Patents by Inventor Yoshihiro Kawahara

Yoshihiro Kawahara 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: 11878552
    Abstract: Provided is a wheel (6a) in which a disk (62) includes a first rib (62a) extending in a radial direction, and protruding out on one side in a direction of a central axis a1. A hub (61) of the wheel (6a) includes a first blade portion (61d1) extending in the radial direction. At least one of a pair of side surfaces of the first rib (62a) is inclined relative to a plane including the central axis a1 of the disk (62), and the first blade portion (61d1) is fixed to the inclined side surface on one side of the central axis a1.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: January 23, 2024
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshihiro Kawahara, Tomoki Murozono, Yasuhiro Toguchi, Nobuyuki Shibutani
  • Patent number: 11718361
    Abstract: To provide a moving device that can be used as a mobility device to transport objects and can be improved in portability. The moving device that is movable with rotation of wheels includes a body unit inflated by injection of fluid and deflated by discharge of the fluid, a support body provided on a predetermined surface of the body unit, and the wheels provided in the support body, wherein the interior of a predetermined portion of the body unit that receives a load from an object contacting the body unit is formed with a drop-stitch structure, and the drop-stitch structure after injection of the fluid has tensile forces in directions approximately perpendicular to the direction of the load applied to the predetermined portion by the object.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: August 8, 2023
    Assignees: MERCARI, INC., THE UNIVERSITY OF TOKYO
    Inventors: Ryosuke Yamamura, Yoshihiro Kawahara, Ryuma Niiyama, Hiroki Sato, Young ah Seong
  • Patent number: 11566350
    Abstract: A reinforcing fiber mat manufacturing apparatus according to the present invention is a reinforcing fiber mat manufacturing apparatus that includes a hitting mechanism (40) that comes into contact with a reinforcing fiber bundle to split the reinforcing fiber bundle into a plurality of pieces, and, disperses the plurality of pieces. The hitting mechanism (40) includes a rotation shaft (41), a pair of rotation plates (42) attached to portions of the rotation shaft (41) apart from each other, and a plurality of hitting pieces (43) arranged to extend in parallel to the rotation shaft (41) between the pair of rotation plates (42). The reinforcing fiber mat manufacturing apparatus according to the present invention is a simple apparatus that reliably hits a reinforcing fiber bundle to split the fiber bundle into thin bundles, and disperses the thin bundles to a wide range without causing air turbulence to manufacture a reinforcing fiber mat having a uniform fiber basis weight.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: January 31, 2023
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Yoshihiro Kawahara, Takashi Ikushima, Yasumoto Noguchi, Tamotsu Suzuki
  • Patent number: 11492731
    Abstract: A method of producing a partially separated fiber bundle wherein, while a fiber bundle includes a plurality of single fibers travels along a lengthwise direction of the fiber bundle, a separator provided with a plurality of projected parts is penetrated into the fiber bundle to create a separation-processed part, and entangled parts, where the single fibers are interlaced, are formed at contact parts with the projected parts in at least one separation-processed part, thereafter the separator is removed from the fiber bundle, and after passing through an entanglement accumulation part including the entangled parts, the separator is penetrated again into the fiber bundle, characterized in that a separation processing time t1 during being penetrated with the separator and a time t2 from being removed with the separator to being penetrated again into the fiber bundle satisfy Equation (1): 0.03?t2/(t1+t2)?0.5.
    Type: Grant
    Filed: December 22, 2020
    Date of Patent: November 8, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Tetsuya Motohashi, Takafumi Hashimoto, Katsuhiro Miyoshi, Yoshihiro Kawahara, Tamotsu Suzuki, Chiasa Sato
  • Publication number: 20220212215
    Abstract: A mixing apparatus includes: a first introduction port that is provided on a further upstream side than a mix acceleration part in a mixer tube and allows introduction of a liquid agent; a second introduction port that is provided on the further upstream side than the mix acceleration part in the mixer tube and allows introduction of a substance for removing the liquid agent; and a piston that is provided on the upstream side of the mixer tube and that opens one of the first introduction port and the second introduction port and closes another of the first introduction port and the second introduction port by stroking in the axis direction of the mixer tube.
