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).
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Publication number: 20230202148Abstract: 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: ApplicationFiled: February 13, 2023Publication date: June 29, 2023Applicant: KURARAY EUROPE GMBHInventors: Hiroyuki ARISHIMA, Koichiro ISOUE, Hirotaka YASUDA, Toshiyuki IGUCHI
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Patent number: 11518145Abstract: 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: GrantFiled: December 27, 2018Date of Patent: December 6, 2022Assignee: KURARAY EUROPE GMBHInventors: Hiroyuki Arishima, Koichiro Isoue, Hirotaka Yasuda
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Patent number: 11504951Abstract: 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: GrantFiled: March 27, 2018Date of Patent: November 22, 2022Assignee: KURARAY EUROPE GMBHInventors: Koichiro Isoue, Hirotaka Yasuda, Jun Koishikawa, Uwe Keller
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Publication number: 20220049080Abstract: 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: ApplicationFiled: September 25, 2019Publication date: February 17, 2022Applicant: KURARAY CO., LTD.Inventors: Takuya KOBAYASHI, Koichiro ISOUE, Hirotaka YASUDA
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Publication number: 20210394493Abstract: 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: ApplicationFiled: September 26, 2019Publication date: December 23, 2021Applicant: KURARAY CO., LTD.Inventors: Yuuki TAKASUKA, Atsushi NAGASAWA, Hirotaka YASUDA, Koichiro ISOUE
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Publication number: 20210394494Abstract: 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: ApplicationFiled: September 25, 2019Publication date: December 23, 2021Applicant: KURARAY CO., LTD.Inventors: Yuhi SHIMAZUMI, Takeshi KUSUDOU, Koichiro ISOUE, Hirotaka YASUDA, Takuya KOBAYASHI
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Publication number: 20210095111Abstract: 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: ApplicationFiled: April 19, 2019Publication date: April 1, 2021Applicant: KURARAY CO., LTD.Inventors: Hiroyuki ARISHIMA, Koichiro ISOUE, Hirotaka YASUDA, Toshiyuki IGUCHI
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Publication number: 20210060901Abstract: 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: ApplicationFiled: December 27, 2018Publication date: March 4, 2021Inventors: Hiroyuki ARISHIMA, Koichiro ISOUE, Hirotaka YASUDA
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Publication number: 20200374987Abstract: 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: ApplicationFiled: December 27, 2018Publication date: November 26, 2020Inventors: Hirotaka YASUDA, Koichiro ISOUE
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Publication number: 20200171795Abstract: 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: ApplicationFiled: July 6, 2018Publication date: June 4, 2020Applicant: KURARAY CO., LTD.Inventors: Koichiro ISOUE, Hirotaka YASUDA
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Publication number: 20200096427Abstract: 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: ApplicationFiled: August 28, 2019Publication date: March 26, 2020Applicant: JTEKT CORPORATIONInventor: Hirotaka YASUDA
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Publication number: 20200023620Abstract: 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: ApplicationFiled: March 27, 2018Publication date: January 23, 2020Applicant: KURARAY CO., LTD.Inventors: Koichiro ISOUE, Hirotaka YASUDA, Jun KOISHIKAWA, Uwe KELLER
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Publication number: 20200017675Abstract: 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: ApplicationFiled: March 27, 2018Publication date: January 16, 2020Applicant: KURARAY CO., LTD.Inventors: Koichiro ISOUE, Jun KOISHIKAWA, Hirotaka YASUDA, Uwe KELLER
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Patent number: 10527091Abstract: 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: GrantFiled: March 28, 2018Date of Patent: January 7, 2020Assignee: JTEKT CORPORATIONInventor: Hirotaka Yasuda
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Publication number: 20180326696Abstract: 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: ApplicationFiled: April 24, 2018Publication date: November 15, 2018Applicant: KURARAY EUROPE GMBHInventors: Shinichi MUGURUMA, Hirotaka YASUDA
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Publication number: 20180291951Abstract: 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: ApplicationFiled: March 28, 2018Publication date: October 11, 2018Applicant: JTEKT CORPORATIONInventor: Hirotaka YASUDA
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Publication number: 20170145173Abstract: 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: ApplicationFiled: June 16, 2015Publication date: May 25, 2017Applicants: MITSUBISHI RAYON CO., LTD., KURARAY CO., LTDInventors: Yosuke MATSUNAGA, Masaaki KIURA, Mitsufumi NODONO, Hirotaka YASUDA, Shinichi MUGURMA
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Patent number: 9587676Abstract: 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: GrantFiled: March 25, 2016Date of Patent: March 7, 2017Assignee: JTEKT CORPORATIONInventor: Hirotaka Yasuda
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Publication number: 20160290393Abstract: 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: ApplicationFiled: March 25, 2016Publication date: October 6, 2016Applicant: JTEKT CORPORATIONInventor: Hirotaka YASUDA
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Patent number: 9382946Abstract: 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: GrantFiled: November 17, 2014Date of Patent: July 5, 2016Assignee: JTEKT CORPORATIONInventors: Hirotaka Yasuda, Ryohei Hosaka