Patents by Inventor Chiaki Ohama

Chiaki Ohama 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: 8076385
    Abstract: A flame retardant aqueous liquid composition containing water, guanidine sulfamate, a citric acid compound including a metal salt of citric acid, and a water soluble polymer. A flame retardant polyurethane foam is produced by a process including the steps of providing a mixture of the above flame retardant aqueous liquid composition with a polyol and an isocyanate, and reacting the mixture in the presence of a catalyst.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: December 13, 2011
    Assignee: Nankyo Efnica Co., Ltd.
    Inventor: Chiaki Ohama
  • Publication number: 20100093882
    Abstract: A flame retardant aqueous liquid composition containing water, guanidine sulfamate, a citric acid compound including a metal salt of citric acid, and a water soluble polymer. A flame retardant polyurethane foam is produced by a process including the steps of providing a mixture of the above flame retardant aqueous liquid composition with a polyol and an isocyanate, and reacting the mixture in the presence of a catalyst.
    Type: Application
    Filed: December 15, 2009
    Publication date: April 15, 2010
    Applicant: Nankyo Efnica CO., LTD.
    Inventor: CHIAKI OHAMA
  • Patent number: 5703152
    Abstract: An aqueous composition or a resin composition is disclosed which can capture bad odor substances such as ammonia, hydrogen sulfide, mercaptan and acetic acid.These compositions are characterized by containing an iron (II) compount, a chelating agent and a porous substance. The resin compositions include a paint composition, an ink composition and a resin composition for molding.
    Type: Grant
    Filed: August 9, 1995
    Date of Patent: December 30, 1997
    Assignee: Minato Company, Ltd.
    Inventor: Chiaki Ohama
  • Patent number: 5436268
    Abstract: Disclosed are processes for germ-destroying air, water and food, including a germ-destroying step using an isothiocyanic acid ester, germicidal fibers and plastic products and processes for preparing the germicidal fibers and plastic products, fumigants and fumigating processes, as well as germicidal gas composition containing an isothiocyanic acid ester, a process for the preparation thereof and an apparatus for use with the process therefor.
    Type: Grant
    Filed: June 15, 1993
    Date of Patent: July 25, 1995
    Assignee: The Green Cross Corporation
    Inventors: Chiaki Ohama, Keisuke Kato
  • Patent number: 5246663
    Abstract: An isothiocyanate vapor-generating agent containing a solution of an isothiocyanate dissolved in an oily liquid having a vapor pressure of 2 mmHg or less at 30.degree. C. A germ-desroying treatment method using vapors of an isothiocyanate and a germ-destroying treatment apparatus are also disclosed.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: September 21, 1993
    Inventors: Chiaki Ohama, Keisuke Kato
  • Patent number: 4745129
    Abstract: An aqueous solution or solid substance contains divalent iron ions and L-ascorbic acid. The L-ascorbic acid is present in an amount of 2.0 parts by weight or more per 100 parts by weight of the divalent iron ions. The aqueous solution or solid substance can be used advantageously as deodorants, germicides, foods freshness preserving agents, water treatment agents or the like.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: May 17, 1988
    Assignee: Technology and Minato Sangyo Co. Ltd.
    Inventors: Yoshikatsu Ikari, Shoichiro Yokoyama, Chiaki Ohama, Ryosuke Fukui
  • Patent number: 4670288
    Abstract: A chemically active composition containing divalent iron ions, wherein an iron (II) compound, ascorbic acid and or citric acid and alum are contained and the ratio between the divalent iron ions in the iron (II) compound and ascorbic acid or citric acid is between 1:0.02 and 0.30 (in the case of ascorbic acid) or 1:0.01 and 0.80 (in the case of citric acid) by weight ratio. The composition is applied in the form of an aqueous solution or solid matter as a deodorant, freshness-preserving agent for foods, growth promoting agent for plants and flame retardant for burnable materials. Not only uni-functional materials can be obtained but also multi-functional materials.
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: June 2, 1987
    Assignees: Director-General of Agency of Industrial Science and Technology, Minato Sangyo Co., Ltd.
    Inventors: Yoshikatsu Ikari, Shoichiro Yokoyama, Chiaki Ohama, Ryosuke Fukui