Patents by Inventor Akihiro Itou

Akihiro Itou 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).

  • Method of producing formed product of fiber-reinforced composite material and the formed product
    Publication number: 20050253294
    Abstract: A method is presented for stably, highly, and efficiently producing a three-dimensional molded article of a fiber-reinforced composite material having a three-dimensional shape, uniform quality, and free from wrinkles by press molding a plurality of prepregs cut out in a predetermined shape and also to a molded article.
    Type: Application
    Filed: August 20, 2003
    Publication date: November 17, 2005
    Inventors: Tsuneo Takano, Kiharu Numata, Akihiro Itou, Masato Taguchi, Junnichi Muramatsu
  • Epoxy compound, preparation method thereof, and use thereof
    Publication number: 20050069715
    Abstract: The present invention relates to an epoxy compound, represented by a general formula (I), which is solid at ordinary temperature, has extremely low melt viscosity and has excellent curing property and which can provide a cured product which is excellent in mechanical strength, heat resistance, and moisture resistance. It also relates to a preparation method of the epoxy compound, an epoxy resin composition, and a cured product thereof. The epoxy compound is represented by the following general formula (I): (wherein R1-R10 each represent hydrogen atom or alkyl group having 1-6 carbon atoms, and n represents an integer of 0 or more).
    Type: Application
    Filed: August 27, 2004
    Publication date: March 31, 2005
    Inventors: Atsuhito Hayakawa, Akihiro Itou
  • Granular epoxy resin, production method thereof, and granular epoxy resin package
    Publication number: 20040202864
    Abstract: A granular epoxy resin is made by pulverizing an epoxy resin which is solid at ordinary temperature and can exhibit excellent fluidity during molding because of its low melt viscosity in which the total content of components having a molecular weight of 500 or less among components of n1=0 in the following general formula (1) and/or components of n2=0 in the following general formula (2) is 50% by mass or more of the entire epoxy resin, or, the total content of components having a molecular weight 400 or less among components of n1=0 in the following general formula (1) and/or components of n2=0 in the following general formula (2) is 20% by mass or more of the entire epoxy resin. The content of low molecular weight compounds having a molecular weight 200 or less in the granular epoxy resin is 0.3% by mass or less. The granular epoxy resin allows easy handling because it hardly causes blocking during storage and transportation.
    Type: Application
    Filed: March 5, 2004
    Publication date: October 14, 2004
    Applicant: JAPAN EPOXY RESINS CO., LTD.
    Inventors: Yasuyuki Murata, Atsuhito Hayakawa, Akihiro Itou
  • Flame retardant epoxy resin composition, and prepreg and fiber-reinforced composite materials made by using the composition
    Publication number: 20040034127
    Abstract: A flame retardant epoxy resin composition containing (A) a phenolic novolak type epoxy resin including a phenolic novolak type epoxy resin of the following formula (1) and/or formula (2) in a total of at least 50 wt %: 1
    Type: Application
    Filed: June 18, 2003
    Publication date: February 19, 2004
    Inventors: Masato Taguchi, Yasushi Suzumura, Tadayoshi Saitou, Akihiro Itou