Patents by Inventor Shigeto Murayama

Shigeto Murayama 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: 9061839
    Abstract: Guide rails for an article transport vehicle are provided and include a pair of right and left rail portion which are spaced apart from each other in a rail lateral direction. The guide rails are diverged into a straight forward path, a left diverging path, and a right diverging path at a three-directional diverging portion of the travel paths. The pair of right and left rail portions provided along the straight forward path are spaced apart in the path longitudinal direction from the pair of right and left rail portions provided along the upstream-side travel path of the three-directional diverging portion. In addition, an auxiliary receiving mechanism is provided for receiving and supporting the article transport vehicle traveling between the pair of right and left rail portion of the upstream-side travel path and the pair of right and left rail portions of the straight forward path.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: June 23, 2015
    Assignee: Daifuku Co., Ltd.
    Inventor: Shigeto Murayama
  • Publication number: 20140090954
    Abstract: Guide rails for an article transport vehicle are provided and include a pair of right and left rail portion which are spaced apart from each other in a rail lateral direction. The guide rails are diverged into a straight forward path, a left diverging path, and a right diverging path at a three-directional diverging portion of the travel paths. The pair of right and left rail portions provided along the straight forward path are spaced apart in the path longitudinal direction from the pair of right and left rail portions provided along the upstream-side travel path of the three-directional diverging portion. In addition, an auxiliary receiving mechanism is provided for receiving and supporting the article transport vehicle traveling between the pair of right and left rail portion of the upstream-side travel path and the pair of right and left rail portions of the straight forward path.
    Type: Application
    Filed: December 17, 2012
    Publication date: April 3, 2014
    Applicant: Daifuku Co., Ltd.
    Inventor: Shigeto Murayama
  • Patent number: 7651309
    Abstract: A floating unit comprises: a stationary portion; a movable portion supported to be movable relative to the stationary portion and including an article support; a support disposed between the stationary portion and the movable portion, the support having a plurality of rolling elements rotatably held by a holder between an upwardly facing first contact surface provided on the stationary portion and a downwardly facing second contact surface provided on the movable portion, whereby the support is movable in all horizontal directions relative to the movable portion and the stationary portion; a movable portion returning device for biasing the movable portion relative to the stationary portion toward a reference position for receiving an article; and a support returning device for biasing the support horizontally relative to the stationary portion toward a reference position for holding the movable portion.
    Type: Grant
    Filed: August 11, 2006
    Date of Patent: January 26, 2010
    Assignee: Daifuku Co., Ltd.
    Inventors: Yoshiteru Ikehata, Shigeto Murayama, Takayoshi Ono, Tatsuhisa Tsuji
  • Patent number: 7341187
    Abstract: Article sensor for detecting an article on an article holder has an article detecting portion for detecting the presence or absence of an article and a wireless communication unit capable of wirelessly transmitting detected information from the article detecting portion. The article detecting portion and the wireless communication unit are assembled into a unit.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: March 11, 2008
    Assignee: Daifuku Co., Ltd.
    Inventor: Shigeto Murayama
  • Patent number: 7329299
    Abstract: It is an object of the present invention to provide a plate-shaped work piece transporting apparatus that has a fan, a dust-removal filter disposed above this fan, and a plate-shape porous member disposed above the dust-removal filter. By forming a chamber in which air can accumulate between the porous member and the dust-removal filter, it is possible to suppress air pulsations. Further, by providing support members on the porous member, the plate-shaped work piece can be supported and damage thereto can be avoided when the plate-shaped work piece, which is supported by air from the fan, drops to below a set height.
    Type: Grant
    Filed: July 6, 2004
    Date of Patent: February 12, 2008
    Assignee: Daifuku Co., Ltd.
