Patents by Inventor Hiroki Imai

Hiroki Imai 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: 20250043936
    Abstract: A light source module includes a substrate having an upper surface; a light source disposed on the upper surface of the substrate; and an optical member including a plurality of light controllers and disposed above the substrate with the light source interposed therebetween. The light source includes a plurality of first light emitting parts and a plurality of second light emitting parts. The plurality of light controllers include a first light controller and a plurality of second light controllers. The first light controller overlaps one or more of the plurality of first light emitting parts in a top view. Each of the plurality of second light controllers overlaps a corresponding one of the plurality of second light emitting parts in the top view.
    Type: Application
    Filed: July 31, 2024
    Publication date: February 6, 2025
    Applicant: NICHIA CORPORATION
    Inventors: Masahiro IMAI, Hiroki SANO
  • Publication number: 20250041563
    Abstract: A catheter shaft includes a shaft main body having a multi-lumen structure, and at least one reinforcement layer embedded in the shaft main body. When, during a tensile test of pulling a test piece obtained from the catheter shaft under test conditions of a 30-mm distance between chucks and a tensile speed of 300 mm/min, a percentage of change amount in a minimum outer diameter of the test piece after pulling to the minimum outer diameter before pulling at a predetermined position of the test piece is defined as a diameter reduction percentage (%), and a percentage of change amount in an axial-direction dimension of the catheter shaft after pulling to the axial-direction dimension before pulling is defined as an elongation percentage (%), the diameter reduction percentage is 5% or greater when the elongation percentage reaches 100% without breakage of the test piece in the tensile test.
    Type: Application
    Filed: May 15, 2024
    Publication date: February 6, 2025
    Inventors: Hiroki KAMIYAMA, Atsuto KIMURA, Tsubasa IMAI
  • Patent number: 12085143
    Abstract: A V-ribbed belt in which a friction transmission surface of a compression rubber layer is coated with a knit fabric is provided. The compression rubber layer is formed of the cured product of a rubber composition containing an ethylene-?-olefin elastomer and carbon black wherein the carbon black contains a soft carbon having a primary particle diameter of at least 40 nm and a hard carbon having a primary particle diameter of less than 40 nm. The ratio between the number of particles of the soft carbon and hard carbon is former/latter=3/97 to 25/75.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: September 10, 2024
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Hiroki Takechi, Hiroki Imai, Manabu Mitsutomi
  • Patent number: 11906016
    Abstract: In a V-ribbed belt provided with a compressed rubber layer having V-ribbed portions extending parallel to one another in a belt longitudinal direction, and having a friction transmission surface at least a portion of which is capable of coming into contact with a V-ribbed groove portion of a pulley, the friction transmission surface of the compressed rubber layer is formed from a rubber composition vulcanizate including a rubber component and a sound generation resistance improving agent. A difference between a radius of curvature of a rib distal end portion of the pulley and a radius of curvature of a rib bottom portion of the belt is adjusted to be ?0.08-0.08 mm. The radius of curvature of the rib bottom portion may be approximately 0.1-0.5 mm. The radius of curvature difference may be ?0.05-0.05 mm. The pulley may include a pulley having an outer diameter at most equal to 65 mm.
