 and is spanned at a predetermined position of the first member between the opposing walls 53, 53. Second bridge member 82 is spanned at a predetermined position of second member 31 between the opposing walls 311, 311. Drawing means 6 draws first bridge member 81 and second bridge member 82 in the direction where both members are closer to each other. Accordingly, first member 5 and second member 31 are pressed and joined to each other by a drawing force of drawing means 6.
    Type: Grant
    Filed: May 19, 2004
    Date of Patent: April 28, 2009
    Assignee: Kokuyo Co., Ltd.
    Inventors: Youichi Zenda, Katsuya Matsuzaki
  • Patent number: 7281774
    Abstract: As an arrangement to reduce an operational force to draw the drawer 3 forward from the drawer storage position 2, wherein at least a rear end side of a drawer 3 is supported in a drawer storage portion 2 in a manner movable along back and forth and a front end 3b side thereof is supported in a manner movable along back and forth by a floor F at least through a rolling supporting body, the rolling supporting body adopts a free motion rotating body 12 whose upper end 12b makes an abutting contact with a downward facing surface 3a of the drawer 3 and whose bottom end 12a contacts the floor F and the free motion rotating body 12 supports the front end 3b side of the drawer 3 with making a rolling movement at a half traveling speed of the drawer 3.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: October 16, 2007
    Assignee: Kokuyo Co., Ltd.
    Inventors: Youichi Zenda, Yoshimasa Kato, Hiromi Iwamuro, Shinya Noguchi
  • Patent number: 7246978
    Abstract: A body comprising a nut retaining apparatus mounted thereon for fastening a bolt to the body. The bolt is inserted into a bolt insertion hole at an end surface of the body from a direction inclined with respect to a direction tangent to the body. The nut retaining apparatus comprises a nut retainer and a nut holder, the nut retainer positioned at an insertion end of the bolt insertion hole in the body and against which a nut member having a threaded hole abuts, and the nut holder mounted on the body for supporting the nut member in the inclined direction. The nut member is retained and supported in the inclined direction at a position between the nut retainer and nut holder and continuous with the bolt insertion hole.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: July 24, 2007
    Assignee: Kokuyo Co., Ltd.
    Inventors: Katsunari Morishima, Youichi Zenda, Tsuyoshi Shimozato
  • Publication number: 20060115324
    Abstract: A member-joining device with which, when pipe members etc. are fixed to each other, a sufficient fastening force can be obtained even if the members have thin wall thickness. Member-joining device 8 has a first bridge member, a second bridge member and drawing means 6. First bridge member 81 joins first member 5 having a pair of opposing walls 53, 53 and a second member 31 having a pair of opposing walls 311, 311 and is spanned at a predetermined position of the first member between the opposing walls 53, 53. Second bridge member 82 is spanned at a predetermined position of second member 31 between the opposing walls 311, 311. Drawing means 6 draws first bridge member 81 and second bridge member 82 in the direction where both members are closer to each other. Accordingly, first member 5 and second member 31 are pressed and joined to each other by a drawing force of drawing means 6.
    Type: Application
    Filed: May 19, 2004
    Publication date: June 1, 2006
    Applicant: Kokuyo Co., Ltd.
    Inventors: Youichi Zenda, Katsuya Matsuzaki
  • Publication number: 20050105984
    Abstract: In a nut retaining apparatus for holding a nut 282 in a connection body 28 in an inclined direction, the nut retaining apparatus comprises a nut retainer 283 which is provided on an insertion end of the bolt insertion hole 28h in the connection body 28, and the nut holder 281 supports the nut 282 and is mounted on the connection body 28, thereby retaining the nut 282 at a position of the nut retainer 283. Thus, it is possible to provide a nut retaining apparatus and a nut holder capable of effectively preventing the producing procedure from being complicated, and preventing the producing cost from being increased.
    Type: Application
    Filed: March 30, 2004
    Publication date: May 19, 2005
    Applicant: Kokuyo Co., Ltd.
    Inventors: Katsunari Morishima, Youichi Zenda, Tsuyoshi Shimozato
  • Publication number: 20050104491
    Abstract: As an arrangement to reduce an operational force to draw the drawer 3 forward from the drawer storage position 2, wherein at least a rear end side of a drawer 3 is supported in a drawer storage portion 2 in a manner movable along back and forth and a front end 3b side thereof is supported in a manner movable along back and forth by a floor F at least through a rolling supporting body, the rolling supporting body adopts a free motion rotating body 12 whose upper end 12b makes an abutting contact with a downward facing surface 3a of the drawer 3 and whose bottom end 12a contacts the floor F and the free motion rotating body 12 supports the front end 3b side of the drawer 3 with making a rolling movement at a half traveling speed of the drawer 3.
    Type: Application
    Filed: March 30, 2004
    Publication date: May 19, 2005
    Applicant: Kokuyo Co., Ltd.
    Inventors: Youichi Zenda, Yoshimasa Kato, Hiromi Iwamuro, Shinya Noguchi