Patents by Inventor Takaaki Maeda

Takaaki Maeda 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: 9878359
    Abstract: [Problem] To provide a bending device with a novel structure capable of efficiently bending a metallic plate without scratching or denting the plate. [Solution] A device (10) for bending a metallic plate (W) mounted on a pair of movable plates (35, 35) by applying pressing force to the metallic plate by an upper die (20) along a central axis (X), wherein against the biasing force of a coil spring (45), the movable plates move with the extension of the metallic plate during bending, and therefore the metallic plate is not scratched. The upper surface of each of the movable plates is a perfect flat surface, and therefore does not dent the metallic plate being subjected to the pressing force by the upper die.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: January 30, 2018
    Assignee: TOKYO SEIMITSU HATSUJO CO., LTD.
    Inventor: Takaaki Maeda
  • Publication number: 20170259316
    Abstract: A metal plate bending device, including a lower die having a main body including a pair of arc-shaped cross-sectional recesses formed on an upper surface in a symmetric design with respect to a center line, and swingable members swingably received in said recesses respectively. An upper die is arranged above said lower die movably along said center line relative to said lower die, wherein said upper die is moved toward a metal plate mounted on said lower die causing a press-push force to said metal plate to, causing said swingable members to swing and bend said metal plate along said center line. A movable plate is slideably in planar contact with a flat upper surface of the swingable members and is a flat supporting surface. During bending, said movable plate is slideable with respect to said swingable member, and is moved together with said metal plate.
    Type: Application
    Filed: May 25, 2017
    Publication date: September 14, 2017
    Inventor: Takaaki Maeda
  • Publication number: 20160121382
    Abstract: [Problem] To provide a bending device with a novel structure capable of efficiently bending a metallic plate without scratching or denting the plate. [Solution] A device (10) for bending a metallic plate (W) mounted on a pair of movable plates (35, 35) by applying pressing force to the metallic plate by an upper die (20) along a central axis (X), wherein against the biasing force of a coil spring (45), the movable plates move with the extension of the metallic plate during bending, and therefore the metallic plate is not scratched. The upper surface of each of the movable plates is a perfect flat surface, and therefore does not dent the metallic plate being subjected to the pressing force by the upper die.
    Type: Application
    Filed: March 3, 2015
    Publication date: May 5, 2016
    Applicant: TOKYO SEIMITSU HATSUJO CO., LTD.
    Inventor: Takaaki MAEDA
  • Patent number: 9061856
    Abstract: In the control of a cutting mechanism of a sheet processing apparatus, when rear end cut region of a sheet is finely cut and divided into predetermined fine-cutting unit length, if sheet conveying direction length of rearmost end divided region is equal to or more than minimum reference length corresponding to the distance between cutting position of the cutting mechanism and nipping position of a pair of first conveying rollers and is less than maximum reference length in which predetermined fine-cutting unit length is added to minimum reference length, upper and lower blades of the cutting mechanism are held opened immediately after the downstream edge of rearmost end divided region is cut and the pair of first conveying rollers are driven at limited conveying speed lower than normal conveying speed.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: June 23, 2015
    Assignee: DUPLO SEIKO CORPORATION
    Inventors: Takaaki Maeda, Akihiko Toki, Satoshi Ota, Shuhei Kosaka, Masasuke Funase
  • Publication number: 20140011654
    Abstract: In the control of a cutting mechanism of a sheet processing apparatus, when rear end cut region of a sheet is finely cut and divided into predetermined fine-cutting unit length, if sheet conveying direction length of rearmost end divided region is equal to or more than minimum reference length corresponding to the distance between cutting position of the cutting mechanism and nipping position of a pair of first conveying rollers and is less than maximum reference length in which predetermined fine-cutting unit length is added to minimum reference length, upper and lower blades of the cutting mechanism are held opened immediately after the downstream edge of rearmost end divided region is cut and the pair of first conveying rollers are driven at limited conveying speed lower than normal conveying speed.
