Patents by Inventor Hirotaka Yasuda

Hirotaka Yasuda 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).

  • Publication number: 20230202148
    Abstract: A polyvinyl acetal resin film, having an average surface roughness Rz of at least one surface of 3.0 ?m or less; a birefringence ?n of 3.0×10?4 or less; and an average thickness of 200 ?m or less.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 29, 2023
    Applicant: KURARAY EUROPE GMBH
    Inventors: Hiroyuki ARISHIMA, Koichiro ISOUE, Hirotaka YASUDA, Toshiyuki IGUCHI
  • Patent number: 11518145
    Abstract: A laminate comprising a base material film, a resin layer (1) having a detachable surface, and a heat-generating conductive layer in this order.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: December 6, 2022
    Assignee: KURARAY EUROPE GMBH
    Inventors: Hiroyuki Arishima, Koichiro Isoue, Hirotaka Yasuda
  • Patent number: 11504951
    Abstract: A polyvinyl acetal resin film for laminated glass, a viscosity of toluene/ethanol=1/1 (by mass ratio) solution of a polyvinyl acetal resin in a resin composition constituting the polyvinyl acetal resin film with a concentration of 10% by mass, measured at 30 rpm and 20° C. by using a Brookfield-type (B-type) viscometer, being more than 200 mPa·s, the polyvinyl acetal resin film comprising a plasticizer in an amount of 0 to 20% by mass based on a total mass of the resin composition constituting the polyvinyl acetal resin film, and the polyvinyl acetal resin film having a thickness of 10 to 350 ?m.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: November 22, 2022
    Assignee: KURARAY EUROPE GMBH
    Inventors: Koichiro Isoue, Hirotaka Yasuda, Jun Koishikawa, Uwe Keller
  • Publication number: 20220049080
    Abstract: The present invention relates to a polyvinyl acetal resin film, comprising a polyvinyl acetal resin material, wherein at least one surface has a relative diffuse reflectance of 3% or higher at a wavelength of 550 nm, an absolute difference between the relative diffuse reflectance of one surface at a wavelength of 550 nm and that of the other surface at a wavelength of 550 nm is 0.5% or larger, and the amount of a plasticizer in the polyvinyl acetal resin film is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.
    Type: Application
    Filed: September 25, 2019
    Publication date: February 17, 2022
    Applicant: KURARAY CO., LTD.
    Inventors: Takuya KOBAYASHI, Koichiro ISOUE, Hirotaka YASUDA
  • Publication number: 20210394493
    Abstract: An intermediate laminate having a first adhesive layer and a first cross-linked cured resin layer laminated directly with no other layer interposed therebetween, the first adhesive layer having a polyvinyl acetal resin and/or an ionomer resin.
    Type: Application
    Filed: September 26, 2019
    Publication date: December 23, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Yuuki TAKASUKA, Atsushi NAGASAWA, Hirotaka YASUDA, Koichiro ISOUE
  • Publication number: 20210394494
    Abstract: The present invention relates to a polyvinyl acetal resin film, comprising a polyvinyl acetal resin material, wherein the polyvinyl acetal resin film has a thickness of 10 to 350 ?m, one surface has a 10-point average roughness Rz value of less than 2 ?m and a friction angle of larger than 31° but 40° or smaller, the other surface has a 10-point average roughness Rz value of 2 ?m to 7 ?m and a friction angle of 20° to 31°, a viscosity of a toluene/ethanol (1:1, mass ratio) solution containing 10%-by-mass of a polyvinyl acetal resin contained in the polyvinyl acetal resin material, which is measured at 20° C. and 30 rpm using a Brookfield-type (B-type) viscometer, is 100 to 1,000 mPa·s, and the amount of a plasticizer in the polyvinyl acetal resin film is 0 to 20% by mass based on a total mass of the polyvinyl acetal resin film.
    Type: Application
    Filed: September 25, 2019
    Publication date: December 23, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Yuhi SHIMAZUMI, Takeshi KUSUDOU, Koichiro ISOUE, Hirotaka YASUDA, Takuya KOBAYASHI
  • Publication number: 20210095111
    Abstract: A polyvinyl acetal resin film, having an average surface roughness Rz of at least one surface of 3.0 ?m or less; a birefringence ?n of 3.0×10?4 or less; and an average thickness of 200 ?m or less.
    Type: Application
    Filed: April 19, 2019
    Publication date: April 1, 2021
    Applicant: KURARAY CO., LTD.
    Inventors: Hiroyuki ARISHIMA, Koichiro ISOUE, Hirotaka YASUDA, Toshiyuki IGUCHI
  • Publication number: 20210060901
    Abstract: A laminate comprising a base material film, a resin layer (1) having a detachable surface, and a heat-generating conductive layer in this order.