    Type: Application
    Filed: January 4, 2022
    Publication date: July 7, 2022
    Inventors: Naoto Ishii, Yoshihiro Kawahara, Satoshi Shinozaki, Tomoyuki Uemura
  • Patent number: 11346024
    Abstract: A base fabric, having a coefficient of variation CV1 (100×standard deviation/average value) of 3.0% or less in a length direction of a weft-direction disintegrated yarn strength and a coefficient of variation CV2 (100×standard deviation/average value) of 4.0 or less in a length direction of a weft-direction disintegrated yarn elongation.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: May 31, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Tamotsu Arichi, Hironori Shinkai, Yoshihiro Kawahara
  • Publication number: 20220126529
    Abstract: The disclosure provides a material layer forming device that can reduce scattering of a raw material blown out from a nozzle to efficiently deposit the raw material on a required portion of a blowout target surface. A fiber layer forming device 1A is a device that blows out short fibers F1 to a blowout target surface (wall surface 4b) and deposits the short fibers F1 on the blowout target surface to form a sheet-like fiber layer F2. The fiber layer forming device 1A includes a nozzle 10 having a blowout region 11c that blows out the short fibers F1. The nozzle 10 further includes a suction region 12c that is close to the blowout region 11c and sucks the short fibers F1 spreading to the outside of the blowout region 11c, among the short fibers F1 blown out from the blowout region 11c.
    Type: Application
    Filed: September 12, 2021
    Publication date: April 28, 2022
    Applicant: Honda Motor Co., Ltd.
    Inventors: Naoto ISHII, Yoshihiro KAWAHARA, Satoshi SHINOZAKI
  • Publication number: 20210393459
    Abstract: Provided is a wheel (6a) in which a disk (62) includes a ring-shaped rim (60) on which a tire (6b) is fitted, and a disk (62) having a flat circular shape and disposed on an inner circumference of the rim (60). The disk (62) includes a first rib (62a) and a second rib (62b) which extend in a radial direction of the disk (62). A width of each of the first rib (62a) and the second rib (62b) in a circumferential direction of the disk (62) increases toward an outer circumferential side of the disk (62).
    Type: Application
    Filed: August 26, 2019
    Publication date: December 23, 2021
    Inventors: Yoshihiro KAWAHARA, Tomoki MUROZONO, Yasuhiro TOGUCHI, Nobuyuki SHIBUTANI
  • Publication number: 20210371039
    Abstract: To provide a moving device that can be used as a mobility device to transport objects and can be improved in portability. The moving device that is movable with rotation of wheels includes a body unit inflated by injection of fluid and deflated by discharge of the fluid, a support body provided on a predetermined surface of the body unit, and the wheels provided in the support body, wherein the interior of a predetermined portion of the body unit that receives a load from an object contacting the body unit is formed with a drop-stitch structure, and the drop-stitch structure after injection of the fluid has tensile forces in directions approximately perpendicular to the direction of the load applied to the predetermined portion by the object.
    Type: Application
    Filed: May 28, 2021
    Publication date: December 2, 2021
    Inventors: Ryosuke YAMAMURA, Yoshihiro KAWAHARA, Ryuma NIIYAMA, Hiroki SATO, Young ah SEONG
  • Publication number: 20210315752
    Abstract: Provided is a wheel (6a) in which a disk (62) includes a first rib (62a) extending in a radial direction, and protruding out on one side in a direction of a central axis a1. A hub (61) of the wheel (6a) includes a first blade portion (61d1) extending in the radial direction. At least one of a pair of side surfaces of the first rib (62a) is inclined relative to a plane including the central axis a1 of the disk (62), and the first blade portion (61d1) is fixed to the inclined side surface on one side of the central axis a1.
