Patents by Inventor Kazuhiko Ishihara

Kazuhiko Ishihara 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).

  • Patent number: 10799136
    Abstract: A bioelectrode includes a fitting member (1106) formed by an electrically insulating member fixed on a surface of a garment (1100) that comes in contact with a living body (1000), an electrode part (1101a) formed by a conductive member fixed on a surface of the fitting member (1106) that comes in contact with the living body (1000), a connector (1102a) fixed to the fitting member (1106) and configured to connect a bioelectric signal measurement device, a wiring line (1103a) fixed to the fitting member (1106) and configured to electrically connect the connector (1102a) and the electrode part (1101a), and an electrically-insulating insulating member (1105) configured to cover a portion within the surface of the wiring line (1103a) that comes in contact with the living body (1000).
    Type: Grant
    Filed: December 7, 2015
    Date of Patent: October 13, 2020
    Assignees: NIPPON TELEGRAPH AND TELEPHONE CORPORATION, TORAY INDUSTRIES, INC.
    Inventors: Kazuhiko Takagahara, Ryusuke Kawano, Takako Ishihara, Michiko Seyama, Ryoichi Kasahara, Yasuhiro Sato, Atsushi Horiuchi, Masanobu Sato, Emiko Ishikawa, Keiji Takeda, Noriko Nagai
  • Publication number: 20200283297
    Abstract: A method for producing an oligosilane which includes a reaction step of producing an oligosilane by dehydrogenative coupling of hydrosilane. The reaction step is carried out in the presence of a catalyst containing at least one transition element selected from the group consisting of Periodic Table group 3 transition elements, group 4 transition elements, group 5 transition elements, group 6 transition elements, and group 7 transition elements. Also disclosed is a method for producing a catalyst for dehydrogenative coupling that produces an oligosilane by dehydrogenative coupling of hydrosilane.
    Type: Application
    Filed: February 14, 2017
    Publication date: September 10, 2020
    Applicant: SHOWA DENKO K.K.
    Inventors: Kiyoshi NOMURA, Hiroshi UCHIDA, Yoshimitsu ISHIHARA, Shigeru SHIMADA, Kazuhiko SATO, Masayasu IGARASHI
  • Publication number: 20200190298
    Abstract: A resin molded body includes: a polyolefin element formed of polyolefin, including a crystalline region and an amorphous region; and a hydrophilic copolymer contained in at least part of a surface of the polyolefin element, the hydrophilic copolymer including a copolymer of 2-methacryloyloxyethyl phosphorylcholine (MPC) of 45% or greater on a mole fraction basis and at least one other monomer. In the resin molded body, the MPC polymer is immersed through the surface by applying heat treatment.
    Type: Application
    Filed: March 20, 2018
    Publication date: June 18, 2020
    Applicants: KYOCERA Corporation, The University of Tokyo
    Inventors: Masayuki KYOMOTO, Kazuhiko ISHIHARA
  • Publication number: 20190345316
    Abstract: A resin molded body, includes: a polyolefin element including a crystalline region and an amorphous region; and a hydrophilic polymer contained in a region from a surface of the polyolefin element to part of the amorphous region located below the surface. Or, a method for producing a resin molded body, includes: preparing a polyolefin element including a crystalline region and an amorphous region; forming a coating of a hydrophilic polymer on a surface of the polyolefin element; and applying heat treatment to the polyolefin element on which the coating of the hydrophilic polymer is formed, wherein by applying the heat treatment, the coating of the hydrophilic polymer is immersed in a region from the surface to part of the amorphous region located below the surface.
