Patents by Inventor Koji Kigawa

Koji Kigawa 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: 20230193102
    Abstract: A high temperature low outgas thermal interface material is provided. The thermal interface material includes a plurality of heat conducting particles dispersed within a fluorine containing fluid such as perfluoropolyether. The high temperature low outgas thermal interface material provides thermal conductivity between a heat source and a heat sink at temperatures greater than 200° C.
    Type: Application
    Filed: May 12, 2021
    Publication date: June 22, 2023
    Applicants: DAIKIN AMERICA, INC., DAIKIN INDUSTRIES, LTD.
    Inventors: Kiyomi TACHIHARA, Yoshiaki HONDA, Hisashi MITSUHASHI, Koji KIGAWA
  • Publication number: 20190365604
    Abstract: There is provided a container or an equipment having low-protein adsorption properties, to be used for administering, storing, conveying or transporting protein or a composition including protein, or for producing protein or a composition including protein. A container or an equipment for producing protein or a composition including protein, wherein the surface of the container or the equipment in contact with protein or a composition including protein is formed of a fluororesin which is at least one fluororesin selected from a tetrafluoroethylene-hexafluoropropylene-based copolymer and a tetrafluoroethylene-perfluoroalkylvinyl ether-based copolymer, which has a melting point of 320° C. or less and which has a total number of non-fluorinated group terminals and —CF2H group terminals in the fluororesin of 70 or less per 1×106 carbon atoms, has remarkable low-protein adsorption properties.
    Type: Application
    Filed: December 21, 2017
    Publication date: December 5, 2019
    Applicants: Daikin Industries, Ltd., Otsuka Pharmaceutical Factory, Inc.
    Inventors: Kozue KOMAZAWA, Tatsuya HIGUCHI, Koji KIGAWA, Kazuaki OBATA, Takayuki DEMPO, Masuhiro NISHIMURA
  • Patent number: 7842390
    Abstract: Chain end functionalized fluoropolymers are disclosed exhibiting good chemical reactivity high breakdown electric field (E>100 MV/m) and high dielectric constants (i.e., ?>10). The polymers can be prepared by functional initiators and from a variety of fluoromonomers including vinylidene difluoride together with one or more additional monomers. The polymers can be combined with other dielectric materials to form composites having uniform composition and morphology.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: November 30, 2010
    Assignees: The Penn State Research Foundation, Daikin America, Inc.
    Inventors: Tze-Chiang Chung, Zhicheng Zhang, Shangtao Chen, Katsuyoshi Kubo, Koji Kigawa
  • Publication number: 20100208180
    Abstract: A non-stretched, negative birefringent copolyester film, which has been solution cast from toluene and/or MIBK and mixtures of these with other solvents on a substrate, and has a ?n? of >0.02 and a DP between 0.90 and 1.10.
    Type: Application
    Filed: January 12, 2010
    Publication date: August 19, 2010
    Inventors: Frank W. Harris, Limin Sun, Dong Zhang, Zhikuan Lu, John D. Harvey, Koji Kigawa
  • Publication number: 20090046274
    Abstract: Light scattering processes are employed to measure molecular weight and related characteristics of polymeric materials, including without limitation refractory fluoropolymers. The processes utilize a pressurized cell and a fluid under pressure to solubilize the polymeric materials and to enable light scattering measurements to be performed.
    Type: Application
    Filed: July 22, 2008
    Publication date: February 19, 2009
    Inventors: Mark A. McHugh, Andrei F. Kostko, Koji Kigawa, Katsuyoshi Kubo
  • Publication number: 20080081195
    Abstract: Chain end functionalized fluoropolymers are disclosed exhibiting good chemical reactivity high breakdown electric field (E>100 MV/m) and high dielectric constants (i.e., ?>10). The polymers can be prepared by functional initiators and from a variety of fluoromonomers including vinylidene difluoride together with one or more additional monomers. The polymers can be combined with other dielectric materials to form composites having uniform composition and morphology.
    Type: Application
    Filed: October 3, 2006
    Publication date: April 3, 2008
    Inventors: Tze-Chiang Chung, Zhicheng Zhang, Shangtao Chen, Katsuyoshi Kubo, Koji Kigawa
  • Patent number: 6335164
    Abstract: A method for targeting, enriching, detecting and isolating a double-stranded nucleic acid target sequence by adding heterologous probes to the reaction system along with the reduced amount of homologous probes in the process of homologous pairing and/or strand exchange between the homologous probe and the target sequence in the presence of a RecA-like recombinase.
    Type: Grant
    Filed: May 18, 1999
    Date of Patent: January 1, 2002
    Assignee: Daikin Industries, Ltd.
    Inventors: Koji Kigawa, Mikayo Yamanaka, Kayo Kusumi, Eli Mukai, Kazuaki Obata
  • Patent number: 5965361
    Abstract: A method for detecting the presence of a double-stranded target nucleic acid sequence contained in fixed cells or cell structures is provided. The method includes the steps of forming the fixed cells or cell structures by fixing cells or cell structures so as to allow a nucleic acid probe to enter, and forming a probe/RecA complex in which a single-stranded probe and RecA protein are stably bound to each other. The probe/RecA complex is allowed to react with the double-stranded target nucleic acid sequence to bind thereto under conditions in which the double-stranded target nucleic acid sequence is not denatured, and by detecting the RecA protein included in the probe/RecA complex, the presence of the double-stranded target nucleic acid sequence is detected.The invention provides a diagnostic method by which the position of a specific gene or its regulatory region in a chromosome and the presence of a nucleic acid sequence derived from virus can be measured or visualized with high sensitivity and with ease.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: October 12, 1999
    Assignee: Daikin Industries, Ltd.
    Inventors: Koji Kigawa, Mikayo Yamanaka, Kayo Kihara, Eli Mukai, Kazuaki Obata