Patents by Inventor Yusuke Todoroki

Yusuke Todoroki 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: 11118250
    Abstract: Ti, N, Al, Mg, and Ca concentrations are controlled in order to prevent aggregation of TiN inclusions. Furthermore, not only is a Fe—Cr—Ni alloy having superior surface property provided, but also a method is proposed in which the Fe—Cr—Ni alloy is produced at low cost using commonly used equipment. The Fe—Cr—Ni alloy includes C?0.05%, Si: 0.1 to 0.8%, Mn: 0.2 to 0.8%, P?0.03%, S?0.001%, Ni:16 to 35%, Cr: 18 to 25%, Al: 0.2 to 0.4%, Ti: 0.25 to 0.4%, N?0.016%, Mg: 0.0015 to 0.008%, Ca?0.005%, O: 0.0002 to 0.005%, freely selected Mo: 0.5 to 2.5% in mass % and Fe and inevitable impurities as the remainder, wherein Ti and N satisfy % N×% Ti?0.0045 and the number of TiN inclusions not smaller than 5 ?m is 20 to 200 pieces/cm2 at a freely selected cross section.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: September 14, 2021
    Assignee: NIPPON YAKIN KOGYO CO., LTD.
    Inventors: Kenji Mizuno, Hidekazu Todoroki, Yosuke Baba, Yusuke Kobayashi, Waki Nishijima
  • Publication number: 20210277984
    Abstract: A screw device is provided which can detect damage to a groove of a screw shaft, the damage being hidden by a nut, with a high probability. At least two circulation components are mounted on a nut in such a manner as to form at least two circulation circuits that circulate rolling elements. The nut is provided with a sensor that detects a displacement of a groove of a screw shaft between the adjacent circulation circuits.
    Type: Application
    Filed: June 19, 2019
    Publication date: September 9, 2021
    Inventors: Kazuyoshi MOCHIZUKI, Tetsuya MIURA, Ryuji MURAMATSU, Yusuke TODOROKI
  • Publication number: 20210253830
    Abstract: It is an object of the present invention to provide an ultrafine cellulose fiber-containing composition, regarding which an ultrafine cellulose fiber-dispersed organic solvent slurry can exhibit high viscosity and high transparency. The present invention relates to a cellulose fiber-containing composition comprising cellulose fibers with a fiber width of 1000 nm or less having anionic groups, and metal ions, wherein the cellulose fiber-containing composition comprising organic onium ions as counterions of the anionic groups, and when a solid in the cellulose fiber-containing composition is converted to an absolute dry solid, the content of the metal ions in the absolute dry solid is 80 ppm or more and 700 ppm or less.
    Type: Application
    Filed: August 28, 2019
    Publication date: August 19, 2021
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Mengchen ZHAO, Yusuke TODOROKI, Yuichi NOGUCHI
  • Publication number: 20210253744
    Abstract: It is an object of the present invention to provide a fluffed cellulose having totally new properties that have not conventionally existed, and a cellulose fiber-containing material capable of realizing the same. The present invention relates to a cellulose fiber-containing material comprising cellulose fibers having anionic groups, wherein the yield of the cellulose fiber-containing material measured by the following measurement method is 50% by mass or more, the cellulose fiber-containing material has organic onium ions as counterions of the anionic groups, and the organic onium ions satisfy a predetermined condition.
    Type: Application
    Filed: September 5, 2019
    Publication date: August 19, 2021
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Yuichi NOGUCHI, Mengchen ZHAO, Yusuke TODOROKI
  • Publication number: 20200399443
    Abstract: It is an object of the present invention to provide a resin composite comprising ultrafine cellulose fibers, in which deterioration of a resin component is suppressed. The present invention relates to a cellulose fiber-containing resin composition comprising cellulose fibers with a fiber width of 1000 nm or less having phosphoric acid groups or phosphoric acid group-derived substituents, and a resin, wherein the counterions of the phosphoric acid groups or phosphoric acid group-derived substituents are organic onium ions, and the conjugate bases of the organic onium ions have a pKb value of 1.0 or more.
