Patents by Inventor Hiroyuki Nakao

Hiroyuki Nakao 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: 20240159481
    Abstract: A corrugated fin of a heat exchanger is formed such that fin sections are joined together one after another in a tube axial direction of a plurality of flat heat-transfer tubes. Louvers in the fin sections of the corrugated fin are divided into a first louver group formed further upstream in a direction of flow of air than a drain slit in the corrugated fin and a second louver group formed further downstream in the direction of flow of air than the drain slit. Plate portions of the first louver group and plate portions of the second louver group are inclined to a flat-plate portion in the fin sections and inclined in respective directions that are opposite to each other. The drain slit includes a plurality of drain slits provided in a plurality of respective rows between the first louver group and the second louver group.
    Type: Application
    Filed: April 13, 2021
    Publication date: May 16, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoji ONAKA, Rihito ADACHI, Nanami KISHIDA, Taisaku GOMYO, Tetsuji SAIKUSA, Yuki NAKAO, Atsushi KIBE, Hiroyuki MORIMOTO
  • Publication number: 20240159474
    Abstract: A heat exchanger includes a plurality of flat heat-transfer tubes and a corrugated fin placed between the plurality of flat heat-transfer tubes. Louvers in fin sections of the corrugated fin are divided into a first louver group formed further upstream in a direction of flow of air than a drain slit in the corrugated fin and a second louver group formed further downstream in the direction of flow of air than the drain slit. Plate portions of the first louver group and plate portions of the second louver group are inclined to a flat-plate portion in the fin sections and inclined in respective directions that are opposite to each other. The drain slit includes a plurality of drain slits formed between the first louver group and the second louver group at an interval in the direction of flow of air.
    Type: Application
    Filed: February 17, 2022
    Publication date: May 16, 2024
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yoji ONAKA, Rihito ADACHI, Nanami KISHIDA, Taisaku GOMYO, Tetsuji SAIKUSA, Yuki NAKAO, Atsushi KIBE, Hiroyuki MORIMOTO
  • Publication number: 20240136102
    Abstract: A winding of a transmission coil included in a power transmission device of a contactless power feed apparatus and serving to transmit AC power to a power reception device contactlessly is formed of a wiring pattern provided on a substrate. The transmission coil is divided into partial coils arranged coaxially. Each of the partial coils is formed such that, among the partial coils, a number of turns of a winding included in a partial coil is larger as the partial coil is located more outwardly.
    Type: Application
    Filed: September 6, 2023
    Publication date: April 25, 2024
    Applicant: OMRON Corporation
    Inventors: Goro NAKAO, Yuki ITO, Taichi MISHIMA, Yusuke KAWAI, Hiroyuki IBUKI, Yoshihisa ISHIKAWA
  • Patent number: 11966008
    Abstract: The present invention provides an optical film having a liquid crystal layer having excellent durability, and a liquid crystal film. The optical film of the present invention has an organic base material and a liquid crystal layer disposed on the organic base material, the liquid crystal layer contains a photo-alignment compound, and in the liquid crystal layer, the photo-alignment compound is unevenly distributed on a side of the organic base material.
    Type: Grant
    Filed: August 1, 2022
    Date of Patent: April 23, 2024
    Assignee: FUJIFILM Corporation
    Inventors: Kazushige Nakagawa, Hideyuki Nishikawa, Masato Nakao, Shunya Katoh, Hiroyuki Hagio, Yutaka Nozoe, Kunihiro Kasezawa, Yuki Nakamura
  • Publication number: 20230139814
    Abstract: A sheet molding compound according to a first aspect of the present invention comprises: a thickened product of a resin composition comprising a vinyl ester resin, a thickener, a polymerization initiator, a polymerization inhibitor and isobornyl methacrylate; and a reinforcing fiber.
    Type: Application
    Filed: June 23, 2022
    Publication date: May 4, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Seiji TSUCHIYA, Hayato OGASAWARA, Yukichi KONAMI, Hiroyuki NAKAO, Shinichirou FURUYA, Yasuhiko NABESHIMA, Atsushi TAKAHASHI
  • Publication number: 20230021189
    Abstract: A manufacturing method of an SMC of the present invention comprises (i) forming chopped carbon fiber bundles by chopping a continuous carbon fiber bundle having a filament number of NK with a rotary cutter, (ii) fragmentation-processing the chopped carbon fiber bundles by using a fragmentation-processing apparatus comprising a rotating body, (iii) forming a carbon fiber mat by depositing the fragmentation-processed chopped carbon fiber bundles on a carrier film traveling below the rotary cutter, and (iv) impregnating the carbon fiber mat with a thermosetting resin composition, wherein N is 20 or more, and the fragmentation-processing apparatus comprises a first pin roller and a second pin roller which are disposed side by side, each having a rotation axis parallel to a rotation axis direction of the rotary cutter.