    Type: Application
    Filed: March 20, 2018
    Publication date: November 14, 2019
    Applicants: KYOCERA Corporation, The University of Tokyo
    Inventors: Masayuki KYOMOTO, Kazuhiko ISHIHARA
  • Publication number: 20190316054
    Abstract: Provided is a lubricity-imparting agent that can impart durable lubricity (in particular, lubricity at the time of wetting) to a substrate. It has been found that a lubricity-imparting agent including a copolymer containing a constitutional unit (A) based on 2-methacryloyloxyethyl phosphorylcholine and a constitutional unit (B) based on a photoreactive functional group-containing monomer, or a copolymer containing a constitutional unit (A) based on 2-methacryloyloxyethyl phosphorylcholine, a constitutional unit (B) based on a photoreactive functional group-containing monomer, and a constitutional unit (C) based on a hydrophobic group-containing monomer can impart durable lubricity to a substrate surface through a simple approach called photoirradiation.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 17, 2019
    Applicants: NOF CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Kazuhiko ISHIHARA, Tomozumi NODA, Masaru MATSUDA, Satoshi YAMADA, Nobuyuki SAKAMOTO
  • Publication number: 20190274573
    Abstract: A wearable electrode includes an electrode (203) fixed to garment (21) such that the electrode (203) can simultaneously come in contact with the skin of respective parts from the ventral side to the dorsal side of the upper left part of the body of a wearer (20), and an electrode (204) fixed to the garment such that the electrode (204) can simultaneously come in contact with the skin of respective parts from the ventral side to the dorsal side of the upper right part of the body of the wearer (20). The electrodes (203, 204) are installed such that the attaching positions gradually descend from the ventral side to the dorsal side with the wearer (20) standing upright, or the attaching positions gradually ascend from the ventral side to the dorsal side with the wearer (20) standing upright.
    Type: Application
    Filed: October 16, 2017
    Publication date: September 12, 2019
    Inventors: Takako ISHIHARA, Kazuhiko TAKAGAHARA, Hiromi TAKARADA, Emiko ISHIKAWA, Masanobu SATO, Yasuharu MURAKAMI
  • Publication number: 20190261921
    Abstract: A biosignal detecting garment includes: a crop top type or brassiere type garment body; an under belt that have a fastening tool capable of adjusting a chest circumference size and that is disposed in a lower portion of the garment body; at least two electrodes formed of an electroconductive fiber; a connector for installing a measurement device configured to detect a biosignal; and a wiring portion configured to electrically connect the electrodes and the connector. The electrodes, the connector, and the wiring portion are installed in the under belt, the garment body has a length from an apex of a shoulder portion of the garment body to an upper portion of the under belt of 20.0 cm or more and 35.0 cm or less, and the under belt is formed in a bag shape with two pieces stacked.
    Type: Application
    Filed: September 5, 2017
    Publication date: August 29, 2019
    Inventors: Azuki Otsuka, Emiko Ishikawa, Yasuharu Murakami, Takako Ishihara, Kazuhiko Takagahara, Kouji Fujii
  • Publication number: 20190256731
    Abstract: [Problem] To provide a surface treatment polymer.
    Type: Application
    Filed: July 5, 2017
    Publication date: August 22, 2019
    Applicant: THE UNIVERSITY OF TOKYO
    Inventors: Kazuhiko ISHIHARA, Yoshihiro KIRITOSHI
  • Publication number: 20190256361
    Abstract: An object of the present invention is to provide an oligosilane production method with which a target oligosilane can be selectively produced. Oligosilanes can be efficiently produced at an improved selectivity for a target oligosilane by using, as a raw material, not only monosilane but also an oligosilane with a smaller number of silicon atoms than the target oligosilane or conversely an oligosilane with a larger number of silicon atoms than the target oligosilane.
    Type: Application
    Filed: June 6, 2017
    Publication date: August 22, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Kiyoshi NOMURA, Hiroshi UCHIDA, Yoshimitsu ISHIHARA, Yumiko NAKAJIMA, Shigeru SHIMADA, Kazuhiko SATO
  • Patent number: 10323132
    Abstract: Provided are a copolymer having enough biocompatibility to be used in a medical material application, and a method of forming a crosslinked body, which involves modifying a substrate surface with the copolymer so that the surface may be biocompatible. More specifically, a protein adsorption-suppressing effect and a cell adhesion-suppressing effect, which are features of a phosphorylcholine group, are imparted to the substrate surface. It has been found that the object is achieved by a copolymer containing a phosphorylcholine constitutional unit, a hydrophobic constitutional unit, and a photoreactive constitutional unit at a specific ratio.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: June 18, 2019
    Assignees: NOF Corporation, The University of Tokyo
    Inventors: Kazuhiko Ishihara, Yuuki Inoue, Kyoko Fukazawa, Masaru Matsuda, Satoshi Yamada, Tomozumi Noda
  • Publication number: 20190153137
    Abstract: Provided are a copolymer having biocompatibility sufficient for use in medical material applications, and a method of forming a crosslinked body, the method including imparting biocompatibility to a substrate surface through the use of the copolymer. More specifically, a protein adsorption-suppressing effect and a cell adhesion-suppressing effect, which are features of a phosphorylcholine group, are imparted to the substrate surface. It has been found that a copolymer containing a phosphorylcholine constitutional unit and a photoreactive constitutional unit, or a copolymer containing a phosphorylcholine constitutional unit, a photoreactive constitutional unit, and a hydrophobic constitutional unit can impart a protein adsorption-suppressing effect and a cell adhesion-suppressing effect to a substrate surface through a simple approach called photoirradiation.
