Patents by Inventor Tomohisa Moriya

Tomohisa Moriya 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).

  • Material having a damping property and masterbatch pellets thereof
    Patent number: 6300401
    Abstract: The disclosure described a material having a damping property, comprising 100 parts by weight of a binder resin composed of 85 to 99% by weight of at least one base resin selected from the group consisting of polypropylenes, polystyrenes, acrylonitrile-butadiene-styrene copolymers, polycarbonates, polyphenylene ethers and modified polyphenylene ethers and 1 to 15% by weight of styrene-isoprene-styrene block copolymer, and 1 to 20 parts by weight of iron compound particles.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: October 9, 2001
    Assignee: Toda Kogyo Corporation
    Inventors: Yasuhiko Fujii, Shigeru Takaragi, Tetsuro Toda, Tomohisa Moriya
  • Material having a damping property and masterbatch pellets therefor
    Patent number: 5977235
    Abstract: The disclosure described a material having a damping property, comprising 100 parts by weight of a binder resin composed of 85 to 99% by weight of at least one base resin selected from the group consisting of polypropylenes, polystyrenes, acrylonitrile-butadiene-styrene copolymers, polycarbonates, polyphenylene ethers and modified polyphenylene ethers and 1 to 15% by weight of styrene-isoprene-styrene block copolymer, and 1 to 20 parts by weight of iron compound particles.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: November 2, 1999
    Assignee: Toda Kogyo Corporation
    Inventors: Yasuhiko Fujii, Shigeru Takaragi, Tetsuro Toda, Tomohisa Moriya
  • Process for producing acicular goethite particles and acicular magnetic iron oxide particles
    Patent number: 5399278
    Abstract: Disclosed herein are a process for producing acicular goethite particles comprising the steps of: blowing an oxygen-containing gas into a ferrous salt reaction solution containing colloidal ferrous hydroxide or iron-containing colloidal precipitates which is obtained by reacting an aqueous ferrous salt solution with less than one equivalent of an aqueous alkali hydroxide solution and/or an aqueous alkali carbonate solution based on Fe.sup.2 + in said aqueous ferrous salt solution so as to oxidize said colloidal ferrous hydroxide or iron-containing colloidal precipitates and to produce acicular goethite nucleus particles, adding to the resultant aqueous ferrous salt reaction solution containing said acicular goethite nucleus particles not less than one equivalent of an aqueous alkali carbonate solution based on Fe.sup.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: March 21, 1995
    Assignee: Toda Kogyo Corp.
    Inventors: Katsumi Yamashita, Tosiharu Harada, Haruki Kurokawa, Kazuhisa Inaba, Hideaki Sadamura, Tomohisa Moriya, Junichi Kawano
  • Acicular magnetic iron oxide particles
    Patent number: 5294492
    Abstract: Disclosed herein is a process for producing acicular magnetic iron oxide particles comprising the steps of: mixing an aqueous dispersion of acicular magnetic iron oxide particles with an aqueous solution of a Co salt and an alkaline aqueous solution, or an aqueous solution of a Co salt, an aqueous solution of an Fe(II) salt and and an alkaline aqueous solution; and heat-treating the alkaline suspension solution obtained at 50.degree. to 100.degree. C.
    Type: Grant
    Filed: July 2, 1991
    Date of Patent: March 15, 1994
    Assignee: Toda Kogyo Corp.
    Inventors: Hiroshi Oka, Kazuaki Kouziro, Toshitada Shigemura, Tomohisa Moriya, Katsumi Yamashita, Kazushi Takama, Takanobu Uemoto, Kazuhiro Fujita