Patents by Inventor Jiro Onuki

Jiro Onuki 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: 11547958
    Abstract: A dispersing device includes: a casing having a liquid inlet; a rotating body accommodated in the casing and pivotably attached to a rotating shaft from one end of the rotating body; a liquid channel having, on the other end of the rotating body, a passage through which the liquid from the liquid inlet passes, and, inside the rotating body, a segment extended radially around the rotating shaft toward an outer side perpendicular to the rotating shaft and from the other end of the rotating body toward the one end of the rotating body in a direction of the rotating shaft axis and in which a cross section shape perpendicular to the rotating shaft is annular; and one connecting hole in the rotating body connecting the liquid channel with the exterior of the rotating body downstream of the liquid channel.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: January 10, 2023
    Inventors: Jiro Onuki, Yasuhiro Mitsuhashi, Shogo Hatsuzawa
  • Publication number: 20190366239
    Abstract: A dispersing device includes: a casing having a liquid inlet; a rotating body accommodated in the casing and pivotably attached to a rotating shaft from one end of the rotating body; a liquid channel having, on the other end of the rotating body, a passage through which the liquid from the liquid inlet passes, and , inside the rotating body, a segment extended radially around the rotating shaft toward an outer side perpendicular to the rotating shaft and from the other end of the rotating body toward the one end of the rotating body in a direction of the rotating shaft axis and in which a cross section shape perpendicular to the rotating shaft is annular; and one connecting hole in the rotating body connecting the liquid channel with the exterior of the rotating body downstream of the liquid channel.
    Type: Application
    Filed: December 25, 2017
    Publication date: December 5, 2019
    Inventors: Jiro ONUKI, Yasuhiro MITSUHASHI, Shogo HATSUZAWA
  • Patent number: 9895697
    Abstract: [Problem] To resolve segregation of grinding media to thereby enable a large-flow-rate circulation operation while reducing wear of an agitating member and a grinding media separating member.
    Type: Grant
    Filed: December 19, 2013
    Date of Patent: February 20, 2018
    Assignee: ASHIZAWA FINETECH LTD.
    Inventors: Jiro Onuki, Yoshinori Ueno, Hiroyuki Ito
  • Publication number: 20160114332
    Abstract: [Problem] To resolve segregation of grinding media to thereby enable a large-flow-rate circulation operation while reducing wear of an agitating member and a grinding media separating member.
    Type: Application
    Filed: December 19, 2013
    Publication date: April 28, 2016
    Inventors: Jiro ONUKI, Yoshinori UENO, Hiroyuki ITO
  • Patent number: 7588205
    Abstract: The object of the present invention is to provide a medium agitation mill which is responsive to the standstill of the mill for preventing the pulverizing medium from invading the inside space of the longitudinal hollow space of the drive shaft of the impeller. In the medium agitation mill the medium separating impeller is arranged in the inside space of the agitating member, and the impeller has a plurality of vanes circumferentially arranged at intervals, and is driven by the hollow drive shaft, one end of which opens to the inside of the impeller to provide the raw material discharging port. The discharging port is provided with an on-off valve of a resilient material to open and close the discharging port.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: September 15, 2009
    Assignee: Ashizawa Finetech Ltd.
    Inventors: Tsuyoshi Ishikawa, Jiro Onuki, Yasuhiro Mitsuhashi, Kaori Harigai
  • Publication number: 20080245910
    Abstract: The object of the present invention is to provide a medium agitation mill which is responsive to the standstill of the mill for preventing the pulverizing medium from invading the inside space of the longitudinal hollow space of the drive shaft of the impeller. In the medium agitation mill the medium separating impeller is arranged in the inside space of the agitating member, and the impeller has a plurality of vanes circumferentially arranged at intervals, and is driven by the hollow drive shaft, one end of which opens to the inside of the impeller to provide the raw material discharging port. The discharging port is provided with an on-off valve of a resilient material to open and close the discharging port.
    Type: Application
    Filed: November 23, 2007
    Publication date: October 9, 2008
    Inventors: Tsuyoshi Ishikawa, Jiro Onuki, Yasuhiro Mitsuhashi, Kaori Harigai