    Type: Application
    Filed: June 28, 2017
    Publication date: May 23, 2019
    Applicants: NOF CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Kazuhiko ISHIHARA, Masaru MATSUDA, Tomozumi NODA, Satoshi YAMADA, Nobuyuki SAKAMOTO
  • Patent number: 10030283
    Abstract: Provided is a method for producing a surface-treated steel sheet for battery containers including: a first process of forming an iron-nickel alloy plating layer on at least one side of a steel sheet; a second process of forming a nickel plating layer on the iron-nickel alloy plating layer; and a third process of performing a thermal treatment after forming the nickel plating layer to form an iron-nickel alloy layer having an outermost surface, at which a content ratio of Fe atoms is 12 to 55% by atom, on an outermost layer by thermal diffusion. The invention makes it possible to provide the method for producing the surface-treated steel sheet for battery containers that can suppress the elution of iron inside the battery when being used for a battery container, whereby the service life of the battery can be extended and battery characteristics such as discharge characteristics can be improved.
    Type: Grant
    Filed: April 18, 2014
    Date of Patent: July 24, 2018
    Assignee: TOYO KOHAN CO., LTD.
    Inventors: Shinichirou Horie, Koh Yoshioka, Kazuhiko Ishihara
  • Publication number: 20180051140
    Abstract: Provided are a copolymer having enough biocompatibility to be used in a medical material application, and a method of forming a crosslinked body, which involves modifying a substrate surface with the copolymer so that the surface may be biocompatible. More specifically, a protein adsorption-suppressing effect and a cell adhesion-suppressing effect, which are features of a phosphorylcholine group, are imparted to the substrate surface. It has been found that the object is achieved by a copolymer containing a phosphorylcholine constitutional unit, a hydrophobic constitutional unit, and a photoreactive constitutional unit at a specific ratio.
    Type: Application
    Filed: March 2, 2016
    Publication date: February 22, 2018
    Applicants: THE UNIVERSITY OF TOKYO, NOF CORPORATION
    Inventors: Kazuhiko Ishihara, Yuuki Inoue, Kyoko Fukazawa, Masaru Matsuda, Satoshi Yamada, Tomozumi Noda
  • Patent number: 9887396
    Abstract: Provided is a surface-treated steel sheet for battery containers (100) that is obtained in such a manner that after iron-nickel alloy plating is performed on a steel sheet (10), a thermal treatment is performed and is characterized in that an outermost layer is an iron-nickel alloy layer (20), and the iron-nickel alloy layer (20) has an average crystal size of 1 to 8 ?m at the outermost surface thereof. The present invention makes it possible to provide the surface-treated steel sheet for battery containers that can suppress the elution of iron inside the battery when being used for a battery container, whereby the service life of the battery can be extended and battery characteristics such as discharge characteristics is improved, and to provide a battery container and a battery that can be obtained using the surface-treated steel sheet for battery containers.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: February 6, 2018
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Koh Yoshioka, Shinichirou Horie, Kazuhiko Ishihara
  • Publication number: 20160211489
    Abstract: Provided is a surface-treated steel sheet for battery containers (100) that is obtained in such a manner that after iron-nickel alloy plating is performed on a steel sheet (10), a thermal treatment is performed and is characterized in that an outermost layer is an iron-nickel alloy layer (20), and the iron-nickel alloy layer (20) has an average crystal size of 1 to 8 ?m at the outermost surface thereof. The present invention makes it possible to provide the surface-treated steel sheet for battery containers that can suppress the elution of iron inside the battery when being used for a battery container, whereby the service life of the battery can be extended and battery characteristics such as discharge characteristics is improved, and to provide a battery container and a battery that can be obtained using the surface-treated steel sheet for battery containers.
