Patents by Inventor Kazushi Tsujimoto

Kazushi Tsujimoto 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: 9592965
    Abstract: A conveying apparatus that increases the conveying speed of a conveyance object, and improves reliability and conveyance efficiency at low cost. Acceleration/deceleration sections, each of which includes a plurality of variable-speed conveyance sections, are provided among constant-speed conveyance sections. The conveying speed of a conveyance object is continuously accelerated or decelerated while the conveyance object passes through the acceleration/deceleration sections. This changes the conveying speed from the conveying speed of the upstream constant-speed conveyance section to the conveying speed of the downstream constant-speed conveyance section. Thus, it is controlled that the conveying speed and the conveyance acceleration/deceleration is identical between the upstream conveyance section and the downstream conveyance section when the conveyance object is transferred from the upstream conveyance section to the downstream conveyance section.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: March 14, 2017
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Shinji Inatomi
  • Publication number: 20160280469
    Abstract: A conveying apparatus that increases the conveying speed of a conveyance object, and improves reliability and conveyance efficiency at low cost. Acceleration/deceleration sections, each of which includes a plurality of variable-speed conveyance sections, are provided among constant-speed conveyance sections. The conveying speed of a conveyance object is continuously accelerated or decelerated while the conveyance object passes through the acceleration/deceleration sections. This changes the conveying speed from the conveying speed of the upstream constant-speed conveyance section to the conveying speed of the downstream constant-speed conveyance section. Thus, it is controlled that the conveying speed and the conveyance acceleration/deceleration is identical between the upstream conveyance section and the downstream conveyance section when the conveyance object is transferred from the upstream conveyance section to the downstream conveyance section.
    Type: Application
    Filed: March 15, 2016
    Publication date: September 29, 2016
    Applicant: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Shinji Inatomi
  • Patent number: 8690509
    Abstract: An article storage facility includes a storage rack that includes a plurality of storage units that store articles; a first article transport that includes a first vertically movable body guided by a first vertical guide and a first transit body configured to move along a path defined along the storage rack, the first vertical guide being provided in the first article transport so as to be positioned on one side of a lateral direction of the path; and a second article transport that includes a second vertically movable body guided by a second vertical guide and a second transit body configured to move along the path, the second vertical guide being provided in the second article transport so as to be positioned on the other lateral side of the path. The first transit body and the second transit body are configured so as to be able to pass each other.
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: April 8, 2014
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Takashi Fujita
  • Patent number: 8607911
    Abstract: A movable rack system able to carry out a widthwise shift control of a movable rack without using a sheet rail member to be detected. The system is so configured, that magnets are placed at stop positions of the movable rack on the floor surface as members to be detected, while the movable rack is equipped with magnetic sensors to detect the magnets. When the movable rack stops traveling, the magnetic sensors detect the magnets and compares the detected magnetic intensity to the magnetic intensity detected at the previous stop. If the change exceeds a pre-determined value, namely the widthwise shift exceeding a pre-determined value is detected, a travel route of the movable rack to eliminate the widthwise shift is determined. In the next travel of the movable rack the rotation speeds of the respective driving motors are controlled so that the movable rack follows the travel route.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: December 17, 2013
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Natsuo Takagawa, Syouji Yokoyama
  • Patent number: 8162585
    Abstract: An article storage facility includes a storage rack that includes a plurality of storage units that store articles; a first article transport that includes a first vertically movable body guided by a first vertical guide and a first transit body configured to move along a path defined along the storage rack, the first vertical guide being provided in the first article transport so as to be positioned on one side of a lateral direction of the path; and a second article transport that includes a second vertically movable body guided by a second vertical guide and a second transit body configured to move along the path, the second vertical guide being provided in the second article transport so as to be positioned on the other lateral side of the path. The first transit body and the second transit body are configured so as to be able to pass each other.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: April 24, 2012
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Takashi Fujita
  • Patent number: 8150546
    Abstract: An article transporting apparatus, according to one preferred embodiment, includes: a plurality of movable bodies for transporting articles, the movable bodies being movable between a plurality of article transfer locations; and an operation controlling section for controlling the plurality of movable bodies so that the movable bodies effect article transporting operations in accordance with an article transport request information; wherein the operation controlling section selects a movable body from the group of movable bodies for an article transporting operation, based on an operation condition configured to cause each of the movable bodies to have a different past operation history such that a timing for replacing a replaceable part for one movable body is different from replacement timings for other movable bodies.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: April 3, 2012
    Assignee: Daifuku Co., Ltd.
    Inventor: Kazushi Tsujimoto
  • Publication number: 20120070255
    Abstract: An article storage facility includes a storage rack that includes a plurality of storage units that store articles; a first article transport that includes a first vertically movable body guided by a first vertical guide and a first transit body configured to move along a path defined along the storage rack, the first vertical guide being provided in the first article transport so as to be positioned on one side of a lateral direction of the path; and a second article transport that includes a second vertically movable body guided by a second vertical guide and a second transit body configured to move along the path, the second vertical guide being provided in the second article transport so as to be positioned on the other lateral side of the path. The first transit body and the second transit body are configured so as to be able to pass each other.