    Type: Application
    Filed: November 16, 2018
    Publication date: December 24, 2020
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Mengchen ZHAO, Yuichi NOGUCHI, Yusuke TODOROKI, Ikue SUGIYAMA, Tomoki WATANABE
  • Publication number: 20200385538
    Abstract: The present invention is intended to provide a resin composition capable of suppressing separation between ultrafine cellulose fibers and a resin, and also capable of forming a film having excellent adhesiveness to a base material. The present invention relates to a method for producing a cellulose fiber-containing film, comprising: mixing cellulose fibers having a fiber width of 1000 nm or less with organic onium; mixing the cellulose fiber mixture obtained in the mixing step, an organic solvent and a resin to obtain a resin composition; and applying the resin composition onto a base material, wherein the cellulose fibers have anionic groups, and the content of the anionic groups is 0.50 mmol/g or more, and the content of the cellulose fibers in the resin composition is 1% by mass or more.
    Type: Application
    Filed: February 20, 2019
    Publication date: December 10, 2020
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Yusuke TODOROKI, Mengchen ZHAO, Yuichi NOGUCHI
  • Publication number: 20200032455
    Abstract: It is an object of the present invention to optimize a bleaching process in a step of producing phosphorylated cellulose fibers. The present invention relates to a pulp comprising cellulose fibers having 0.5 mmol/g or more of phosphoric acid groups or phosphoric acid group-derived substituents, wherein when the pulp is processed into a sheet and four sheets are laminated on one another, the ISO whiteness of the laminate is 82% or more. Moreover, when the pulp of the present invention is processed into a sheet and four sheets are then laminated on one another, the b* value of the obtained laminate according to the L*a*b* color system is 5.5 or less.
    Type: Application
    Filed: September 29, 2017
    Publication date: January 30, 2020
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Mengchen ZHAO, Yuichi NOGUCHI, lkue HOMMA, Yusuke TODOROKI
  • Publication number: 20200002883
    Abstract: It is an object of the present invention to provide ultrafine cellulose fibers capable of exhibiting favorable dispersibility even in an organic solvent. The present invention relates to cellulose fibers having a fiber width of 1000 nm or less and having phosphoric acid groups or phosphoric acid group-derived substituents, wherein the content of the phosphoric acid groups or phosphoric acid group-derived substituents is 0.5 mmol/g or more, and the supernatant yield measured by an measurement method (a) is 70% or less.
    Type: Application
    Filed: March 1, 2018
    Publication date: January 2, 2020
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Mengchen ZHAO, Yusuke TODOROKI, Yuichi NOGUCHI, Ikue SUGIYAMA
  • Publication number: 20190276959
    Abstract: A composition provides a high-bulk cellulose fiber-containing sheet, in which the water-retaining ability of the cellulose fibers is sufficiently high, and the water-absorbing rate is large. The composition contains cellulose fibers having phosphoric acid groups or phosphoric acid group-derived substituents. In at least a part of the cellulose fibers, the phosphoric acid groups or the phosphoric acid group-derived substituents are crosslinked. The number of crosslinking points in the cellulose fibers, which is calculated according to the following Equation (1), is 0.20 mmol/g or more, and the water content is 50% by mass or less, with respect to the total mass of the composition: Number of crosslinking points=(amount of strongly acidic groups contained in cellulose fibers?amount of weakly acidic groups contained in cellulose fibers)/2 . . . Equation (1).