    Type: Application
    Filed: February 15, 2012
    Publication date: January 9, 2014
    Applicant: Duplo Seiko Corporation
    Inventors: Takaaki Maeda, Akihiko Toki, Satoshi Ota, Shuhei Kosaka, Masasuke Funase
  • Patent number: 8353509
    Abstract: A stacker device includes a conveying belt, a longitudinal receiving guide, a paper sheet discharge detecting part, a first detecting part having a rod body, a second detecting part, and a control part for controlling the guide drive mechanism and the belt drive mechanism. The control part is formed so as to control both the mechanisms so that after the predetermined time T, which is required for the paper sheet to be stacked on the stacking surface after the paper sheet discharge detecting part detects the rear edge of the paper sheet having been conveyed to the discharging roller, passes and until the first detecting part detects the paper sheet, the longitudinal receiving guide and the conveying belt move to the upstream side of the conveyance direction at the same time, and after that, until the first detecting part does not detect the paper sheet, the longitudinal receiving guide and the conveying belt move to the downstream side of the conveyance direction at the same time.
    Type: Grant
    Filed: February 15, 2010
    Date of Patent: January 15, 2013
    Assignee: Duplo Seiko Corporation
    Inventors: Ryuichi Oota, Hideki Oiwa, Masasuke Funase, Takaaki Maeda
  • Patent number: 8322713
    Abstract: When the sheet (100) is mounted onto the conveyance surface (20), the alignment guide (3) is located at the retraction position by the alignment guide moving mechanism, and after the sheet (100) is mounted onto the conveyance surface (20), the alignment guide (3) is located at the guide position by the alignment guide moving mechanism.
    Type: Grant
    Filed: April 5, 2010
    Date of Patent: December 4, 2012
    Assignee: Duplo Seiko Corporation
    Inventors: Ryuichi Oota, Hideki Oiwa, Masasuke Funase, Takaaki Maeda, Akihiko Toki
  • Patent number: 8273004
    Abstract: A paper folding mechanism includes: first and second folding rollers (51, 52); first and second conveyance rollers (61, 62); a protrusion member (71); and a control part. Both the rollers (51, 52) are provided so that a paper is sandwiched therebetween with its fold line located in front, and is allowed to pass therethrough in a first direction. The first folding roller (51) and the first conveyance roller (61) are provided so that the paper is sandwiched therebetween and conveyed in a second direction orthogonal to the first direction. The second folding roller (52) and the second conveyance roller (62) are provided so that the paper is sandwiched therebetween and conveyed in any one of the second direction and the direction opposite thereto. The protrusion member (71) is provided so that the fold line of the paper conveyed by both the rollers (61, 62) is protruded in the first direction and fed between both the rollers (51, 52).
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: September 25, 2012
    Assignee: Duplo Seiko Corporation
    Inventors: Ryuichi Oota, Hideki Oiwa, Masasuke Funase, Takaaki Maeda
  • Patent number: 8270803
    Abstract: A reproducing operation of still image content and a reproducing operation of moving image content are carried out by similar inputs by a user. A video recording and reproducing processing unit reproduces video content, and a Web content processing unit automatically selects instructions, such as information for instructing another Web page to be displayed next, from data of a reproduced Web page, and reproduces the another Web page. As a result, a plurality of Web pages are continuously reproduced and output at predetermined time intervals. A main control unit controls the reproduction of video content by the video recording and reproducing processing unit and the continuous reproduction of Web content by the Web content processing unit based on signals input by operations to a single group of operating keys as interpreted by an input conversion table.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: September 18, 2012
    Assignee: Sony Corporation
    Inventors: Hidetoshi Ichioka, Takaaki Maeda, Mutsumi Kogawa, Shinichi Wakai, Hitoshi Kimura
  • Patent number: 8157261
    Abstract: A paper sheet conveying device is equipped with a conveying path (2) formed of conveying roller pairs and a controlling section conveying rollers. The conveying path (2) is composed of a first-half conveying path (2A) and a last-half conveying path (2B). The first-half conveying path (2A) has a first-half driving mechanism for controlling the rotational speed of the lower conveying rollers and a first-half vertically moving mechanism for vertically moving the upper conveying rollers. The last-half conveying path (2B) has a last-half driving mechanism for controlling the rotational speed of the lower conveying rollers and a last-half vertically moving mechanism for vertically moving the upper conveying rollers. The controlling section is configured so as to control the first-half driving mechanism, the first-half vertically moving mechanism, the last-half driving mechanism and the last-half vertically moving mechanism depending on the position of the paper sheet being conveyed.
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: April 17, 2012
    Assignee: Duplo Seiko Corporation
    Inventors: Ryuichi Oota, Hideki Oiwa, Masasuke Funase, Takaaki Maeda
  • Publication number: 20120049443
    Abstract: When the sheet (100) is mounted onto the conveyance surface (20), the alignment guide (3) is located at the retraction position by the alignment guide moving mechanism, and after the sheet (100) is mounted onto the conveyance surface (20), the alignment guide (3) is located at the guide position by the alignment guide moving mechanism.