    Type: Application
    Filed: June 19, 2019
    Publication date: October 14, 2021
    Inventors: Yoshihiro KAWAHARA, Tomoki MUROZONO, Yasuhiro TOGUCHI, Nobuyuki SHIBUTANI
  • Publication number: 20210108342
    Abstract: A method of producing a partially separated fiber bundle wherein, while a fiber bundle includes a plurality of single fibers travels along a lengthwise direction of the fiber bundle, a separator provided with a plurality of projected parts is penetrated into the fiber bundle to create a separation-processed part, and entangled parts, where the single fibers are interlaced, are formed at contact parts with the projected parts in at least one separation-processed part, thereafter the separator is removed from the fiber bundle, and after passing through an entanglement accumulation part including the entangled parts, the separator is penetrated again into the fiber bundle, characterized in that a separation processing time t1 during being penetrated with the separator and a time t2 from being removed with the separator to being penetrated again into the fiber bundle satisfy Equation (1): 0.03?t2/(t1+t2)?0.5.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Inventors: Tetsuya Motohashi, Takafumi Hashimoto, Katsuhiro Miyoshi, Yoshihiro Kawahara, Tamotsu Suzuki, Chiasa Sato
  • Publication number: 20200354864
    Abstract: A base fabric, having a coefficient of variation CV1 (100×standard deviation/average value) of 3.0% or less in a length direction of a weft-direction disintegrated yarn strength and a coefficient of variation CV2 (100×standard deviation/average value) of 4.0 or less in a length direction of a weft-direction disintegrated yarn elongation.
    Type: Application
    Filed: December 10, 2018
    Publication date: November 12, 2020
    Inventors: Tamotsu Arichi, Hironori Shinkai, Yoshihiro Kawahara
  • Publication number: 20200340146
    Abstract: A reinforcing fiber mat manufacturing apparatus according to the present invention is a reinforcing fiber mat manufacturing apparatus that includes a hitting mechanism (40) that comes into contact with a reinforcing fiber bundle to split the reinforcing fiber bundle into a plurality of pieces, and, disperses the plurality of pieces. The hitting mechanism (40) includes a rotation shaft (41), a pair of rotation plates (42) attached to portions of the rotation shaft (41) apart from each other, and a plurality of hitting pieces (43) arranged to extend in parallel to the rotation shaft (41) between the pair of rotation plates (42). The reinforcing fiber mat manufacturing apparatus according to the present invention is a simple apparatus that reliably hits a reinforcing fiber bundle to split the fiber bundle into thin bundles, and disperses the thin bundles to a wide range without causing air turbulence to manufacture a reinforcing fiber mat having a uniform fiber basis weight.
    Type: Application
    Filed: January 17, 2019
    Publication date: October 29, 2020
    Applicant: Toray Industries, Inc.
    Inventors: Yoshihiro Kawahara, Takashi Ikushima, Yasumoto Noguchi, Tamotsu Suzuki
  • Patent number: 10676311
    Abstract: A method of manufacturing and a device for manufacturing a partial split-fiber fiber bundle and a partial split-fiber fiber bundle obtained are characterized by piercing a fiber splitting means provided with a plurality of protruding parts into a fiber bundle formed from a plurality of single fibers while making the fiber bundle travel along the longitudinal direction thereof and creating a split-fiber processed part, forming entangled parts where single fibers are interlaced at contact parts with the protruding parts in at least one split-fiber processed part, thereafter pulling the fiber splitting means out of the fiber bundle, and after passing through an entanglement accumulation part including the entangled parts, once again piercing the fiber splitting means into the fiber bundle.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: June 9, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Yoshihiro Kawahara, Tamotsu Suzuki, Katsuhiro Miyoshi
  • Patent number: 10569986
    Abstract: A partially separated fiber bundle includes separation-processed sections, each divided into a plurality of bundles of at least three bundles, and not-separation-processed sections, that are alternately formed along the lengthwise direction of a fiber bundle that comprises a plurality of single fibers. The partially separated fiber bundle is characterized in that, at any width-direction cross-section taken along the lengthwise direction thereof, a rate of single fibers contained in a region at which adjacent divided fiber bundles are joined by a not-separation-processed part is 67% or less relative to the total single fibers in the width-direction cross-section.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: February 25, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Tetsuya Motohashi, Takafumi Hashimoto, Yasumoto Noguchi, Yoshihiro Kawahara, Tamotsu Suzuki, Chiasa Sato
  • Publication number: 20190263625
    Abstract: A partially separated fiber bundle includes separation-processed sections, each divided into a plurality of bundles of at least three bundles, and not-separation-processed sections, that are alternately formed along the lengthwise direction of a fiber bundle that comprises a plurality of single fibers. The partially separated fiber bundle is characterized in that, at any width-direction cross-section taken along the lengthwise direction thereof, a rate of single fibers contained in a region at which adjacent divided fiber bundles are joined by a not-separation-processed part is 67% or less relative to the total single fibers in the width-direction cross-section.