    Type: Application
    Filed: November 23, 2011
    Publication date: March 22, 2012
    Applicant: DAIFUKU CO., LTD
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Takashi Fujita
  • Publication number: 20120006765
    Abstract: A movable rack system able to carry out a widthwise shift control of a movable rack without using a sheet rail member to be detected. The system is so configured, that magnets are placed at stop positions of the movable rack on the floor surface as members to be detected, while the movable rack is equipped with magnetic sensors to detect the magnets. When the movable rack stops traveling, the magnetic sensors detect the magnets and compares the detected magnetic intensity to the magnetic intensity detected at the previous stop. If the change exceeds a pre-determined value, namely the widthwise shift exceeding a pre-determined value is detected, a travel route of the movable rack to eliminate the widthwise shift is determined. In the next travel of the movable rack the rotation speeds of the respective driving motors are controlled so that the movable rack follows the travel route.
    Type: Application
    Filed: March 27, 2009
    Publication date: January 12, 2012
    Applicant: DAIFUKU CO., LTD.
    Inventors: Kazushi Tsujimoto, Natsuo Takagawa, Syouji Yokoyama
  • Patent number: 7787985
    Abstract: In response to a storing command to store a plurality of articles to different storage units of the rack, the control device of article storage facility performs a multiple storing operation wherein the control device controls horizontal movements of the plurality of moving members, vertical movements of the plurality of transfer device provided to each of the plurality of moving members, and transfer operations of the plurality of transfer device in order to cause the plurality of the transfer device: to be at respective storage/retrieval positions; to receive articles from respective article supports; and to move to rack side article transfer positions corresponding to the storage units in which the articles are to be stored and d) to transfer the received articles to the storage units.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: August 31, 2010
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Kunihiro Tsukamoto
  • Patent number: 7693600
    Abstract: An article transporting apparatus, according to one preferred embodiment, includes: a plurality of movable bodies for transporting articles, the movable bodies being movable between a plurality of article transfer locations; and an operation controlling section for controlling the plurality of movable bodies so that the movable bodies effect article transporting operations in accordance with an article transport request information; wherein the operation controlling section selects a movable body from the group of movable bodies for an article transporting operation, based on an operation condition configured to cause each of the movable bodies to have a different past operation history such that a timing for replacing a replaceable part for one movable body is different from replacement timings for other movable bodies.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: April 6, 2010
    Assignee: Daifuku Co., Ltd.
    Inventor: Kazushi Tsujimoto
  • Patent number: 7686559
    Abstract: An article transport facility includes a plurality of mobile bodies movable along a single track for transporting articles, and a control device for controlling movement of the mobile bodies. The control device is capable of executing a joint moving operation for moving the mobile bodies in combination. In this operation, a first mobile body which is one of the mobile bodies pushes a second mobile body which is another of the mobile bodies.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: March 30, 2010
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Kunihiro Tsukamoto
  • Patent number: 7575407
    Abstract: An article storage facility comprising: an article storage rack having a plurality of storage units arranged in horizontal rows and vertical columns; a track extending in the vicinity of the article storage rack; a plurality of article-conveying movable bodies capable of moving horizontally on the track in order to convey an article between the article storage rack and a loading/unloading article support unit; an article transfer device provided to each of the movable bodies that is capable of vertical movement and that transfers the article between a movable body and a storage unit or the article support unit; and a control device for controlling the movements of the movable bodies; wherein the dimensions of the movable bodies are determined so as to enable two of the movable bodies adjacent each other in the horizontal direction to be positioned such that the two article transfer devices, provided to the two adjacent movable bodies, overlap in the vertical direction.
    Type: Grant
    Filed: June 29, 2006
    Date of Patent: August 18, 2009
    Assignee: Daifuku Co., Ltd.
    Inventor: Kazushi Tsujimoto
  • Publication number: 20090188774
    Abstract: An article transporting apparatus, according to one preferred embodiment, includes: a plurality of movable bodies for transporting articles, the movable bodies being movable between a plurality of article transfer locations; and an operation controlling section for controlling the plurality of movable bodies so that the movable bodies effect article transporting operations in accordance with an article transport request information; wherein the operation controlling section selects a movable body from the group of movable bodies for an article transporting operation, based on an operation condition configured to cause each of the movable bodies to have a different past operation history such that a timing for replacing a replaceable part for one movable body is different from replacement timings for other movable bodies.
    Type: Application
    Filed: April 2, 2009
    Publication date: July 30, 2009
    Applicant: DAIFUKU CO., LTD.
