Patents by Inventor Yoshinobu Nagata

Yoshinobu Nagata 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: 10352220
    Abstract: The exhaust gas stirring device comprises a cylindrical frame on an inner surface of a flow path member forming an exhaust flow path; supporting parts arranged to radially reach across the frame; a shielding part shielding a central axis of the frame and its circumference in the axis direction of the frame. One of the supporting parts comprises a pair of first skeletons extending radially outwardly from the central axis of the frame. The frame and the supporting parts are configured by assembling assembling members. One of the assembling members comprises the pair of first skeletons, and second skeletons respectively extending in an arc shape from one end of each of the first skeletons and constituting a part of the frame. Each of the first skeletons and the second skeletons in the assembling members comprises a vane part formed to protrude respectively from each of the first and second skeletons.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: July 16, 2019
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventor: Yoshinobu Nagata
  • Publication number: 20170191398
    Abstract: The exhaust gas stirring device comprises a cylindrical frame on an inner surface of a flow path member forming an exhaust flow path; supporting parts arranged to radially reach across the frame; a shielding part shielding a central axis of the frame and its circumference in the axis direction of the frame. One of the supporting parts comprises a pair of first skeletons extending radially outwardly from the central axis of the frame. The frame and the supporting parts are configured by assembling assembling members. One of the assembling members comprises the pair of first skeletons, and second skeletons respectively extending in an arc shape from one end of each of the first skeletons and constituting a part of the frame. Each of the first skeletons and the second skeletons in the assembling members comprises a vane part formed to protrude respectively from each of the first and second skeletons.
    Type: Application
    Filed: May 28, 2015
    Publication date: July 6, 2017
    Inventor: Yoshinobu Nagata
  • Patent number: 9683476
    Abstract: An exhaust gas purification device comprises a catalyst disposed to the exhaust-gas flow path, and an inhibiting member that is disposed downstream of the catalyst in the exhaust-gas flow path, and diminishes a bias in flow-rate distribution of exhaust gases that flow into the catalyst by inhibiting a partial flow of the exhaust gases that flowed out of the catalyst, wherein the inhibiting member comprises a concave part comprising a concave shape facing the catalyst, and inhibits, by the concave part, a partial flow of the exhaust gases that flowed out of the catalyst.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: June 20, 2017
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Yoshinobu Nagata, Yasufumi Umeno
  • Patent number: 9498750
    Abstract: Provided is an exhaust treatment device including a cylindrical shell into which an exhaust gas is introduced, and a flow channel pipe that penetrates through the cylindrical shell. One end of the flow channel pipe is connected to an exhaust-gas flow path of an internal combustion engine, and the exhaust gas is introduced into the cylindrical shell via the flow channel pipe. A pair of through holes, in which the flow channel pipe is disposed, are provided in a pipe wall of the cylindrical shell. A lid member configured to occlude one of the through holes is welded to the other end of the flow channel pipe so as to occlude an opening in the other end. The lid member is welded to the pipe wall so that the one of the pair of through holes is occluded by the lid member.
    Type: Grant
    Filed: December 25, 2012
    Date of Patent: November 22, 2016
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Yoshinobu Nagata, Tatsutoshi Osaki
  • Publication number: 20150361853
    Abstract: An exhaust gas purification device comprises a first channel member that forms an exhaust gas flow path leading to a catalyst and a second channel member that forms a reducing agent flow path guiding a reducing agent injected by an injector to the exhaust gas flow path upstream of the catalyst. The second channel member is inserted so as to penetrate a side wall of the first channel member to protrude into the exhaust gas flow path.
    Type: Application
    Filed: December 20, 2013
    Publication date: December 17, 2015
    Inventors: Yoshinobu Nagata, Naoki Matsumoto, Yasufumi Umeno
  • Publication number: 20150361852
    Abstract: An exhaust gas purification device comprises a catalyst disposed to the exhaust-gas flow path, and an inhibiting member that is disposed downstream of the catalyst in the exhaust-gas flow path, and diminishes a bias in flow-rate distribution of exhaust gases that flow into the catalyst by inhibiting a partial flow of the exhaust gases that flowed out of the catalyst, wherein the inhibiting member comprises a concave part comprising a concave shape facing the catalyst, and inhibits, by the concave part, a partial flow of the exhaust gases that flowed out of the catalyst.