    Type: Application
    Filed: December 27, 2018
    Publication date: March 4, 2021
    Inventors: Hiroyuki ARISHIMA, Koichiro ISOUE, Hirotaka YASUDA
  • Publication number: 20200374987
    Abstract: To provide a composite film which comprises a heat-generating conductive structure and is suitable for a laminated glass that can achieve both of the heating of the whole area of the laminated glass and the efficient heating of a region surrounding an electronic member (e.g., a camera, a sensor, an antenna) while keeping the good sensitivity of the electronic member. A composite film comprising: a resin film; and a heat-generating conductive structure arranged on the resin film and comprising at least a plurality of main conductive fine wires, wherein the composite film has at least one electronic member attachment region not comprising the plurality of main conductive fine wires.
    Type: Application
    Filed: December 27, 2018
    Publication date: November 26, 2020
    Inventors: Hirotaka YASUDA, Koichiro ISOUE
  • Publication number: 20200171795
    Abstract: The present invention relates to a production method of a conductive structure-containing film with a substrate film, the production method comprising: a step (1) of forming a resin layer (X) by coating a thermoplastic resin composition (A) containing at least one thermoplastic resin selected from the group consisting of a polyvinyl acetal resin, an ionomer resin, and an ethylene-vinyl acetate copolymer resin on one side of a substrate film; and a step (2) of forming a conductive structure on the resin layer (X).
    Type: Application
    Filed: July 6, 2018
    Publication date: June 4, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Koichiro ISOUE, Hirotaka YASUDA
  • Publication number: 20200096427
    Abstract: A grease property measurement device includes a flow pipe having a first end that communicates with an inside of a rolling bearing such that grease discharged from the rolling bearing flows through the flow pipe; a reservoir unit including an inlet port to which a second end of the flow pipe is connected such that the grease is introduced from the flow pipe through the inlet port, a reservoir chamber which stores the grease introduced through the inlet port, and a discharge port through which the grease is discharged from the reservoir chamber; an extrusion mechanism configured to push the grease in the reservoir chamber so as to discharge the grease through the discharge port; and a measuring unit configured to measure flow resistance at a time when the extrusion mechanism pushes the grease in the reservoir chamber.
    Type: Application
    Filed: August 28, 2019
    Publication date: March 26, 2020
    Applicant: JTEKT CORPORATION
    Inventor: Hirotaka YASUDA
  • Publication number: 20200023620
    Abstract: A polyvinyl acetal resin film for laminated glass, a viscosity of toluene/ethanol=1/1 (by mass ratio) solution of a polyvinyl acetal resin in a resin composition constituting the polyvinyl acetal resin film with a concentration of 10% by mass, measured at 30 rpm and 20° C. by using a Brookfield-type (B-type) viscometer, being more than 200 mPa·s, the polyvinyl acetal resin film comprising a plasticizer in an amount of 0 to 20% by mass based on a total mass of the resin composition constituting the polyvinyl acetal resin film, and the polyvinyl acetal resin film having a thickness of 10 to 350 ?m.
    Type: Application
    Filed: March 27, 2018
    Publication date: January 23, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Koichiro ISOUE, Hirotaka YASUDA, Jun KOISHIKAWA, Uwe KELLER
  • Publication number: 20200017675
    Abstract: A polyvinyl acetal resin film for laminated glass, a viscosity of toluene/ethanol=1/1 (by mass ratio) solution of a polyvinyl acetal resin in a resin composition constituting the polyvinyl acetal resin film with a concentration of 10% by mass, measured at 30 rpm and 20° C. by using a Brookfield-type (B-type) viscometer, being 100 to 1000 mPa·s, the polyvinyl acetal resin film comprising a plasticizer in an amount of 0 to 20% by mass based on a total mass of the resin composition constituting the polyvinyl acetal resin film, the polyvinyl acetal resin film having a thickness of 10 to 350 ?m, the polyvinyl acetal resin film exhibiting a mean spacing Sm value of unevenness of at least one side of 500 ?m or more, and a ratio Sm/Rz of the mean spacing Sm value of unevenness to a value of ten-point average roughness Rz of at least one side of 200 or more.
    Type: Application
    Filed: March 27, 2018
    Publication date: January 16, 2020
    Applicant: KURARAY CO., LTD.
    Inventors: Koichiro ISOUE, Jun KOISHIKAWA, Hirotaka YASUDA, Uwe KELLER
  • Patent number: 10527091
    Abstract: In a self-aligning roller bearing, in a longitudinal section including a center line of a spherical roller and an axis of the self-aligning roller bearing, a clearance X between an outer end surface of a spherical roller on an axially outer side of the self-aligning roller bearing and a rib portion, and a clearance Y between an inner end surface of the spherical roller on an axially inner side of the self-aligning roller bearing and a guide ring have a relation of X<Y.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: January 7, 2020
    Assignee: JTEKT CORPORATION
    Inventor: Hirotaka Yasuda
  • Publication number: 20180326696
    Abstract: An interlayer film with a transparent and a non-transparent region is constructed by providing a non-transparent region of two outer layers of a first mixture of a plasticizer and a polyvinylacetal, and one inner layer of a second mixture of a plasticizer and a polyvinylacetal, and a transparent region of one layer of a third mixture of a plasticizer and a polyvinylacetal, wherein the first and the third mixtures have a transmission for light of 380 to 780 nm of at least 85%, and the second mixture has a transmission for light of 380 to 780 nm of less than 80%, and wherein at least the non-transparent region is provided with a surface roughness with a ratio of Rz/Rv of 1.6 to 2.5 as measured according to EN ISO 4287.