    Type: Application
    Filed: September 16, 2022
    Publication date: January 19, 2023
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki Nakao, Yasushi Watanabe, Tadao Samejima, Yukihiro Mizutori
  • Publication number: 20210108363
    Abstract: A sizing agent is provided, the sizing agent being blended with a component (A) and a component (B), wherein a mass ratio A/B of the component (A) to the component (B) is 0.5 to 20, and a proportion of a total mass of the component (A) and the component (B) with respect to a total mass of the sizing agent is 80% by mass or more, wherein the component (A) is an epoxy resin having a viscosity of 1 to 180,000 Pa·s at 30° C., and the component (B) is an aliphatic ester compound having a freezing point of 50° C. or lower.
    Type: Application
    Filed: December 22, 2020
    Publication date: April 15, 2021
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kenji KANETA, Kouki WAKABAYASHI, Tsuyoshi TAKADA, Hiroyuki NAKAO
  • Publication number: 20200131297
    Abstract: A sheet molding compound according to a first aspect of the present invention comprises: a thickened product of a resin composition comprising a vinyl ester resin, a thickener, a polymerization initiator, a polymerization inhibitor and isobornyl methacrylate; and a reinforcing fiber.
    Type: Application
    Filed: December 30, 2019
    Publication date: April 30, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Seiji TSUCHIYA, Hayato OGASAWARA, Yukichi KONAMI, Hiroyuki NAKAO, Shinichirou FURUYA, Yasuhiko NABESHIMA, Atsushi TAKAHASHI
  • Publication number: 20200087469
    Abstract: A fiber-reinforced molding material of the present invention includes a matrix resin and a reinforcing fiber, wherein the matrix resin includes a reactant of the following component (A) and the following component (B), and the following component (C), and a spiral flow length measured in accordance with EIMS T901 is 300 mm or longer, component (A): a component having one or more ethylenically unsaturated groups in one molecule and including at least one selected from the group consisting of the following component (A-1) and the following component (A-2); component (A-1): an unsaturated polyester resin having one or more ethylenically unsaturated groups and one or more hydroxyl groups in one molecule; component (A-2): an epoxy (meth)acrylate resin having one or more ethylenically unsaturated groups and one or more hydroxyl groups in one molecule; component (B): an isocyanate compound; component (C): a radical polymerization inhibitor having no hydroxyl group in a molecule.
    Type: Application
    Filed: November 20, 2019
    Publication date: March 19, 2020
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Hiroyuki NAKAO, Seiji TSUCHIYA
  • Patent number: 9890481
    Abstract: The purpose of the present invention is to provide a method whereby deposits which have occurred on the surfaces of a fiber bundle during flameproofing treatment of a carbon fiber-precursor acrylic fiber bundle can be efficiently removed prior to carbonization treatment at high temperature. The method for production of carbon fiber bundle includes a step in which, after a carbon fiber-precursor acrylic fiber bundle has been heated and undergone flameproofing treatment, the fiber bundle is subjected to a plasma treatment involving contact with a plasma gas in gas phase, or to an ultraviolet treatment involving irradiation with ultraviolet in gas phase; and a step in which the fiber bundle having undergone the plasma treatment or the ultraviolet treatment is subjected to a carbonization treatment.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: February 13, 2018
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Mitsuhiro Hamada, Hiroyuki Nakao, Hiromi Aso, Yoshitaka Kageyama
  • Patent number: 9796590
    Abstract: Provided is a carbon fiber manufacturing method including a surface treatment step of ejecting an ozone solution in which ozone is dissolved in solvent from a fluid ejecting port toward a carbon fiber bundle and causing the ozone solution to pass between single fibers of the carbon fiber bundle so as to contact surfaces of the single fibers so that the surfaces of carbon fibers are treated by the ozone solution. Also, provided is a carbon fiber subjected to a surface treatment by the carbon fiber manufacturing method.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: October 24, 2017
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Takayuki Kiriyama, Masahiro Hata, Hiroyuki Nakao, Nobuyuki Yamamoto, Masashi Shimahara, Kenichi Watanabe, Yasunori Murano, Hiroshi Tategaki
  • Publication number: 20150299908
    Abstract: The purpose of the present invention is to provide a method whereby deposits which have occurred on the surfaces of a fiber bundle during flameproofing treatment of a carbon fiber-precursor acrylic fiber bundle can be efficiently removed prior to carbonization treatment at high temperature. The method for production of carbon fiber bundle includes a step in which, after a carbon fiber-precursor acrylic fiber bundle has been heated and undergone flameproofing treatment, the fiber bundle is subjected to a plasma treatment involving contact with a plasma gas in gas phase, or to an ultraviolet treatment involving irradiation with ultraviolet in gas phase; and a step in which the fiber bundle having undergone the plasma treatment or the ultraviolet treatment is subjected to a carbonization treatment.