    Inventor: Kazushi Tsujimoto
  • Publication number: 20090028675
    Abstract: An article storage facility comprising a storage rack that includes a plurality of storage units that store articles; a first article transport that includes a first vertically movable body guided by a first vertical guide and a first transit body configured to move along a path defined along the storage rack, the first vertical guide being provided in said first article transport so as to be positioned on one side of a lateral direction of the path; and a second article transport that includes a second vertically movable body guided by a second vertical guide and a second transit body configured to move along the path, the second vertical guide being provided in the second article transport so as to be positioned on the other lateral side of the path. The first transit body and said second transit body are configured so as to be able to pass each other.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 29, 2009
    Applicant: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Takashi Fujita
  • Publication number: 20070032903
    Abstract: An article storage facility comprising: an article storage rack having a plurality of storage units arranged in horizontal rows and vertical columns; a track extending in the vicinity of the article storage rack; a plurality of article-conveying movable bodies capable of moving horizontally on the track in order to convey an article between the article storage rack and a loading/unloading article support unit; an article transfer device provided to each of the movable bodies that is capable of vertical movement and that transfers the article between a movable body and a storage unit or the article support unit; and a control device for controlling the movements of the movable bodies; wherein the dimensions of the movable bodies are determined so as to enable two of the movable bodies adjacent each other in the horizontal direction to be positioned such that the two article transfer devices, provided to the two adjacent movable bodies, overlap in the vertical direction.
    Type: Application
    Filed: June 29, 2006
    Publication date: February 8, 2007
    Applicant: DAIFUKU CO., LTD.
    Inventor: Kazushi Tsujimoto
  • Publication number: 20060291992
    Abstract: An article transporting apparatus, according to one preferred embodiment, includes: a plurality of movable bodies for transporting articles, the movable bodies being movable between a plurality of article transfer locations; and an operation controlling section for controlling the plurality of movable bodies so that the movable bodies effect article transporting operations in accordance with an article transport request information; wherein the operation controlling section selects a movable body from the group of movable bodies for an article transporting operation, based on an operation condition configured to cause each of the movable bodies to have a different past operation history such that a timing for replacing a replaceable part for one movable body is different from replacement timings for other movable bodies.
    Type: Application
    Filed: June 12, 2006
    Publication date: December 28, 2006
    Applicant: DAIFUKU CO., LTD.
    Inventor: Kazushi Tsujimoto
  • Publication number: 20060285948
    Abstract: In response to a storing command to store a plurality of articles to different storage units of the rack, the control device of article storage facility performs a multiple storing operation wherein the control device controls horizontal movements of the plurality of moving members, vertical movements of the plurality of transfer device provided to each of the plurality of moving members, and transfer operations of the plurality of transfer device in order to cause the plurality of the transfer device: to be at respective storage/retrieval positions; to receive articles from respective article supports; and to move to rack side article transfer positions corresponding to the storage units in which the articles are to be stored and d) to transfer the received articles to the storage units.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 21, 2006
    Applicant: DAIFUKU CO., LTD.
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Kunihiro Tsukamoto
  • Publication number: 20060276930
    Abstract: An article transport facility includes a plurality of mobile bodies movable along a single track for transporting articles, and a control device for controlling movement of the mobile bodies. The control device is capable of executing a joint moving operation for moving the mobile bodies in combination. In this operation, a first mobile body which is one of the mobile bodies pushes a second mobile body which is another of the mobile bodies.
    Type: Application
    Filed: May 25, 2006
    Publication date: December 7, 2006
    Applicant: DAIFUKU CO., LTD.
    Inventors: Kazushi Tsujimoto, Yuichi Ueda, Kunihiro Tsukamoto
  • Patent number: 5383757
    Abstract: A multi-deck parking structure includes a plurality of decks for storing pallets constructed to carry vehicles, respectively, an entrance section for receiving and delivering vehicles, and a movable unit for moving upward and downward through a vertical shaft extending laterally of the decks into the entrance section, to transport the pallets between the entrance section and the decks. The movable unit has pallet supporting fork assemblies extendible to and retractable from the decks, and footpath floors for allowing a person to walk thereon. The footpath floors are vertically movable relative to the pallet supporting fork assemblies.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: January 24, 1995
    Assignee: Daifuku Co., Ltd.
    Inventors: Shigekazu Takaoka, Kazushi Tsujimoto
  • Patent number: 5340262
    Abstract: An automatic warehousing system which provides for improvement in the operating efficiency of the operator. An operating file has codes formed therein for incoming and outgoing goods. A code signal corresponding to a load and a operation mode signal for operation of the automatic warehousing system which are searched from the file are input to a control unit which controls load entry and delivery operations of a load handling crane. Management of load storing spaces within the rack and goods stored in the spaces is carried out according to these signals. In this way, inventory management is carried out by the control unit. Therefore, the operator can perform entry and delivery setting for the control unit without considering the rack number of the load storing space with respect to the load being handled. The system involves less operational procedure than the prior art arrangement and contributes toward improved operating efficiency.
    Type: Grant
    Filed: January 13, 1992
    Date of Patent: August 23, 1994
    Assignee: Daifuku Co., Ltd.
    Inventors: Kazushi Tsujimoto, Yukihiro Goto, Katsuji Ohnishi