    Type: Application
    Filed: April 24, 2018
    Publication date: November 15, 2018
    Applicant: KURARAY EUROPE GMBH
    Inventors: Shinichi MUGURUMA, Hirotaka YASUDA
  • Publication number: 20180291951
    Abstract: In a self-aligning roller bearing, in a longitudinal section including a center line of a spherical roller and an axis of the self-aligning roller bearing, a clearance X between an outer end surface of a spherical roller on an axially outer side of the self-aligning roller bearing and a rib portion, and a clearance Y between an inner end surface of the spherical roller on an axially inner side of the self-aligning roller bearing and a guide ring have a relation of X<Y.
    Type: Application
    Filed: March 28, 2018
    Publication date: October 11, 2018
    Applicant: JTEKT CORPORATION
    Inventor: Hirotaka YASUDA
  • Publication number: 20170145173
    Abstract: An object of the present invention is to provide a film having excellent transparency, corrosion resistance, adhesive properties, and economic property. Another object of the present invention is to provide a rubber-containing graft polymer powder to be contained in the film. Provided is a film comprising: a resin composition comprising polyvinyl acetal and a rubber-containing graft polymer powder having a refractive index of 1.469 to 1.519; 0 to 100 ppm of calcium ions; and 1 to 1100 ppm of alkali metal ions and alkali earth metal ions in total.
    Type: Application
    Filed: June 16, 2015
    Publication date: May 25, 2017
    Applicants: MITSUBISHI RAYON CO., LTD., KURARAY CO., LTD
    Inventors: Yosuke MATSUNAGA, Masaaki KIURA, Mitsufumi NODONO, Hirotaka YASUDA, Shinichi MUGURMA
  • Patent number: 9587676
    Abstract: A self-aligning roller bearing includes an outer ring, an inner ring, spherical rollers, a cage having a plurality of pockets that contain the spherical rollers, and a guide ring. Each spherical roller may be rotated on an imaginary line passing through a contact point at which the spherical roller contacts an outer raceway surface and a contact point at which the spherical roller contacts an inner raceway surface. Each pocket has a clearance between the pocket and a corresponding spherical roller, and the size of the pocket is set so that the rotation of the corresponding spherical roller is limited. The guide ring has such a side-surface shape that a small clearance is ensured between the spherical roller and the guide ring even when the spherical roller is rotated, in the pocket, on the imaginary line by a maximum amount at which the rotation of the spherical roller is limited.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: March 7, 2017
    Assignee: JTEKT CORPORATION
    Inventor: Hirotaka Yasuda
  • Publication number: 20160290393
    Abstract: A self-aligning roller bearing includes an outer ring, an inner ring, spherical rollers, a cage having a plurality of pockets that contain the spherical rollers, and a guide ring. Each spherical roller may be rotated on an imaginary line passing through a contact point at which the spherical roller contacts an outer raceway surface and a contact point at which the spherical roller contacts an inner raceway surface. Each pocket has a clearance between the pocket and a corresponding spherical roller, and the size of the pocket is set so that the rotation of the corresponding spherical roller is limited. The guide ring has such a side-surface shape that a small clearance is ensured between the spherical roller and the guide ring even when the spherical roller is rotated, in the pocket, on the imaginary line by a maximum amount at which the rotation of the spherical roller is limited.
    Type: Application
    Filed: March 25, 2016
    Publication date: October 6, 2016
    Applicant: JTEKT CORPORATION
    Inventor: Hirotaka YASUDA
  • Patent number: 9382946
    Abstract: A split cage includes a plurality of cage segments each having a pair of rim portions and a pair of cage bar portions, the cage bar portions and the rim portions defining a single pocket that accommodates a single tapered roller. Turning of each of the cage segments is guided by the tapered roller, the cage segments being arranged in a circular pattern along the circumferential direction of the split cage, in an annular space between inner and outer rings. Each cage segment has projections formed so as to project radially inward and formed at the rim portions. A projecting length of each projection is set to such a length that the projection is brought into contact with an outer peripheral side portion of the inner ring when the cage segment starts rotating.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: July 5, 2016
    Assignee: JTEKT CORPORATION
    Inventors: Hirotaka Yasuda, Ryohei Hosaka