    Inventors: Susumu Moriya, Shigeto Murayama, Yuichi Morimoto, Yoshiteru Ikehata, Takayoshi Ono
  • Publication number: 20070041813
    Abstract: A floating unit comprises: a stationary portion; a movable portion supported to be movable relative to the stationary portion and including an article support; a support disposed between the stationary portion and the movable portion, the support having a plurality of rolling elements rotatably held by a holder between an upwardly facing first contact surface provided on the stationary portion and a downwardly facing second contact surface provided on the movable portion, whereby the support is movable in all horizontal directions relative to the movable portion and the stationary portion; a movable portion returning device for biasing the movable portion relative to the stationary portion toward a reference position for receiving an article; and a support returning device for biasing the support horizontally relative to the stationary portion toward a reference position for holding the movable portion.
    Type: Application
    Filed: August 11, 2006
    Publication date: February 22, 2007
    Applicant: DAIFUKU CO., LTD.
    Inventors: Yoshiteru Ikehata, Shigeto Murayama, Takayoshi Ono, Tatsuhisa Tsuji
  • Patent number: 7108474
    Abstract: It is an object to provide a plate-shaped work piece transporting apparatus provided with a blowing mechanism for contactlessly supporting a plate-shaped work piece that is transported, where the blowing mechanism is provided with a dust-removal filter and a blowing mechanism for sending air to the lower surface of the plate-shaped work piece via the dust-removal filter. In a first embodiment, a driving mechanism for contacting the plate-shaped work piece and moving it in the transporting direction is provided.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: September 19, 2006
    Assignee: Daifuku Co., Ltd.
    Inventors: Susumu Moriya, Shigeto Murayama, Yuichi Morimoto, Yoshiteru Ikehata, Takayoshi Ohno
  • Publication number: 20060145882
    Abstract: Article sensor for detecting an article on an article holder has an article detecting portion for detecting the presence or absence of an article and a wireless communication unit capable of wirelessly transmitting detected information from the article detecting portion. The article detecting portion and the wireless communication unit are assembled into a unit.
    Type: Application
    Filed: November 30, 2005
    Publication date: July 6, 2006
    Applicant: DAIFUKU CO., LTD.
    Inventor: Shigeto Murayama
  • Publication number: 20050005583
    Abstract: It is an object of the present invention to provide a plate-shaped work piece transporting apparatus that has a fan, a dust-removal filter disposed above this fan, and a plate-shape porous member disposed above the dust-removal filter. By forming a chamber in which air can accumulate between the porous member and the dust-removal filter, it is possible to suppress air pulsations. Further, by providing support members on the porous member, the plate-shaped work piece can be supported and damage thereto can be avoided when the plate-shaped work piece, which is supported by air from the fan, drops to below a set height.
    Type: Application
    Filed: July 6, 2004
    Publication date: January 13, 2005
    Inventors: Susumu Moriya, Shigeto Murayama, Yuichi Morimoto, Yoshiteru Ikehata, Takayoshi Ono
  • Publication number: 20050002743
    Abstract: It is an object to provide a plate-shaped work piece transporting apparatus provided with a blowing mechanism for contactlessly supporting a plate-shaped work piece that is transported, where the blowing mechanism is provided with a dust-removal filter and a blowing mechanism for sending air to the lower surface of the plate-shaped work piece via the dust-removal filter. In a first embodiment, a driving mechanism for contacting the plate-shaped work piece and moving it in the transporting direction is provided.
    Type: Application
    Filed: April 13, 2004
    Publication date: January 6, 2005
    Applicant: DAIFUKU CO., LTD.
    Inventors: Susumu Moriya, Shigeto Murayama, Yuichi Morimoto, Yoshiteru Ikehata, Takayoshi Ohno
  • Patent number: 5467718
    Abstract: A magnetic levitation transport system includes magnetic levitation vehicles each driven by a linear motor to run along a track. Induction lines extend through predetermined blocks of the running track to transmit a high frequency sine-wave current. Each vehicle includes electromagnets to attract levitating magnetic members extending along the running track, a pickup coil resonant with a frequency of the induction lines to generate an electromotive force, and a battery chargeable by the pickup coil. The electromagnets receive power from the pickup coil and/or the battery.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: November 21, 1995
    Assignee: Daifuku Co., Ltd.
    Inventors: Satoru Shibata, Shigeto Murayama