Patents by Inventor Chihiro Hayashi

Chihiro Hayashi 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: 20240092958
    Abstract: A thermosetting resin composition containing a maleimide compound (a) having at least one N-substituted maleimide group, and a compound (b) represented by the following general formula (1) exhibiting no reactivity with the maleimide group of the component (a) (Xb1 represents a single bond or a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 5 carbon atoms; Rb1 and Rb2 each independently represent a substituted or unsubstituted aliphatic hydrocarbon group having 1 to 10 carbon atoms, a substituted or unsubstituted aromatic hydrocarbon group having 6 to 18 ring carbon atoms, a substituted or unsubstituted heterocyclic aromatic hydrocarbon group having 5 to 20 ring atoms, an oxygen atom-containing group, or a group containing a combination of these groups; and m and n each independently represent an integer of 0 to 5).
    Type: Application
    Filed: December 17, 2021
    Publication date: March 21, 2024
    Inventors: Koji MORITA, Ryo SHIMOKAWA, Shinji TSUCHIKAWA, Keiichi KASUGA, Chihiro HAYASHI, Tomio IWASAKI
  • Publication number: 20240032209
    Abstract: Provided are a maleimide resin composition containing (A) one or more selected from the group consisting of a maleimide compound having two or more N-substituted maleimide groups and a derivative thereof, (B) a modified conjugated diene polymer, and (C) a thermoplastic elastomer other than the above component (B), wherein the component (B) is one resulting from modification of (b1) a conjugated diene polymer having a vinyl group in the side chain with (b2) a maleimide compound having two or more N-substituted maleimide groups; and a prepreg, a resin film, a laminated board, a printed wiring board and a semiconductor package, each using the maleimide resin composition.
    Type: Application
    Filed: November 16, 2021
    Publication date: January 25, 2024
    Inventors: Chihiro HAYASHI, Minoru KAKITANI, Takao TANIGAWA, Ryuji AKEBI, Naoyoshi SATO, Akira HORIE
  • Publication number: 20230391940
    Abstract: The present invention relates to a maleimide resin composition containing (A) one or more selected from the group consisting of a maleimide compound having one or more N-substituted maleimide groups and a derivative thereof, and (B) a polymer having a hydrocarbon chain or a polyether chain in a main chain thereof, wherein the component (A) dissolves in an alcohol-based solvent, a ketone-based solvent, an aromatic hydrocarbon-based solvent, an ester-based solvent, or a nitrogen atom-containing solvent in an amount of 30% by mass or more at 25° C. The present invention also relates to a prepreg, a laminate, a resin film, a printed wiring board, and a semiconductor package that are obtained by using the maleimide resin composition.
    Type: Application
    Filed: November 16, 2021
    Publication date: December 7, 2023
    Inventors: Naoyoshi SATO, Shuji GOZU, Minoru KAKITANI, Takao TANIGAWA, Ryuji AKEBI, Chihiro HAYASHI
  • Publication number: 20230392001
    Abstract: The present invention relates to a maleimide resin composition containing (A) one or more selected from the group consisting of a maleimide compound having one or more N-substituted maleimide groups and a derivative thereof; and (B) a polymer having a hydrocarbon chain or a polyether chain in a main chain thereof, wherein the component (A) contains (A1) a maleimide compound having one or more N-substituted maleimide groups and a molecular weight of less than 600 and (A2) a maleimide compound having one or more N-substituted maleimide groups and a molecular weight of 600 or more. The present invention also relates to a prepreg, a laminated board, a resin film, a printed wiring board, and a semiconductor package that are obtained by using the maleimide resin composition.
    Type: Application
    Filed: November 16, 2021
    Publication date: December 7, 2023
    Inventors: Naoyoshi SATO, Shuji GOZU, Minoru KAKITANI, Takao TANIGAWA, Ryuji AKEBI, Chihiro HAYASHI
  • Patent number: 10330943
    Abstract: An image display device includes a half mirror, an image output device configured to output a light beam to one face of the half mirror, and a retroreflective member configured to retroreflect at least one of a light beam mirror-reflected off the one face of the half mirror and a light beam transmitted through the one face of the half mirror. The retroreflective member has a base material layer and a plurality of prismatic retroreflective elements formed on one face or two faces of the base material layer. The tilt angle of the optical axis of the prismatic retroreflective element exceeds zero degree.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: June 25, 2019
    Assignee: NIPPON CARBIDE INDUSTRIES CO., INC.
