Patents Assigned to URAKAMI LLC
  • Patent number: 10512952
    Abstract: The object of the invention is to provide a device which can, with high efficiency, polish and clean the inner surface of a pipe, dry the wet inner surface of the pipe, and perform coating, wherein the device does not require a large pump or a large motive force, and does not require a blast hose or a suction hose.
    Type: Grant
    Filed: January 27, 2016
    Date of Patent: December 24, 2019
    Assignees: URAKAMI LLC, DAIICHI SERVICE CO., LTD.
    Inventor: Fukashi Urakami
  • Publication number: 20160363160
    Abstract: To provide a simple, lightweight, and low-cost device that is capable of adhering by suction to an object surface and moving therealong. This device is at least formed from a suctioning unit, horizontally reciprocating units, vertically reciprocating units, and double-acting leg members. As a first step for enabling the device to travel along an object surface, the double-acting leg members are strongly pressed against the object surface. As a second step, the suctioning unit is moved in the traveling direction of the device with the double-acting leg members strongly pressed against the object surface. As a third step, the double-acting leg members are separated from the object surface. As a fourth step, with the double-acting leg members separated from the object surface, the double-acting leg members are moved in the traveling direction of the device and returned to the state immediately prior to the first step. Thereafter, the actions of the first to fourth steps are repeated.
    Type: Application
    Filed: December 20, 2014
    Publication date: December 15, 2016
    Applicant: URAKAMI LLC
    Inventor: Fukashi URAKAMI
  • Patent number: 9102369
    Abstract: To improve the traveling functionality of a traveling device equipped with dual, rotating, negative-pressure suction seals.
    Type: Grant
    Filed: January 14, 2012
    Date of Patent: August 11, 2015
    Assignee: URAKAMI LLC
    Inventor: Fukashi Urakami
  • Patent number: 9022159
    Abstract: [OBJECT] To provide a device which is held by vacuum on a wall surface or a window surface of glass of a building, and which is moved along the surface, thereby performing the cleaning operation. [SOLVING MEANS] In three clinging units which are arranged in a row, each of the clinging units includes clinging unit putting forward/backward means for putting the clinging unit in and out in a direction intersecting with the surface. The clinging units adjacent to each other are coupled by transverse expansion and contraction means via the clinging unit putting forward/backward means, so as to constitute a row clinging unit group. In three row clinging unit groups which are arranged in the longitudinal direction, the row clinging unit groups adjacent to each other are coupled by lengthwise expansion and contraction means via the clinging unit putting forward/backward means. Each of the clinging units can be selectively set in one of three states, i.e.
    Type: Grant
    Filed: September 12, 2011
    Date of Patent: May 5, 2015
    Assignees: Urakami LLC, Fujii Denko Co., Ltd.
    Inventor: Fukashi Urakami
  • Patent number: 8794636
    Abstract: A self-sealing flexible seal includes a seal component A and a seal component B, each being hollow ball-like. In the portion of two pole parts of the each seal component, there is one annular opening per pole. The form of two seal components is similar figures, and two seal components are formed from a flexible material. The seal component A is arranged on the outside of the seal component B. The seal component A and the seal component B are arranged by a two-sheet pile, and are arranged in the state where it moreover contacted. Each of the seal component A and the seal component B possesses the slits of N pieces which have similar figures, the form of each slit is the form prolonged from the near side of the annular opening to the near side of another annular opening.
    Type: Grant
    Filed: December 12, 2010
    Date of Patent: August 5, 2014
    Assignee: Urakami LLC
    Inventor: Fukashi Urakami
  • Publication number: 20140014430
    Abstract: To improve the traveling functionality of a traveling device equipped with dual, rotating, negative-pressure suction seals.
    Type: Application
    Filed: January 14, 2012
    Publication date: January 16, 2014
    Applicant: URAKAMI LLC
    Inventor: Fukashi Urakami
  • Publication number: 20120313326
    Abstract: A self-sealing flexible seal includes a seal component A and a seal component B, each being hollow ball-like. In the portion of two pole parts of the each seal component, there is one annular opening per pole. The form of two seal components is similar figures, and two seal components are formed from a flexible material. The seal component A is arranged on the outside of the seal component B. The seal component A and the seal component B are arranged by a two-sheet pile, and are arranged in the state where it moreover contacted.
    Type: Application
    Filed: December 12, 2010
    Publication date: December 13, 2012
    Applicant: Urakami LLC
    Inventor: Fukashi Urakami
  • Publication number: 20120090111
    Abstract: Provided are a method and a device for performing work in pipelines, whereby it is possible to exert an extremely large driving force within a pipeline. Moreover, provided are a method and a device for performing work in pipelines, which are provided with a means for forcibly drying the wet inner surface of a pipeline. The device is provided with an annular pressure boundary seal with a free-end portion that comes into contact with the inner wall of the pipeline. The seal separates the space within the pipeline into two spaces, a space (A) and a space (B), using the seal as a boundary. The end of the space (A) adjacent to the seal is connected with a suction pump via a hose, while the other end of the space (A), which is not adjacent to the seal, is connected with the fluid surrounding the pipeline via a vacuum breaker that adjusts the negative pressure within the space (A).
    Type: Application
    Filed: June 21, 2010
    Publication date: April 19, 2012
    Applicant: URAKAMI LLC
    Inventor: Fukashi Urakami