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: February 20, 2024
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Hiroki Imai, Yuji Maruyama, Arata Hasegawa
  • Patent number: 11837975
    Abstract: A piezoelectric material includes: an oxide containing Na, Ba, Nb, Ti, and Mn, in which the oxide has a perovskite-type structure, a total amount of metal elements other than Na, Ba, Nb, Ti, and Mn contained in the piezoelectric material is 0.5 mol % or less with respect to a total amount of Na, Ba, Nb, Ti, and Mn, a molar ratio x of Ti to a total molar amount of Nb and Ti is 0.05?x?0.12, a molar ratio y of Na to Nb is 0.93?y?0.98, a molar ratio z of Ba to Ti is 1.09?z?1.60, a molar ratio m of Mn to the total molar amount of Nb and Ti is 0.0006?m?0.0030, and 1.07?y×z?1.50 is satisfied.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: December 5, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Makoto Kubota, Kanako Oshima, Hisato Yabuta, Takanori Matsuda, Miki Ueda, Fumio Uchida, Hiroki Imai, Kenji Maeda, Chiemi Shimizu
  • Patent number: 11668371
    Abstract: A V-ribbed belt has a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another. The V-ribbed belt includes a compression rubber layer including a frictional power transmission face at least a part of which is configured to come in contact with a V-rib groove portion of pulleys. The frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver. A V-rib angle of the V-rib portions is larger than a V-rib groove angle of the pulleys by 5° to 9°.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: June 6, 2023
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Yasutsugu Kunihiro, Hiroki Imai, Yuji Maruyama, Arata Hasegawa, Yorifumi Hineno
  • Publication number: 20230104666
    Abstract: The problem of the present invention is to provide a patch preparation superior in the skin permeability of drugs and having good adhesive property. The present invention relates to a patch preparation containing a drug (excluding tandospirone and a pharmaceutically acceptable salt thereof), levulinic acid, and propylene glycol fatty acid ester in the adhesive layer, which is superior in the practical adhesive property and skin permeability of drugs.
    Type: Application
    Filed: February 18, 2021
    Publication date: April 6, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Kaiji FUJIWARA, Hiroki IMAI, Tomoya TANAKA, Masato NISHIMURA
  • Patent number: 11509244
    Abstract: A lead-free piezoelectric material includes perovskite-type metal oxide containing Na, Nb, Ba, Ti, and Mg and indicates excellent piezoelectric properties. The piezoelectric material satisfies the following relational expression (1): 0.430?a?0.460, 0.433?b?0.479, 0.040?c?0.070, 0.0125?d?0.0650, 0.0015?e?0.0092, 0.9×3e?c?d?1.1×3e, a+b+c+d+e=1, where a, b, c, d, and e denote the relative numbers of Na, Nb, Ba, Ti, and Mg atoms, respectively.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: November 22, 2022
    Assignees: CANON KABUSHIKI KAISHA, FUJI CHEMICAL CO., LTD.
    Inventors: Takanori Matsuda, Makoto Kubota, Hisato Yabuta, Miki Ueda, Kanako Oshima, Fumio Uchida, Hiroki Imai, Kenji Maeda, Chiemi Shimizu
  • Patent number: 11489462
    Abstract: Provided is a lead-free piezoelectric material reduced in dielectric loss tangent, and achieving both a large piezoelectric constant and a large mechanical quality factor. A piezoelectric material according to at least one embodiment of the present disclosure is a piezoelectric material including a main component formed of a perovskite-type metal oxide represented by the general formula (1): Nax+s(1?y)(BiwBa1?s?w)1?yNbyTi1?yO3 (where 0.84?x?0.92, 0.84?y?0.92, 0.002?(w+s)(1?y)?0.035, and 0.9?w/s?1.1), and a Mn component, wherein the content of the Mn is 0.01 mol % or more and 1.00 mol % or less with respect to the perovskite-type metal oxide.
    Type: Grant
    Filed: January 29, 2020
    Date of Patent: November 1, 2022
    Assignees: CANON KABUSHIKI KAISHA, FUJI CHEMICAL CO., LTD.