    Type: Application
    Filed: June 1, 2017
    Publication date: August 29, 2019
    Inventors: Tetsuya Motohashi, Takafumi Hashimoto, Yasumoto Noguchi, Yoshihiro Kawahara, Tamotsu Suzuki, Chiasa Sato
  • Publication number: 20190161890
    Abstract: A partially separated fiber bundle includes separation-processed sections and not-separation-processed sections that are alternately formed along the lengthwise direction of a fiber bundle that includes a plurality of single fibers, wherein the separation-processed sections include a plurality of separated bundles. The content of the not-separation-processed sections is 3% or more and 50% or less of the partially separated fiber bundle.
    Type: Application
    Filed: June 1, 2017
    Publication date: May 30, 2019
    Inventors: Tetsuya Motohashi, Takafumi Hashimoto, Katsuhiro Miyoshi, Yoshihiro Kawahara, Tamotsu Suzuki, Chiasa Sato
  • Patent number: 10266003
    Abstract: Provided is a wheel which is inexpensive, light, and sufficiently rigid. A wheel 6a includes an annular rim 60 to which a tire 6b is externally fitted, a hub 61 which is arranged at a center portion of the rim 60 and to which an axle is connected, and a disk 62 which is attached with the rim 60 at a periphery portion and which covers one side of the wheel 6a. The disk 62 includes a planar portion 62a and a first rib 62b provided at a surface of one side of the planar portion 62a and extending in the radial direction. The planar portion 62a is provided with a first groove 62d at a surface of the other side at a position corresponding to the first rib 62b.
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: April 23, 2019
    Assignees: HONDA MOTOR CO., LTD., HONDA R&D SUN CO., LTD.
    Inventors: Yoshihiro Kawahara, Yasuhiro Toguchi, Katsutoshi Tada, Ikumi Kurihara, Junji Takado, Norifumi Naono
  • Patent number: 9860097
    Abstract: A transmitting device includes: a compressing unit configured to generate and output a compressed digital signal that has been compressed, by converting an input digital signal by use of a Walsh function and extracting a specific frequency component.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: January 2, 2018
    Assignees: FUJI ELECTRIC CO., LTD., THE UNIVERSITY OF TOKYO
    Inventors: Haruki Kawakami, Tohru Asami, Yoshihiro Kawahara, Masami Kishiro, Takahiro Kudo
  • Publication number: 20170355550
    Abstract: A method of manufacturing and a device for manufacturing a partial split-fiber fiber bundle and a partial split-fiber fiber bundle obtained are characterized by piercing a fiber splitting means provided with a plurality of protruding parts into a fiber bundle formed from a plurality of single fibers while making the fiber bundle travel along the longitudinal direction thereof and creating a split-fiber processed part, forming entangled parts where single fibers are interlaced at contact parts with the protruding parts in at least one split-fiber processed part, thereafter pulling the fiber splitting means out of the fiber bundle, and after passing through an entanglement accumulation part including the entangled parts, once again piercing the fiber splitting means into the fiber bundle.
    Type: Application
    Filed: December 9, 2015
    Publication date: December 14, 2017
    Applicant: Toray Industries, Inc.
    Inventors: Yoshihiro Kawahara, Tamotsu Suzuki, Katsuhiro Miyoshi