Patents by Inventor Hiroki Yoshikawa

Hiroki Yoshikawa 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: 20170288216
    Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound (SiOx where 0.5?x?1.6), the negative electrode active material particles being coated with a carbon coating composed of a substance at least partially containing carbon, the carbon coating having a density ranging from 1.2 g/cm3 to 1.9 g/cm3, the negative electrode active material particles having a characteristic of type II or type III adsorption-desorption isotherm in the IUPAC classification, as obtained by adsorption-desorption isotherm measurement with nitrogen gas. This negative electrode active material can increase the battery capacity and improve the cycle performance and battery initial efficiency.
    Type: Application
    Filed: July 30, 2015
    Publication date: October 5, 2017
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi KAMO, Kohta TAKAHASHI, Takakazu HIROSE, Koichiro WATANABE, Masahiro FURUYA, Hiroki YOSHIKAWA
  • Patent number: 9777131
    Abstract: A method enabling a used superabsorbent polymer recovered from used absorbent, etc., to be readily and inexpensively recovered without using acids or alkalies. The used superabsorbent polymer is treated with an aqueous solution of a multivalent metal salt such as calcium chloride, etc., the superabsorbent polymer treated with the aqueous solution of a multivalent metal salt is treated with an aqueous solution of an alkali metal salt such as sodium chloride, etc., the superabsorbent polymer treated with the aqueous solution of an alkali metal salt is washed with water, and the superabsorbent polymer washed with water is then dried.
    Type: Grant
    Filed: March 22, 2013
    Date of Patent: October 3, 2017
    Assignee: Unicharm Corporation
    Inventors: Naoyuki Funamizu, Ken Ushijima, Nowaki Hijikata, Hiroki Yoshikawa, Takayoshi Konishi, Toru Oba
  • Patent number: 9728779
    Abstract: The present invention provides a negative electrode for a non-aqueous electrolyte secondary battery, the negative electrode comprising a negative electrode active material layer containing: negative electrode active materials including carbon active material and silicon active material composed of SiOx at least partially coated with lithium carbonate where 0.5?x?1.6; and binders including carboxymethyl cellulose or metal salt thereof, polyacrylic acid or metal salt thereof, and styrene-butadiene rubber or polyvinylidene fluoride, and a non-aqueous electrolyte secondary battery including this negative electrode. The negative electrode can increase the battery capacity and improve the cycle performance and first charge and discharge efficiency.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: August 8, 2017
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu Hirose, Hiromichi Kamo, Hiroki Yoshikawa, Reiko Sakai
  • Publication number: 20170207450
    Abstract: The present invention is a negative electrode material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound expressed by SiOx where 0.5?x?1.6, the silicon compound being coated with a carbon coating layer composed of a carbon component, wherein the negative electrode active material particles contain a SiO2 component having a tridymite structure and exhibit a diffraction peak around 21.825° with a half width (2?) of 0.15° or less in X-ray diffraction. This negative electrode material for a non-aqueous electrolyte secondary battery can increase the battery capacity and improve the cycle performance and the initial charge and discharge performance.
    Type: Application
    Filed: June 19, 2015
    Publication date: July 20, 2017
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Kohta TAKAHASHI, Takakazu HIROSE, Masahiro FURUYA, Hiromichi KAMO, Hiroki YOSHIKAWA
  • Patent number: 9689066
    Abstract: The method for manufacturing a photomask blank according to the present invention, when manufacturing a photomask blank having at least one functional layer on a transparent substrate, in a step of film-formation of such a functional film where the functional film includes a chromium-containing element and an a metallic element that is capable of bringing a mixture of the metallic element and the chromium into a liquid phase at a temperature of 400° C. or lower, a chromium target (target A) and a target (target B) mainly containing at least one kind of the metallic element are simultaneously sputtered (co-sputtered). The present invention provides a technique for manufacturing a functional film having a small variation in its characteristics such as optical density and a low detect, and showing a high etching rate.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: June 27, 2017
    Assignee: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroki Yoshikawa, Souichi Fukaya, Yukio Inazuki, Hideo Nakagawa
  • Publication number: 20170149050
    Abstract: The present invention is a negative electrode material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles composed of a silicon compound (SiOx, where 0.5?x?1.6) containing a lithium compound, the negative electrode active material particles being coated with a coating containing at least two of a substance having two or more hydroxyl groups per molecule, phosphoryl fluoride, lithium carbonate, and a hydrocarbon that exhibits a positive ion spectrum CyH2 (1?y?3 and 2?z?5) when subjected to TOF-SIMS. There can be provided a negative electrode material for a non-aqueous electrolyte secondary battery, a non-aqueous electrolyte secondary battery including a negative electrode using this negative electrode material, and a method of producing negative electrode active material particles that can increase the battery capacity and improve the cycle performance and initial charge and discharge performance.