    Inventors: Takuma Houzyou, Chihiro Hayashi
  • Patent number: 10302954
    Abstract: An image display device includes a half mirror, an image output device configured to output a light beam to one face of the half mirror, and a retroreflective member configured to retroreflect at least one of a light beam mirror-reflected off the one face of the half mirror and a light beam transmitted through the one face of the half mirror. The retroreflective member has a base material layer and a plurality of prismatic retroreflective elements formed on one face or two faces of the base material layer. The height of the prismatic retroreflective elements is 10 ?m or more and 1,000 ?m or less. The tilt angle of the optical axis of the prismatic retroreflective elements is zero degree.
    Type: Grant
    Filed: June 10, 2016
    Date of Patent: May 28, 2019
    Assignee: NIPPON CARBIDE INDUSTRIES CO., INC.
    Inventors: Takuma Houzyou, Chihiro Hayashi
  • Patent number: 10232418
    Abstract: A solid billet is piercing-rolled using a 4 roll-type inclined rolling mill including larger-diameter cone-type main rolls arranged horizontally or vertically to face each other across a pass line and smaller-diameter auxiliary rolls arranged vertically or horizontally to face each other similarly across the pass line between the facing main rolls, while maintaining a feed angle ? and cross angle ? of the main rolls and a feed angle ?? and cross angle ?? of the auxiliary rolls to be within the ranges: 5°?“?, ??”?25°; 3°?“?, ??”?35°; and 10°?“?+?, ??+??”?55°.
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: March 19, 2019
    Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATION
    Inventor: Chihiro Hayashi
  • Publication number: 20180164596
    Abstract: An image display device includes a half mirror, an image output device configured to output a light beam to one face of the half mirror, and a retroreflective member configured to retroreflect at least one of a light beam mirror-reflected off the one face of the half mirror and a light beam transmitted through the one face of the half mirror. The retroreflective member has a base material layer and a plurality of prismatic retroreflective elements formed on one face or two faces of the base material layer. The tilt angle of the optical axis of the prismatic retroreflective element exceeds zero degree.
    Type: Application
    Filed: June 10, 2016
    Publication date: June 14, 2018
    Inventors: Takuma Houzyou, Chihiro Hayashi
  • Publication number: 20180157049
    Abstract: An image display device includes a half mirror, an image output device configured to output a light beam to one face of the half mirror, and a retroreflective member configured to retroreflect at least one of a light beam mirror-reflected off the one face of the half mirror and a light beam transmitted through the one face of the half mirror. The retroreflective member has a base material layer and a plurality of prismatic retroreflective elements formed on one face or two faces of the base material layer. The height of the prismatic retroreflective elements is 10 ?m or more and 1,000 ?m or less. The tilt angle of the optical axis of the prismatic retroreflective elements is zero degree.
    Type: Application
    Filed: June 10, 2016
    Publication date: June 7, 2018
    Inventors: Takuma Houzyou, Chihiro Hayashi
  • Publication number: 20170252963
    Abstract: A manufacturing device for an optical sheet according to the present invention includes a first belt 34 extending on a first heating roll 31 and a first chill roll 32 and a second belt 44 extending on a second heating roll 41 and a second chill roll 42. The first heating roll 31 presses, from the surface of the second belt 44, a second belt non-contact portion PT2 of the second belt 44 facing the first belt 34 where the second heating roll 41 is not in contact with the second chill roll 42. The second chill roll 42 presses, from the surface of the first belt, a first belt non-contact portion PT1 of the first belt 34 facing the second belt 44 where the first heating roll 31 is not in contact with the first chill roll 32.
    Type: Application
    Filed: August 21, 2015
    Publication date: September 7, 2017
    Inventors: Ikuo Mimura, Chihiro Hayashi
  • Publication number: 20170001225
    Abstract: A solid billet is piercing-rolled using a 4 roll-type inclined rolling mill including larger-diameter cone-type main rolls arranged horizontally or vertically to face each other across a pass line and smaller-diameter auxiliary rolls arranged vertically or horizontally to face each other similarly across the pass line between the facing main rolls, while maintaining a feed angle ? and cross angle ? of the main rolls and a feed angle ?? and cross angle ?? of the auxiliary rolls to be within the ranges: 5°?“?, ??”?25°; 3°?“?, ??”?35°; and 10°?“?+?, ??+??”?55°.