    Type: Application
    Filed: November 22, 2013
    Publication date: October 22, 2015
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Mitsuhiro HAMADA, Hiroyuki NAKAO, Hiromi ASO, Yoshitaka KAGEYAMA
  • Publication number: 20150274860
    Abstract: A process for producing a flame-resistant fiber bundle, the process comprising a step in which a flame-resistant fiber bundle (1) having a single-fiber density ?F1 of 1.26 g/cm3 to 1.36 g/cm3 is brought into contact sequentially with a heater group having a surface temperature TH of 240° C. to 400° C. under the following conditions (A), (B), and (C) to obtain a flame-resistant fiber bundle (2) having a single-fiber density ?F2 of 1.33 g/cm3 to 1.43 g/cm3: (A) the heater Hn+1 with which the fiber bundle is brought into contact “n+1”-thly has a highter temperature than the heater Hn with which the fiber bundle is brought into contact “n”-thly; (B) the total contact time between the fiber bundle and the heater group is 10 seconds to 360 seconds; and (C) the contact time between the fiber bundle and each heater is 2 seconds to 20 seconds.
    Type: Application
    Filed: December 26, 2012
    Publication date: October 1, 2015
    Inventors: Yoshihiro Sako, Hiroyuki Nakao, Tomoyuki Kotani, Yasuhito Tokoro, Hiroshi Tategaki, Akiyoshi Kogame, Kazunori Sumiya, Kenji Hirano
  • Publication number: 20150022398
    Abstract: Whether received positioning signals are target positioning signals is determined accurately. A first code phase difference of a first replica code signal of a positioning signal StA and a second code phase difference of a second replica code signal of a positioning signal StB are acquired. A first pseudorange ?1 is calculated based on the first code phase difference and a second pseudorange ?2 is calculated based on the second code phase difference. An absolute value of a pseudorange difference that is a differential value between the first pseudorange ?1 and the second pseudorange ?2 is calculated. If the absolute value of the pseudorange difference is lower than a threshold, the positioning signals of which codes are currently tracked are determined to be the positioning signals StA and StB from a target positioning satellite. If the absolute value of the pseudorange difference is higher than the threshold, cross-correlation is determined to have occurred.
    Type: Application
    Filed: February 5, 2013
    Publication date: January 22, 2015
    Inventors: Katsuhisa Yamashina, Hiroyuki Nakao
  • Publication number: 20140234199
    Abstract: Provided is a carbon fiber manufacturing method including a surface treatment step of ejecting an ozone solution in which ozone is dissolved in solvent from a fluid ejecting port toward a carbon fiber bundle and causing the ozone solution to pass between single fibers of the carbon fiber bundle so as to contact surfaces of the single fibers so that the surfaces of carbon fibers are treated by the ozone solution. Also, provided is a carbon fiber subjected to a surface treatment by the carbon fiber manufacturing method.