    Type: Application
    Filed: March 26, 2015
    Publication date: May 25, 2017
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu HIROSE, Hiroki YOSHIKAWA, Hiromichi KAMO
  • Publication number: 20170040599
    Abstract: A negative electrode material for a non-aqueous electrolyte secondary battery contains negative electrode active material particles containing a silicon compound expressed by SiOx, where 0.5?x?1.6, and a coating layer composed of an organic polymer coating the silicon compound, the silicon compound containing a lithium compound on its surface or inside.
    Type: Application
    Filed: November 14, 2014
    Publication date: February 9, 2017
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi KAMO, Takakazu HIROSE, Hiroki YOSHIKAWA
  • Publication number: 20170014431
    Abstract: A rocuronium bromide injection solution-prefilled syringe of the present invention includes a syringe comprising an outer cylinder made of synthetic resin, a gasket which is accommodated inside the outer cylinder and liquid-tightly slidable inside the outer cylinder, and a seal member for sealing a distal end opening of the outer cylinder; and a rocuronium bromide injection solution filled inside the syringe. The gasket is formed by vulcanized chlorinated butyl rubber added calcined clay, and said calcined clay is only added as an inorganic filler classified as an inorganic reinforcing agent and an inorganic filling agent.
    Type: Application
    Filed: September 29, 2016
    Publication date: January 19, 2017
    Applicant: Terumo Kabushiki Kaisha
    Inventors: Akira Yoshida, Yuki Watanabe, Aiko Horiuchi, Hiroki Yoshikawa
  • Publication number: 20160351947
    Abstract: The present invention is a negative electrode material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound expressed by SiOx, where 0.5?x?1.6, the silicon compound containing in its interior a lithium compound and one or more ions selected from Group 1 metal ions, Group 2 metal ions, and substitutable ammonium ions. This negative electrode material for a non-aqueous electrolyte secondary battery can increase the battery capacity and improve the cycle performance and the battery initial efficiency.
    Type: Application
    Filed: January 30, 2015
    Publication date: December 1, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi KAMO, Takakazu HIROSE, Hiroki YOSHIKAWA
  • Publication number: 20160344019
    Abstract: A negative electrode active material for a negative electrode material of a non-aqueous electrolyte secondary battery, includes a silicon-based material expressed by SiOx where 0.5?x?1.6 and either or both of a crystalized fluorine compound and a compound containing —CF2—CF2— units in at least a part of a surface layer of the negative electrode active material, the silicon-based material containing at least one of Li6Si2O7, Li2Si3O5, and Li4SiO4. There can be provided a negative electrode active material that can increase the battery capacity and improve the cycle performance and initial charge and discharge performance when used for a lithium-ion secondary battery, as well as a lithium-ion secondary battery having a negative electrode using this negative electrode active material.
    Type: Application
    Filed: January 26, 2015
    Publication date: November 24, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu HIROSE, Hiromichi KAMO, Hiroki YOSHIKAWA
  • Publication number: 20160336585
    Abstract: The present invention is directed to a negative electrode material for a non-aqueous electrolyte secondary battery, including a conductive powder composed of silicon-based active material particles coated with a conductive carbon film, in which the conductive carbon film exhibits a d-band having a peak half width of 100 cm?1 or more as determined from a Raman spectrum of the conductive carbon film. The invention provides a negative electrode material for a non-aqueous electrolyte secondary battery that has excellent cycle performance and keeps high charge and discharge capacity due to use of a silicon-based active material, a method of producing the negative electrode material for a non-aqueous electrolyte secondary battery, and a non-aqueous electrolyte secondary battery.