    Inventors: Kanako Oshima, Miki Ueda, Takanori Matsuda, Makoto Kubota, Hisato Yabuta, Fumio Uchida, Hiroki Imai, Kenji Maeda, Chiemi Shimizu
  • Patent number: 11273619
    Abstract: A molded resin product includes a design layer including a decorative layer having a first color, a shielding layer having a second color different from the first color, and a resin base layer. A cover layer formed of a polymer film is disposed close to one end of the design layer. Part of the decorative layer exposed from the shielding layer serves as an exposed region. The exposed region and part of the shielding layer constitute a pattern portion presenting a predetermined figure or character when viewed in plan through the cover layer. The rest of the shielding layer constitutes a base portion. The layer thickness of the base portion is set smaller than the layer thickness of the pattern portion in a region thereof where the shielding layer is formed.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 15, 2022
    Assignees: HONDA MOTOR CO., LTD., Continental Automotive GmbH, SUNARROW LTD
    Inventors: Seonghun Lee, Ryo Gohara, YoungJin Hyun, Takezo Takahata, Hiroki Imai, Tomoomi Kiyomiya
  • Publication number: 20210231192
    Abstract: A V-ribbed belt includes a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another, and a compression rubber layer including a frictional power transmission face at least a part of which can come into contact with a V-rib groove portion of a pulley. The frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver. A difference (Rp?Rb) between a curvature radius Rp of a rib top end of the pulley and a curvature radius Rb of a rib bottom portion of the V-ribbed belt is ?0.08 to 0.08 mm.
    Type: Application
    Filed: April 25, 2019
    Publication date: July 29, 2021
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hiroki Imai, Yuji Maruyama, Arata Hasegawa
  • Publication number: 20210003194
    Abstract: The present invention relates to a V-ribbed belt in which a friction transmission surface of a compression rubber layer is coated with a knit fabric. The compression rubber layer is formed of the cured product of a rubber composition containing an ethylene-?-olefin elastomer and carbon black wherein the carbon black contains a soft carbon having a primary particle diameter of at least 40 nm and a hard carbon having a primary particle diameter of less than 40 nm. The ratio between the number of particles of the soft carbon and hard carbon is former/latter=3/97 to 25/75.
    Type: Application
    Filed: February 14, 2019
    Publication date: January 7, 2021
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Hiroki Takechi, Hiroki Imai, Manabu Mitsutomi
  • Publication number: 20200316902
    Abstract: A molded resin product includes a design layer including a decorative layer having a first color, a shielding layer having a second color different from the first color, and a resin base layer. A cover layer formed of a polymer film is disposed close to one end of the design layer. Part of the decorative layer exposed from the shielding layer serves as an exposed region. The exposed region and part of the shielding layer constitute a pattern portion presenting a predetermined figure or character when viewed in plan through the cover layer. The rest of the shielding layer constitutes a base portion. The layer thickness of the base portion is set smaller than the layer thickness of the pattern portion in a region thereof where the shielding layer is formed.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 8, 2020
    Inventors: Seonghun Lee, Ryo Gohara, YoungJin Hyun, Takezo Takahata, Hiroki Imai, Tomoomi Kiyomiya
  • Publication number: 20200169191
    Abstract: A piezoelectric material includes: an oxide containing Na, Ba, Nb, Ti, and Mn, in which the oxide has a perovskite-type structure, a total amount of metal elements other than Na, Ba, Nb, Ti, and Mn contained in the piezoelectric material is 0.5 mol % or less with respect to a total amount of Na, Ba, Nb, Ti, and Mn, a molar ratio x of Ti to a total molar amount of Nb and Ti is 0.05?x?0.12, a molar ratio y of Na to Nb is 0.93?y?0.98, a molar ratio z of Ba to Ti is 1.09?z?1.60, a molar ratio m of Mn to the total molar amount of Nb and Ti is 0.0006?m?0.0030, and 1.07?y×z?1.50 is satisfied.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Inventors: Makoto Kubota, Kanako Oshima, Hisato Yabuta, Takanori Matsuda, Miki Ueda, Fumio Uchida, Hiroki Imai, Kenji Maeda, Chiemi Shimizu
  • Publication number: 20200169190
    Abstract: Provided is a lead-free piezoelectric material reduced in dielectric loss tangent, and achieving both a large piezoelectric constant and a large mechanical quality factor. A piezoelectric material according to at least one embodiment of the present disclosure is a piezoelectric material including a main component formed of a perovskite-type metal oxide represented by the general formula (1): Nax+s(1?y)(BiwBa1?s?w)1?yNbyTi1?yO3 (where 0.84?x?0.92, 0.84?y?0.92, 0.002?(w+s)(1?y)?0.035, and 0.9?w/s?1.1), and a Mn component, wherein the content of the Mn is 0.01 mol % or more and 1.00 mol % or less with respect to the perovskite-type metal oxide.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Inventors: Kanako Oshima, Miki Ueda, Takanori Matsuda, Makoto Kubota, Hisato Yabuta, Fumio Uchida, Hiroki Imai, Kenji Maeda, Chiemi Shimizu
  • Publication number: 20200169192
    Abstract: A lead-free piezoelectric material includes perovskite-type metal oxide containing Na, Nb, Ba, Ti, and Mg and indicates excellent piezoelectric properties. The piezoelectric material satisfies the following relational expression (1): 0.430?a?0.460, 0.433?b?0.479, 0.040?c?0.070, 0.0125?d?0.0650, 0.0015?e?0.0092, 0.9×3e?c?d?1.1×3e, a+b+c+d+e=1, where a, b, c, d, and e denote the relative numbers of Na, Nb, Ba, Ti, and Mg atoms, respectively.