    Type: Application
    Filed: March 16, 2015
    Publication date: January 5, 2017
    Inventor: Chihiro HAYASHI
  • Patent number: 9533442
    Abstract: Providing an injection mold used for producing a molded resin article which is free of a weld line, irrespective of an injection pressure of a molten resin. At least one protrusion is provided in a first region of a ring runner portion defined by an inner circumferential surface of a first communication hole extending toward a cavity and an outer circumferential surface of a pin member disposed coaxially within the first communication hole, such that the protrusion projects from either one of these surfaces and an end face of the protrusion is held in contact with the other of these surfaces. The first region is a half of a circumference of the ring runner portion and is opposite to a circumferential position at which the first communication hole and a second communication hole extending perpendicularly to the first communication hole communicate with each other, with respect to the pin member.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: January 3, 2017
    Assignee: Kojima Plastics Co., Ltd.
    Inventors: Makoto Yokota, Chihiro Hayashi, Kazuhiko Tajiri, Yusuke Hiroi
  • Publication number: 20160075064
    Abstract: Providing an injection mold used for producing a molded resin article which is free of a weld line, irrespective of an injection pressure of a molten resin. At least one protrusion is provided in a first region of a ring runner portion defined by an inner circumferential surface of a first communication hole extending toward a cavity and an outer circumferential surface of a pin member disposed coaxially within the first communication hole, such that the protrusion projects from either one of these surfaces and an end face of the protrusion is held in contact with the other of these surfaces. The first region is a half of a circumference of the ring runner portion and is opposite to a circumferential position at which the first communication hole and a second communication hole extending perpendicularly to the first communication hole communicate with each other, with respect to the pin member.
    Type: Application
    Filed: December 23, 2014
    Publication date: March 17, 2016
    Inventors: Makoto YOKOTA, Chihiro HAYASHI, Kazuhiko TAJIRI, Yusuke HIROI
  • Patent number: 8728360
    Abstract: [Object] An apparatus and a method for producing optical sheeting with which increased productivity can be achieved while maintaining the accuracy of produced optical sheeting.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: May 20, 2014
    Assignee: Nippon Carbide Industries Co., Inc.
    Inventors: Ikuo Mimura, Chihiro Hayashi, Akihiro Mathuda, Hiroshi Hamada, Naotake Osaki
  • Patent number: 8663021
    Abstract: A torque fluctuation absorber includes a first rotating member arranged to be rotatable, a second rotating member arranged in a rotatable manner relative to the first rotating member, a coil spring for buffering a torsion between the first rotating member and the second rotating member by means of an elastic force, and a cushion member arranged at an inside of the coil spring and buffering the torsion between the first rotating member and the second rotating member by means of an elastic force, wherein the cushion member includes an elastic member formed in a columnar shape, and an abrasion resistant member partly covering a side surface of the elastic member and including a greater abrasion resistance than an abrasion resistance of the elastic member.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: March 4, 2014
    Assignees: Aisin Seiki Kabushiki Kaisha, Kojima Co., Ltd.
    Inventors: Tomohiro Saeki, Atsushi Yamazumi, Yuki Miyamoto, Makoto Yokota, Chihiro Hayashi, Takashi Murate
  • Patent number: 8528378
    Abstract: A method for producing an ultrathin-wall seamless metal tube, which employs a cold pilger mill of mechatronics drive type including a mechanism to give a feed and a turn angle to a tube material, utilizes a roll having a tapered groove whose diameter gradually increases or gradually decreases from an engaging entry side to a finishing exit side of a pair of rolls, and a tapered mandrel whose diameter similarly gradually increases from the engaging entry side to the finishing exit side to elongate the tube material by reducing a wall thickness while expanding a mid-wall diameter of the tube material. By giving amounts of a turn angle and/or a feed equivalent or nearly equivalent to the forward stroke to the tube material immediately before the start of a backward stroke, it is possible to achieve a further increase in the reduction-rate of rolling, a further reduction of wall thickness, and improvement of dimensional accuracy of the product.
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: September 10, 2013
    Assignee: Nippon Steel & Sumitomo Metal Corporation
    Inventor: Chihiro Hayashi
  • Patent number: 8511839
    Abstract: A retroreflective article having excellent retroreflective efficiency, entrance angle characteristic, observation angle characteristic, and rotation angle characteristic is provided.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: August 20, 2013
    Assignee: Nippon Carbide Industries Co., Inc.
    Inventors: Ikuo Mimura, Keiji Amemiya, Chihiro Hayashi
  • Patent number: D1029220
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: May 28, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroki Hayashi, Chihiro Sugano, Takaaki Sanagi, Koki Nishikawa
  • Patent number: D1030019
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: June 4, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroki Hayashi, Chihiro Sugano, Takaaki Sanagi, Koki Nishikawa
  • Patent number: D1030020
    Type: Grant
    Filed: March 1, 2022
    Date of Patent: June 4, 2024
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hiroki Hayashi, Chihiro Sugano, Takaaki Sanagi, Koki Nishikawa