    Type: Application
    Filed: January 20, 2015
    Publication date: November 17, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Masahiro FURUYA, Kohta TAKAHASHI, Hiroki YOSHIKAWA, Hiromichi KAMO, Takakazu HIROSE
  • Publication number: 20160336592
    Abstract: The present invention provides a negative electrode for a non-aqueous electrolyte secondary battery, containing a plurality of negative electrode active materials including at least a silicon-based active material expressed by SiOx where 0.5?x?1.6 and a carbon-based active material, the silicon-based active material containing at least one of Li2SiO3 and Li4SiO4 therein, the silicon-based active material being coated with at least one of Li2CO3, LiF, and carbon, the silicon-based active material being included in an amount of 6 mass % or more with respect to a total amount of the negative electrode active materials. There can be provided a negative electrode that enables a lithium-ion secondary battery using this negative electrode to have improved cycle performance and initial charge and discharge performance and a lithium-ion secondary battery using this negative electrode.
    Type: Application
    Filed: December 3, 2014
    Publication date: November 17, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu HIROSE, Hiroki YOSHIKAWA, Hiromichi KAMO, Ken OHASHI
  • Patent number: 9488907
    Abstract: In the chromium-containing material film of the present invention, an element is added thereto and is capable of bringing a mixture of the element and the chromium into a liquid phase at a temperature of 400° C. or lower. The use of such a chromium-containing material film as an optical film (e.g., a light-shielding film, an etching mask film, or an etching stopper film) of a photo mask blank can achieve an improvement in chlorine-dry etching while retaining the same optical characteristics and the like as those of the conventional chromium-containing material film, thereby increasing the patterning precision.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: November 8, 2016
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Hiroki Yoshikawa, Souichi Fukaya, Yukio Inazuki, Tsuneo Yamamoto, Hideo Nakagawa
  • Publication number: 20160315310
    Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing silicon compound expressed by SiOx where 0.5?x?1.6, silicon compound containing lithium compound, wherein test cell combining electrode containing negative electrode active material particles and counter electrode composed of metallic lithium exhibits a first efficiency of 82% or more, and charge capacity of test cell at voltage of electrode of 0.17V ranges from 7% to 30% of first discharge capacity of test cell when test cell is successively subjected to constant current charge until voltage of electrode reaches 0.0V, constant voltage charge until a current is decreased to one tenth of a current at the constant current charge, and a constant current discharge until the voltage of the electrode reaches 1.2V. This negative electrode active material can increase the battery capacity and improve the cycle performance.
    Type: Application
    Filed: April 5, 2016
    Publication date: October 27, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi KAMO, Takakazu HIROSE, Takumi MATSUNO, Hiroki YOSHIKAWA
  • Patent number: 9449293
    Abstract: Embodiments are directed to displaying organizational information for a user's downline in an interactive graphical user interface (GUI). In one scenario, a computer system accesses portions of data for a user, where the data corresponds to secondary users in the user's downline. The computer system further generates a first-level view for the interactive GUI. The interactive GUI includes an interior portion configured to display filtered production data for the secondary users according to the accessed data as filtered by various production data filters. The interactive GUI also includes an exterior portion that includes rays extending outward from the interior portion, where each ray represents a secondary user's downline. The length and width of each ray is determined by the number of secondary users, and sales volume generated in the user's downline. The computer system then displays the generated first-level view in the interactive GUI.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: September 20, 2016
    Assignee: Neways, Inc.
    Inventors: Jawaad Bin Mahmood, Hiroki Yoshikawa, Kevin Givan
  • Publication number: 20160254537
    Abstract: A negative electrode active material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound expressed by SiOx where 0.5?x?1.6, the negative electrode active material particles at least partially coated with a carbon coating, the carbon coating exhibiting a specific surface area ranging from 5 m2/g to 1000 m2/g, the specific surface area being measured by a multipoint BET method after the carbon coating is separated from the negative electrode active material particles, the carbon coating exhibiting a compression resistivity ranging from 1.0×10?3 ?·cm to 1.0 ?·cm when the carbon coating is compressed so as to have a density of 1.0 g/cm3, the compression resistivity being measured after the carbon coating is separated from the negative electrode active material particles. This negative electrode active material can increase the battery capacity and improve the cycle performance and battery initial efficiency.