    Type: Application
    Filed: November 21, 2013
    Publication date: December 17, 2015
    Applicant: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Yoshinobu Nagata, Yasufumi Umeno
  • Publication number: 20150290585
    Abstract: An exhaust gas purification device includes: a catalyst downstream from an enlarged diameter flow path in an exhaust gas flow path; a diffusing member upstream from the enlarged diameter flow path in the exhaust gas flow path and that causes exhaust gas that has flowed in from upstream to flow out so that said exhaust gas diffuses toward the enlarged diameter flow path; a supply device that supplies a reducing agent upstream from the diffusing member in the exhaust gas flow path; and a guiding member upstream from the diffusing member either at a flow mixing position in the exhaust gas flow path where the reducing agent and the exhaust gas mix or at a position downstream from the flow mixing position, and that splits the flow of the reducing agent that has flowed in from upstream into a plurality of flows and guides said flows toward the diffusing member.
    Type: Application
    Filed: September 13, 2013
    Publication date: October 15, 2015
    Applicant: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Yoshinobu Nagata, Yasufumi Umeno
  • Publication number: 20150226104
    Abstract: An exhaust gas stifling device is to be mounted in a tubular body that forms a flow path for exhaust gas. The device comprises a main body that comprises a plurality of base plates facing one another at specified distances and a plurality of blade portions that are provided on a downstream side of a flow direction of the exhaust gas and are inclined with respect to the flow direction of the exhaust gas. The plurality of blade portions are formed so that there is a route in which vectors X of the individual blade portions, each vector X being defined below, go around in a given direction when viewed from a downstream side of a flow direction D. Vector X: a component of a vector in a direction of the blade portion guiding the exhaust gas, in a plane perpendicular to the flow direction of the exhaust gas.
    Type: Application
    Filed: July 25, 2013
    Publication date: August 13, 2015
    Inventors: Yoshinobu Nagata, Yuki Sakuma
  • Patent number: 9097156
    Abstract: An exhaust gas purifying device includes a cylindrical shell, a flow channel pipe, and a lid member. The pipe is connected to the shell along a radial direction of the shell. The shell is a member that is formed in a cylindrical shape having a pair of open ends, and in which exhaust gases flow. The shell has at least one shell-side fitting groove that is formed at one of the ends, and in which the pipe is fittable. The lid member is a member that closes the one of the pair of ends of the shell, and has at least one lid-side fitting groove that is formed at a position facing the at least one shell-side fitting groove, and in which the pipe is fittable. The at least one shell-side fitting groove and the at least one lid-side fitting groove fit the pipe therein by holding the pipe therebetween.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: August 4, 2015
    Assignee: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Yoshinobu Nagata, Masafumi Wada, Tatsutoshi Osaki
  • Publication number: 20140348715
    Abstract: Provided is an exhaust treatment device including a cylindrical shell into which an exhaust gas is introduced, and a flow channel pipe that penetrates through the cylindrical shell. One end of the flow channel pipe is connected to an exhaust-gas flow path of an internal combustion engine, and the exhaust gas is introduced into the cylindrical shell via the flow channel pipe. A pair of through holes, in which the flow channel pipe is disposed, are provided in a pipe wall of the cylindrical shell. A lid member configured to occlude one of the through holes is welded to the other end of the flow channel pipe so as to occlude an opening in the other end. The lid member is welded to the pipe wall so that the one of the pair of through holes is occluded by the lid member.
    Type: Application
    Filed: December 25, 2012
    Publication date: November 27, 2014
    Applicant: FUTABA INDUSTRIAL CO., LTD
    Inventors: Yoshinobu Nagata, Tatsutoshi Osaki
  • Publication number: 20130333357
    Abstract: An exhaust gas purifying device includes a cylindrical shell, a flow channel pipe, and a lid member. The pipe is connected to the shell along a radial direction of the shell. The shell is a member that is formed in a cylindrical shape having a pair of open ends, and in which exhaust gases flow. The shell has at least one shell-side fitting groove that is formed at one of the ends, and in which the pipe is fittable. The lid member is a member that closes the one of the pair of ends of the shell, and has at least one lid-side fitting groove that is formed at a position facing the at least one shell-side fitting groove, and in which the pipe is fittable. The at least one shell-side fitting groove and the at least one lid-side fitting groove fit the pipe therein by holding the pipe therebetween.
    Type: Application
    Filed: March 1, 2012
    Publication date: December 19, 2013
    Applicant: FUTABA INDUSTRIAL CO., LTD.
    Inventors: Yoshinobu Nagata, Masafumi Wada, Tatsutoshi Osaki
  • Patent number: 5337686
    Abstract: A needle plate structure for a sewing machine is disclosed, which includes a needle plate mounted on a bed extension which can be readily removed and replaced but which also permits adjustment of the alignment and registration of the bed extension and needle plate with respect to the work supporting bed of the sewing machine.
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: August 16, 1994
    Assignee: Juki Corporation
    Inventor: Yoshinobu Nagata