    Type: Application
    Filed: September 29, 2017
    Publication date: September 12, 2019
    Applicant: OJI HOLDINGS CORPORATION
    Inventors: Yusuke TODOROKI, Yuichi NOGUCHI, lkue HOMMA, Mengchen ZHAO
  • Patent number: 8739646
    Abstract: There is provided a roller screw in which a twisted amount of an unloaded return path is reduced. The roller screw has a screw shaft 1 having a spiral roller-rolling surface 1a on an outer peripheral surface thereof; a nut 2 having a spiral loaded roller-rolling surface 2a on an inner peripheral surface thereof, the spiral loaded roller-rolling surface being opposed to the roller-rolling surface 1a of the screw shaft 1; a circulation member 7 arranged in the nut 2 and formed to have an unloaded return path 8 connecting one end and the other end of the loaded roller-rolling surface 2a, whose turn number is less than one, of the nut 2; and a plurality of rollers 4 arranged in a one-turn roller circulation path composed by a loaded roller-rolling path 6 and the unloaded return path 8.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: June 3, 2014
    Assignee: THK Co., Ltd.
    Inventors: Kentaro Nishimura, Tetsuya Miura, Akimasa Yoshida, Soshi Miyahara, Yusuke Todoroki, Takashi Sakuyama
  • Patent number: 8336415
    Abstract: Provided is a roller screw capable of preventing rollers moving from an unloaded return path to a loaded roller rolling path from coming into collision with a scooping portion. The roller screw has: a screw shaft 1 having a spiral roller rolling surface 1a formed on an outer peripheral surface thereof; a nut 2 having a loaded roller rolling surface 2a formed in an inner peripheral surface thereof; a circulation member 3 having an unloaded return path connecting one end of the loaded roller rolling surface 2a of the nut 2 to an opposite end thereof; and a plurality of rollers 4 arranged in a loaded roller rolling path 6 and the unloaded return path.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: December 25, 2012
    Assignee: THK Co., Ltd.
    Inventors: Soshi Miyahara, Masahiko Yoshino, Lina Teng, Tsutomu Togashi, Takashi Sakuyama, Kentaro Nishimura, Tetsuya Miura, Akimasa Yoshida, Yusuke Todoroki
  • Publication number: 20100282011
    Abstract: There is provided a roller screw in which a twisted amount of an unloaded return path is reduced. The roller screw has a screw shaft 1 having a spiral roller-rolling surface is on an outer peripheral surface thereof; a nut 2 having a spiral loaded roller-rolling surface 2a on an inner peripheral surface thereof, the spiral loaded roller-rolling surface being opposed to the roller-rolling surface is of the screw shaft 1; a circulation member 7 arranged in the nut 2 and formed to have an unloaded return path 8 connecting one end and the other end of the loaded roller-rolling surface 2a, whose turn number is less than one, of the nut 2; and a plurality of rollers 4 arranged in a one-turn roller circulation path composed by a loaded roller-rolling path 6 and the unloaded return path 8.
    Type: Application
    Filed: November 14, 2008
    Publication date: November 11, 2010
    Applicant: THK CO., LTD.
    Inventors: Kentaro Nishimura, Tetsuya Miura, Akimasa Yoshida, Soshi Miyahara, Yusuke Todoroki, Takashi Sakuyama
  • Publication number: 20100263467
    Abstract: Provided is a roller screw capable of preventing rollers moving from an unloaded return path to a loaded roller rolling path from coming into collision with a scooping portion. The roller screw has: a screw shaft 1 having a spiral roller rolling surface la formed on an outer peripheral surface thereof; a nut 2 having a loaded roller rolling surface 2a formed in an inner peripheral surface thereof; a circulation member 3 having an unloaded return path connecting one end of the loaded roller rolling surface 2a of the nut 2 to an opposite end thereof; and a plurality of rollers 4 arranged in a loaded roller rolling path 6 and the unloaded return path.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 21, 2010
    Applicant: THK CO., LTD.
    Inventors: Soshi Miyahara, Masahiko Yoshino, Lina Teng, Tsutomu Togashi, Takashi Sakuyama, Kentaro Nishimura, Tetsuya Miura, Akimasa Yoshida, Yusuke Todoroki