    Type: Application
    Filed: February 4, 2016
    Publication date: September 1, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi KAMO, Kenta FUJISAKI, Takumi MATSUNO, Takakazu HIROSE, Hiroki YOSHIKAWA
  • Publication number: 20160254525
    Abstract: The present invention is a negative electrode active material for a negative electrode active material layer of a lithium ion secondary battery, wherein: the negative electrode active material comprises silicon-based material consisting of SiOx (0.5?x?1.6); and the negative electrode active material has two or more peaks in a region of a bond energy ranging from 520 eV to 537 eV in an O 1s peak shape given in an X-ray photoelectron spectroscopy. As a result, it is possible to provide a negative electrode active material in which a battery capacity can be increased and cycle characteristics and initial charge/discharge characteristics can be improved when used as a negative electrode active material for a lithium ion secondary battery.
    Type: Application
    Filed: July 23, 2014
    Publication date: September 1, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu HIROSE, Hiromichi KAMO, Hiroki YOSHIKAWA
  • Publication number: 20160240843
    Abstract: The present invention provides a negative electrode active material for a non-aqueous electrolyte secondary battery, including negative electrode active material particles containing a silicon compound expressed by SiO where 0.55?x?1.6, the negative electrode active material particles at least partially coated with a carbon coating, the carbon coating exhibiting a peak at 2?=25.5° having a half width of 1.5° to 4.5° in an X-ray diffraction spectrum measured after separating the carbon coating from the negative electrode active material particles, the carbon coating exhibiting scattering peaks at 1330 cm?1 and 1580 cm?1 in Raman spectrum obtained by Raman spectrometry measured after separating the carbon coating from the negative electrode active material particles, wherein a ratio of an intensity of the scattering peak at 1330 cm?1 to that at 1580 cm?1 satisfies 0.7<I1330/I1580<2.0.
    Type: Application
    Filed: January 22, 2016
    Publication date: August 18, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiromichi KAMO, Kenta FUJISAKI, Takumi MATSUNO, Takakazu HIROSE, Hiroki YOSHIKAWA
  • Publication number: 20160233484
    Abstract: A negative electrode active material including: a particle of negative electrode active material containing silicon-based material of SiOx (0.5?x?1.6); wherein the intensity A of a peak in a Si-region given in the chemical shift region of from ?50 to ?95 ppm and the intensity B of a peak in a SiO2-region given in the chemical shift region of from ?96 to ?150 ppm in a 29Si-MAS-NMR spectrum of the silicon-based material satisfy a relationship that A/B?0.8. This provides a negative electrode active material which can increase a battery capacity, and can improve cycle characteristics and initial charge/discharge characteristics when used as a negative electrode active material for a lithium ion secondary battery.
    Type: Application
    Filed: May 30, 2014
    Publication date: August 11, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Takakazu HIROSE, Hiromichi KAMO, Hiroki YOSHIKAWA
  • Publication number: 20160218357
    Abstract: A silicon-containing material capable of being doped with lithium and de-doped, wherein when three-electrode cell produced by using working electrode including silicon-containing material as active material, reference electrode made of metallic lithium, counter electrode made of metallic lithium, and electrolyte having lithium ionic conductivity is charged and discharged to measure relationship between charging or discharging capacity and potential of working electrode on basis of reference electrode, ratio of first capacity to second capacity is 38% or more while current flows in direction in which lithium of silicon-containing material is de-doped in discharge, where first capacity is discharging capacity with respect to potential range from potential in fully charged state to 400 mV, and second capacity is discharging capacity with respect to potential range from a potential in fully charged state to 2000 mV.
    Type: Application
    Filed: September 11, 2014
    Publication date: July 28, 2016
    Applicant: SHIN-ETSU CHEMICAL CO., LTD.
    Inventors: Hiroki YOSHIKAWA, Hiromichi KAMO