Patents by Inventor Tamotsu Suzuki

Tamotsu Suzuki 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: 20210336300
    Abstract: A rechargeable battery state determination method determines whether a rechargeable battery is in a micro-short-circuit-prone state, which is a state that is highly likely to form a micro-short circuit.
    Type: Application
    Filed: April 23, 2021
    Publication date: October 28, 2021
    Applicant: PRIMEARTH EV ENERGY CO., LTD.
    Inventors: Tamotsu FUKUMA, Hitoshi SUZUKI, Daisuke KOBA
  • Publication number: 20210291405
    Abstract: A method is described for producing a prepreg formed by applying a matrix resin to a reinforcing fiber sheet, wherein the method can effect continuous running without clogging due to generated fuzz even at a high running speed and effect efficient impregnation of the reinforcing fiber sheet with a matrix resin. A method of producing a prepreg includes allowing a reinforcing fiber sheet to pass substantially vertically downward through the inside of a coating section storing a matrix resin to obtain a matrix resin-impregnated reinforcing fiber sheet in which the matrix resin is applied to the reinforcing fiber sheet and at least heating the matrix resin-impregnated reinforcing fiber sheet, wherein the coating section includes a liquid pool and a narrowed section which are in communication with each other, wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber sheet.
    Type: Application
    Filed: August 20, 2019
    Publication date: September 23, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Takashi Ochi, Yoshikazu Kono, So Nishino, Junichi Aoki, Kiyoshi Minoura, Tamotsu Suzuki
  • Publication number: 20210292496
    Abstract: A method of producing a prepreg is described, in which a matrix resin is applied to a reinforcing fiber sheet in which the sheet can continuously run without clogging due to generated fuzz even at a high running speed and where the reinforcing fiber sheet can be efficiently impregnated with the matrix resin. A method of producing a prepreg includes allowing a reinforcing fiber sheet to pass substantially vertically downward through the inside of a coating section storing a matrix resin to apply the matrix resin to the reinforcing fiber sheet; and then applying a resin film to a primary impregnate prepreg withdrawn from the coating section.
    Type: Application
    Filed: August 20, 2019
    Publication date: September 23, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Takashi Ochi, So Nishino, Junichi Aoki, Yoshikazu Kono, Tamotsu Suzuki, Takashi Ikushima
  • Patent number: 11110622
    Abstract: A device for manufacturing a chopped fiber bundle includes a cutter roll provided with one or more disk blades on a circumference of a roll core having a center axis coinciding with a rotation axis of the roll core and a nip roll provided in parallel with the rotation axis of the roll core, to feed a reinforcing fiber yarn to be continuously cut between the nip roll and the cutter roll, further including a rotary drive mechanism that rotates the cutter roll and at least one of: a reciprocating drive mechanism that reciprocates the cutter roll along the rotation axis of the roll core; and a traverse guide that traverses the reinforcing fiber yarn along the rotation axis of the roll core.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: September 7, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Yasumoto Noguchi, Tamotsu Suzuki
  • Patent number: 11097448
    Abstract: A fiber-reinforced resin molding material containing at least bundled aggregates [A] of discontinuous reinforcing fibers and a matrix resin [M], wherein each of the bundled aggregates [A] is obtained by cutting a partially-separated fiber bundle, prepared by forming separation treatment sections separated into a plurality of bundles and non-separation treatment sections alternately along a lengthwise direction of a fiber bundle including a plurality of single fibers, at an angle ? (0°<?<90°) with respect to the lengthwise direction of the fiber bundle.
    Type: Grant
    Filed: February 23, 2017
    Date of Patent: August 24, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Tetsuya Motohashi, Takafumi Hashimoto, Katsuhiro Miyoshi, Tamotsu Suzuki, Yasumoto Noguchi
  • Publication number: 20210213649
    Abstract: The present invention is a method of producing a coating liquid-impregnated reinforcing fiber fabric 1b, including allowing a reinforcing fiber fabric 1a to pass substantially vertically downward through the inside of a coating section 20 storing a coating liquid 2 to provide the reinforcing fiber fabric 1a with the coating liquid 2; wherein the coating section 20 includes a liquid pool and a narrowed section which are in communication with each other; wherein the liquid pool has a portion whose cross-sectional area decreases continuously along a running direction of the reinforcing fiber fabric 1a, wherein the narrowed section has a slit-like cross-section and has a smaller cross-sectional area than the top side of the liquid pool, and wherein the vertical height of the portion whose cross-sectional area decreases continuously in the liquid pool is 10 mm or more.
    Type: Application
    Filed: May 23, 2019
    Publication date: July 15, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Takashi Ochi, So Nishino, Tamotsu Suzuki, Junichi Aoki
  • 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: 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: 10651477
    Abstract: A porous carbon electrode substrate hardly causes a short circuit when used in a fuel cell, and from which carbon fibers protruding from the substrate surface, carbon fibers that protrude from the substrate surface when the porous carbon electrode substrate is pressurized in a direction perpendicular to a surface thereof, and short carbon fibers that are insufficiently bonded at the substrate surface have been sufficiently removed. The porous carbon electrode substrate includes short carbon fibers and carbonized resin bonding the short carbon fibers, the porous carbon electrode substrate having an average short circuit current value measured at a first surface of 10 mA or less.