    Type: Application
    Filed: January 29, 2020
    Publication date: May 28, 2020
    Inventors: Takanori Matsuda, Makoto Kubota, Hisato Yabuta, Miki Ueda, Kanako Oshima, Fumio Uchida, Hiroki Imai, Kenji Maeda, Chiemi Shimizu
  • Patent number: 10508712
    Abstract: The present invention relates to a frictional power transmission belt containing a compression layer having a power transmission surface, at least a part of which is capable of coming into contact with a pulley, in which the compression layer contains a polymer component and a polyvinyl alcohol-based resin.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: December 17, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Yuji Kamba, Hiroki Imai
  • Patent number: 10502281
    Abstract: The present invention relates to a frictional power transmission belt containing an extensible layer to form a belt back surface, a compressive layer formed on one surface of the extensible layer and having a power transmission surface at least a part of which can be in contact with pulleys, and a tension member embedded between the extensible layer and the compressive layer along a belt length direction, in which at least the compressive layer is formed of a rubber composition containing a polymer component, short fibers and a surfactant and in which the short fibers contain at least short fibers of water-absorbing fibers.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 10, 2019
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Hisato Ishiguro, Yorifumi Hineno, Masashi Tamura, Hiroki Imai
  • Publication number: 20190219134
    Abstract: A V-ribbed belt has a plurality of V-rib portions extending along a longitudinal direction of the belt and in parallel with one another. The V-ribbed belt includes a compression rubber layer including a frictional power transmission face at least a part of which is configured to come in contact with a V-rib groove portion of pulleys. The frictional power transmission face of the compression rubber layer is formed from a vulcanizate of a rubber composition containing a rubber component and a noise suppression improver. A V-rib angle of the V-rib portions is larger than a V-rib groove angle of the pulleys by 5° to 9°.
    Type: Application
    Filed: August 25, 2017
    Publication date: July 18, 2019
    Applicant: Mitsuboshi Belting Ltd.
    Inventors: Yasutsugu Kunihiro, Hiroki Imai, Yuji Maruyama, Arata Hasegawa, Yorifumi Hineno
  • Patent number: 10249428
    Abstract: A reactor is provided. The reactor includes a coil and a terminal block that is fixed to conductor wires that led out from both ends in a winding core direction of the coil. The terminal block includes an input-side terminal block that is fixed to an input-side conductor wire that leads out from one end of the coil, and an output-side terminal block that is fixed to an output-side conductor wire that leads out from another end portion of the coil. The input-side terminal block and the output-side terminal block are disposed on different levels in the winding core direction based on lead-out positions in the winding core direction of the input-side conductor wire and the output-side conductor wire.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: April 2, 2019
    Assignees: DAIKIN INDUSTRIES, LTD., TAMURA Corporation
    Inventors: Hideaki Tanaka, Kentarou Taoka, Motonobu Ikeda, Iwao Toyama, Yoshitaka Shimaya, Hiroki Imai