    Type: Application
    Filed: April 5, 2010
    Publication date: March 1, 2012
    Applicant: Duplo Seiko Corporation
    Inventors: Ryuichi Oota, Hideki Oiwa, Masasuke Funase, Takaaki Maeda, Akihiko Toki
  • Publication number: 20120007306
    Abstract: A stacker device includes a conveying belt, a longitudinal receiving guide, a paper sheet discharge detecting part, a first detecting part having a rod body, a second detecting part, and a control part for controlling the guide drive mechanism and the belt drive mechanism. The control part is formed so as to control both the mechanisms so that after the predetermined time T, which is required for the paper sheet to be stacked on the stacking surface after the paper sheet discharge detecting part detects the rear edge of the paper sheet having been conveyed to the discharging roller, passes and until the first detecting part detects the paper sheet, the longitudinal receiving guide and the conveying belt move to the upstream side of the conveyance direction at the same time, and after that, until the first detecting part does not detect the paper sheet, the longitudinal receiving guide and the conveying belt move to the downstream side of the conveyance direction at the same time.
    Type: Application
    Filed: February 15, 2010
    Publication date: January 12, 2012
    Applicant: DUPLO SEIKO CORPORATION
    Inventors: Ryuichi Oota, Hideki Oiwa, Masasuke Funase, Takaaki Maeda
  • Publication number: 20110074091
    Abstract: A paper sheet conveying device is equipped with a conveying path (2) formed of a large number of conveying roller pairs and a controlling section for detecting the position of the paper sheet being conveyed and controlling the operation of the conveying rollers. The conveying path (2) is composed of a first-half conveying path (2A) and a last-half conveying path (2B). The first-half conveying path (2A) has a first-half driving mechanism for controlling the rotational speed of the lower conveying rollers and a first-half vertically moving mechanism for vertically moving the upper conveying rollers. The last-half conveying path (2B) has a last-half driving mechanism for controlling the rotational speed of the lower conveying rollers and a last-half vertically moving mechanism for vertically moving the upper conveying rollers.
    Type: Application
    Filed: March 3, 2009
    Publication date: March 31, 2011
    Applicant: Duplo Seiko Corporation
    Inventors: Ryuichi Oota, HIdeki Oiwa, Masasuke Funase, Takaaki Maeda
  • Publication number: 20100222195
    Abstract: A paper folding mechanism includes: first and second folding rollers (51, 52); first and second conveyance rollers (61, 62); a protrusion member (71); and a control part. Both the rollers (51, 52) are provided so that a paper is sandwiched therebetween with its fold line located in front, and is allowed to pass therethrough in a first direction. The first folding roller (51) and the first conveyance roller (61) are provided so that the paper is sandwiched therebetween and conveyed in a second direction orthogonal to the first direction. The second folding roller (52) and the second conveyance roller (62) are provided so that the paper is sandwiched therebetween and conveyed in any one of the second direction and the direction opposite thereto. The protrusion member (71) is provided so that the fold line of the paper conveyed by both the rollers (61, 62) is protruded in the first direction and fed between both the rollers (51, 52).
    Type: Application
    Filed: February 26, 2009
    Publication date: September 2, 2010
    Applicant: DUPLO SEIKO CORPORATION
    Inventors: Ryuichi Oota, Hideki Oiwa, Masasuke Funase, Takaaki Maeda
  • Publication number: 20050180728
    Abstract: A reproducing operation of still image content and a reproducing operation of moving image content are carried out by similar inputs by a user. A video recording and reproducing processing unit reproduces video content, and a Web content processing unit automatically selects instructions, such as information for instructing another Web page to be displayed next, from data of a reproduced Web page, and reproduces the another Web page. As a result, a plurality of Web pages are continuously reproduced and output at predetermined time intervals. A main control unit controls the reproduction of video content by the video recording and reproducing processing unit and the continuous reproduction of Web content by the Web content processing unit based on signals input by operations to a single group of operating keys as interpreted by an input conversion table.
    Type: Application
    Filed: December 23, 2004
    Publication date: August 18, 2005
    Applicant: Sony Corporation
    Inventors: Hidetoshi Ichioka, Takaaki Maeda, Mutsumi Kogawa, Shinichi Wakai, Hitoshi Kimura