    Type: Application
    Filed: January 29, 2016
    Publication date: July 21, 2016
    Inventors: Koh YOSHIOKA, Shinichirou HORIE, Kazuhiko ISHIHARA
  • Publication number: 20160168657
    Abstract: Provided is a method for producing a surface-treated steel sheet for battery containers including: a first process of forming an iron-nickel alloy plating layer on at least one side of a steel sheet; a second process of forming a nickel plating layer on the iron-nickel alloy plating layer; and a third process of performing a thermal treatment after forming the nickel plating layer to form an iron-nickel alloy layer having an outermost surface, at which a content ratio of Fe atoms is 12 to 55% by atom, on an outermost layer by thermal diffusion. The invention makes it possible to provide the method for producing the surface-treated steel sheet for battery containers that can suppress the elution of iron inside the battery when being used for a battery container, whereby the service life of the battery can be extended and battery characteristics such as discharge characteristics can be improved.
    Type: Application
    Filed: April 18, 2014
    Publication date: June 16, 2016
    Inventors: Shinichirou HORIE, Koh YOSHIOKA, Kazuhiko ISHIHARA
  • Patent number: 9216241
    Abstract: An object is to provide a medical device having excellent antithrombotic and sliding characteristics, which can exert a cell adhesion inhibitory effect. A medical device comprising: a substrate capable of forming hydroxyl groups; and a biocompatible material layer laminated on the substrate at an appropriate position, wherein the hydroxyl groups are formed on a surface of the substrate at least at a required position by a surface treatment, while the biocompatible material layer is formed from a polymer containing phosphorylcholine groups, and wherein the substrate and the biocompatible material layer are joined via a binder layer formed from silica being covalently bonded with the hydroxyl groups and the biocompatible material, respectively.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: December 22, 2015
    Assignees: KYOCERA MEDICAL CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Masayuki Kyomoto, Kazuhiko Ishihara, Kozo Nakamura, Yoshio Takatori, Hiroshi Kawaguchi, Toru Moro
  • Patent number: 9192694
    Abstract: The object of the present invention is to provide a sliding member, a prosthesis and a method of producing the sliding member, which can suppress production of abrasive wear debris by suppressing friction of the sliding section, and also can maintain satisfactory mechanical characteristics in vivo. A sliding member comprising: a substrate 1 capable of forming hydroxyl groups; and a biocompatible material layer 4 laminated on appropriate sections of the substrate 1, wherein hydroxyl groups are formed on at least a required section of a surface of the substrate 1 by surface treating to form a surface-treated layer 2, while the biocompatible material layer 4 is formed from a polymer containing phosphorylcholine groups, and wherein the substrate 1 and the biocompatible material layer 4 are joined via a binder layer 3 formed from silica being covalently bonded with the hydroxyl groups and the biocompatible material, respectively.
    Type: Grant
    Filed: October 2, 2008
    Date of Patent: November 24, 2015
    Assignees: KYOCERA MEDICAL CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Masayuki Kyomoto, Kazuhiko Ishihara, Kozo Nakamura, Yoshio Takatori, Hiroshi Kawaguchi, Toru Moro
  • Patent number: 9175035
    Abstract: An object of the present invention is to provide, as a method for immobilizing a protein molecule, protein immobilization method and means in which orientation of a molecule to be immobilized can be controlled, the molecule can be stably immobilized without a complicated process and a chemical group used for immobilization does not affect the activity and the function of the protein. Specifically, the present invention relates to a method for immobilizing a molecule including the steps of forming a labeled molecule by attaching a label peptide sequence comprising a hydroxyl group-containing amino acid to a molecule; and bringing a molecule having a phenylboronic acid group into contact with the labeled molecule, to capture the labeled molecule by the molecule having a phenylboronic acid group.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: November 3, 2015
    Assignees: HITACHI, LTD., THE UNIVERSITY OF TOKYO
    Inventors: Tomohiro Konno, Kazuhiko Ishihara, Hirokazu Nishida
  • Patent number: 9138511
    Abstract: A bioabsorbable blend comprising poly(L-lactide) (PLLA) and a phosphorylcholine group-containing copolymer (PPCP) capable of enduring the mechanical strength of blood vessel walls and applicable for fabricating cardiovascular devices was developed. The blend acts as a scaffold to support blood vessel walls during vascular healing and undergoes biodegradation in vivo after vascular healing is complete. Furthermore, the blend can prevent the formation and adsorption of thrombi.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 22, 2015
    Assignees: SUNTECH Co., Ltd
    Inventors: Hyung-Il Kim, Kazuhiko Ishihara