    Type: Application
    Filed: August 2, 2012
    Publication date: August 21, 2014
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Takayuki Kiriyama, Masahiro Hata, Hiroyuki Nakao, Nobuyuki Yamamoto, Masashi Shimahara, Kenichi Watanabe, Yasunori Murano, Hiroshi Tategaki
  • Publication number: 20130295811
    Abstract: Provided are: a carbon fiber bundle which has a large value of single-fiber fineness and excellent productivity and which, despite this, contains few interlaced single fibers therein and has excellent spreadability; and precursor fibers which are suitable for use in producing the carbon fiber bundle. The precursor fibers are a carbon-fiber-precursor acrylic fiber bundle which comprises a polyacrylonitrile copolymer comprising 95-99 mol % acrylonitrile units and 1-5 mol % hydroxyalkyl (meth)acrylate units and which has a single-fiber fineness of 1.5-5.0 dtex. In the acrylic fiber bundle, the cross-section of each single fiber which is perpendicular to the fiber axis has a shape that has a roundness of 0.9 or less.
    Type: Application
    Filed: October 13, 2011
    Publication date: November 7, 2013
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Yuusuke Shinmen, Norifumi Hirota, Atsushi Nakajima, Naoki Aoyama, Naomasa Matsuyama, Takeshi Nii, Akiyoshi Kogame, Yasuyuki Fujii, Yoshiko Irie, Harumi Matsuda, Takayuki Kiriyama, Teppei Miura, Takuya Teranishi, Shouhei Mori, Manabu Kaneko, Kiharu Numata, Masahiro Ichino, Shigekazu Takeda, Takayuki Kobayashi, Toshiyuki Itou, Masahiro Hata, Hiroyuki Nakao, Kenichi Watanabe
  • Patent number: 6741511
    Abstract: When a test mode signal from a control circuit is activated, an operation of a column related circuit is controlled to continuously apply a voltage stress to complementary internal data lines included in the column related circuit. Specifically, a write driver driving a data line is forcedly kept in an inactive state, a sense amplifier is connected to the internal data lines, a column select operation is prohibited and the internal data lines are forcedly, continuously driven in accordance with the write driver, or a voltage setting circuit is connected to the internal data lines and the voltage stress of the internal data lines is accelerated in accordance with the voltage setting circuit during a test. It is possible to continuously apply the voltage stress between complementary data lines of the internal data lines without the need to repeatedly carry out a data write operation, and it is possible to reduce time required for an inter-complementary data line voltage stress test.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: May 25, 2004
    Assignee: Renesas Technology Corp.
    Inventor: Hiroyuki Nakao
  • Publication number: 20030189263
    Abstract: A semiconductor module is provided with a module substrate, a plurality of semiconductor chips formed on the module substrate, and a mold resin formed so as to integrally cover the plurality of semiconductor chips. Then, a plurality of trenches is formed on the main surface of the module substrate, so as to be parallel to one side forming the main surface, on the side on which the bare chips are formed. Thereby, a semiconductor module can be obtained wherein it is possible to restrict separation of the mold resin from the module substrate.
    Type: Application
    Filed: September 18, 2002
    Publication date: October 9, 2003
    Applicant: Mitsubishi Denki Kabushiki Kaisha; Mitsubishi Electric Engineering Company Limited
    Inventors: Seiji Sawada, Hiroyuki Nakao, Tatsuji Kobayashi
  • Publication number: 20030133350
    Abstract: When a test mode signal from a control circuit is activated, an operation of a column related circuit is controlled to continuously apply a voltage stress to complementary internal data lines included in the column related circuit. Specifically, a write driver driving a data line is forcedly kept in an inactive state, a sense amplifier is connected to the internal data lines, a column select operation is prohibited and the internal data lines are forcedly, continuously driven in accordance with the write driver, or a voltage setting circuit is connected to the internal data lines and the voltage stress of the internal data lines is accelerated in accordance with the voltage setting circuit during a test. It is possible to continuously apply the voltage stress between complementary data lines of the internal data lines without the need to repeatedly carry out a data write operation, and it is possible to reduce time required for an inter-complementary data line voltage stress test.
    Type: Application
    Filed: September 20, 2002
    Publication date: July 17, 2003
    Applicant: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Hiroyuki Nakao
  • Patent number: 5972391
    Abstract: A swine feed containing as additives a spice and 50-500 ppm of vitamin E. A method for producing pork with improved quality by raising swine with such a feed is also disclosed. When swine are raised with the feed of the present invention, it is possible to produce pork which gives less smell, maintains freshness and quality for prolonged periods, generates less drip, and exhibits good moisture retainability. Moreover, the growth rate of the swine is excellent.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: October 26, 1999
    Assignee: Nisshin Flour Milling Co., Ltd.
    Inventors: Hiroyuki Suzuki, Hiroyuki Nakao, Jino Kikuchi