    Type: Grant
    Filed: March 22, 2016
    Date of Patent: May 12, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Mikio Inoue, Takayuki Oda, Tamotsu Suzuki
  • Patent number: 10625477
    Abstract: A reinforcing fiber sheet manufacturing apparatus configured to place a reinforcing fiber bundle on a table includes a fiber bundle supply mechanism configured to feed the reinforcing fiber bundle and equipped with a fiber bundle pressing portion that is configured to press the reinforcing fiber bundle against the table; and a cutting blade located independently of the fiber bundle supply mechanism and configured to cut the reinforcing fiber bundle that is pressed by the fiber bundle pressing portion.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: April 21, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Haruhiko Tsuji, Tamotsu Suzuki, Yasumoto Noguchi, Yasuhiro Sato
  • Patent number: 10626112
    Abstract: The present invention provides a compound represented by the formula (I): wherein each symbol is as defined in the DESCRIPTION, or a pharmaceutically acceptable salt thereof. The compound has a superior TRPA1 antagonist activity, and can provide a medicament useful for the prophylaxis or treatment of diseases involving TRPA1 antagonist and TRPA1.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: April 21, 2020
    Assignee: EA PHARMA CO., LTD.
    Inventors: Kaori Kobayashi, Tamotsu Suzuki, Tomohiro Fujii, Tatsuya Okuzumi
  • Patent number: 10584116
    Abstract: Compounds of represented by formula (I): wherein each symbol is defined herein and pharmaceutically acceptable salts thereof exhibit TRPA1 antagonist activity and are useful as TRPA1 antagonists and the prophylaxis or treatment of diseases involving TRPA1.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: March 10, 2020
    Assignee: EA Pharma Co., Ltd.
    Inventors: Kaori Kobayashi, Tamotsu Suzuki, Tatsuya Okuzumi
  • 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: 20200039114
    Abstract: The present invention relates to a method of producing a coating liquid impregnated sheet-like reinforcing fiber bundle formed by applying a coating liquid to a sheet-like reinforcing fiber bundle that is unidirectionally arranged continuous reinforcing fibers long in one direction. The present invention provides a production method and a coating device of a coating liquid impregnated sheet-like reinforcing fiber bundle, wherein the method and device can effect continuous running without clogging of generated fuzz even at a high running speed and effect efficient impregnation of a coating liquid into the sheet-like reinforcing fiber bundle.
    Type: Application
    Filed: February 22, 2018
    Publication date: February 6, 2020
    Applicant: Toray Industries, Inc.
    Inventors: Takashi Ochi, So Nishino, Tamotsu Suzuki, Junichi Aoki
  • 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
  • Publication number: 20190084186
    Abstract: A fiber-reinforced resin molding material containing at least bundled aggregates [A] of discontinuous reinforcing fibers and a matrix resin [M], wherein each of the bundled aggregates [A] is obtained by cutting a partially-separated fiber bundle, prepared by forming separation treatment sections separated into a plurality of bundles and non-separation treatment sections alternately along a lengthwise direction of a fiber bundle including a plurality of single fibers, at an angle ? (0°<?<90°) with respect to the lengthwise direction of the fiber bundle.
    Type: Application
    Filed: February 23, 2017
    Publication date: March 21, 2019
    Inventors: Tetsuya Motohashi, Takafumi Hashimoto, Katsuhiro Miyoshi, Tamotsu Suzuki, Yasumoto Noguchi
  • Publication number: 20190023699
    Abstract: Compounds of represented by formula (I): wherein each symbol is defined herein and pharmaceutically acceptable salts thereof exhibit TRPA1 antagonist activity and are useful as TRPA1 antagonists and the prophylaxis or treatment of diseases involving TRPA1.
    Type: Application
    Filed: August 3, 2018
    Publication date: January 24, 2019
    Applicant: EA Pharma Co., Ltd.
    Inventors: Kaori KOBAYASHI, Tamotsu SUZUKI, Tatsuya OKUZUMI
  • Publication number: 20180186020
    Abstract: A device for manufacturing a chopped fiber bundle includes a cutter roll provided with one or more disk blades on a circumference of a roll core having a center axis coinciding with a rotation axis of the roll core and a nip roll provided in parallel with the rotation axis of the roll core, to feed a reinforcing fiber yarn to be continuously cut between the nip roll and the cutter roll, further including a rotary drive mechanism that rotates the cutter roll and at least one of: a reciprocating drive mechanism that reciprocates the cutter roll along the rotation axis of the roll core; and a traverse guide that traverses the reinforcing fiber yarn along the rotation axis of the roll core.
    Type: Application
    Filed: June 10, 2016
    Publication date: July 5, 2018
    Applicant: Toray Industries, Inc.
    Inventors: Yasumoto Noguchi, Tamotsu Suzuki