Patents by Inventor Yoshio Amimoto

Yoshio Amimoto 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: 5576095
    Abstract: A water- and oil-repellent fiber formed from a synthetic resin composition which contains a fluorine-containing polymer having a repeating unit (a) having a perfluoroalkyl or perfluoroalkenyl group and an ether linkage gives a fabric having excellent water- and oil-repellency, excellent stain resistance and excellent feeling.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: November 19, 1996
    Assignee: Daikin Industries, Ltd.
    Inventors: Akihiko Ueda, Seiji Takubo, Yoshio Amimoto
  • Patent number: 5427127
    Abstract: A dish washing method includes a process for applying a sticking inhibitor to the surface of dishes in order to make it easy to remove food from the surface of the dishes. The sticking inhibitor is a compound having hydrophilic and hydrophobic groups. The compound is absorbed to the surfaces of the dishes by the hydrophilic groups, and is absorbed to food surfaces by the hydrophobic groups. The compound is a compound containing a fluoroalkyl group. Also, a dish washer has a reservoir for storing therein the sticking inhibitor and a passageway for joining the sticking inhibitor with a detergent.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: June 27, 1995
    Assignee: Daikin Industries, Ltd.
    Inventors: Munehiro Nogi, Koichiro Miyazaki, Seiji Takubo, Yoshio Amimoto, Ryutaro Ohashi
  • Patent number: 5329948
    Abstract: A dish washing method includes a process for applying a sticking inhibitor to the surface of dishes in order to make it easy to remove food from the surface of the dishes. The sticking inhibitor is a compound having hydrophilic and hydrophobic groups. The compound is absorbed to the surfaces of the dishes by the hydrophilic groups, and is absorbed to food surfaces by the hydrophobic groups. The compound is a compound containing a fluoroalkyl group. Also, a dish washer has a reservoir for storing therein the sticking inhibitor and a passageway for joining the sticking inhibitor with a detergent.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: July 19, 1994
    Assignee: Daikin Industries, Ltd.
    Inventors: Munehiro Nogi, Koichiro Miyazaki, Seiji Takubo, Yoshio Amimoto, Ryutaro Ohashi
  • Patent number: 5254754
    Abstract: An adduct of an unsaturated alcohol and an iodinated fluoroalkane is produced at a high conversion and high yield by reacting the unsaturated alcohol and the iodinated fluoroalkane in the presence of a radical catalyst and at least one additive selected from the group consisting of water, basic compounds, metal oxides, silver compounds and epoxy compounds.
    Type: Grant
    Filed: July 14, 1991
    Date of Patent: October 19, 1993
    Assignee: Daikin Industries Ltd.
    Inventors: Yoshio Amimoto, Masaru Hirai, Sueyoshi Ishikawa, Tatsuya Ohtsuka
  • Patent number: 5242487
    Abstract: A water- and oil-repellent composition which comprises a water- and oil-repellent having a fluoroalkyl group, and a glycerol compound selected from the group consisting of glycerol, an ester derivative of glycerol, an ether derivative of glycerol and polyglycerol having a melting point of lower than 70.degree. C., imparts good water- and oil-repellency and good feeling to a fabric.
    Type: Grant
    Filed: August 4, 1992
    Date of Patent: September 7, 1993
    Assignee: Daikin Industries Ltd.
    Inventors: Yoshio Amimoto, Takashi Enomoto, Kazunori Hayashi
  • Patent number: 5143991
    Abstract: A copolymer comprising (a) an acrylate or methacrylate having a fluoroalkyl group, (b) a polyalkylene glycol acrylate or methacrylate, (c) an acrylate or methacrylate having a hydroxyl group, and (d) at least one compound selected from the group consisting of alkyl acrylates, alkyl methacrylates and butadiene, which can impart durable water- and oil- repellency and soil-releasability to fabrics.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: September 1, 1992
    Assignee: Daikin Industries, Ltd.
    Inventors: Yoshio Amimoto, Yuko Hirata, Masaru Hirai, Akihiko Ueda
  • Patent number: 5055538
    Abstract: A fluorine-containing copolymer comprising(a) 40 to 90% by weight of repeating units derived from a polymerizable compound having a C.sub.4 -C.sub.20 perfluoroalkyl group,(b) 5 to 50% by weight of repeating units derived from at least one unsaturated ester selected from the group consisting of stearyl acrylate and stearyl methacrylate,(c) 5 to 50% by weight of repeating units derived from at least one monomer selected from the group consisting of alkyl acrylate or methacrylate having 2 to 8 carbon atoms in the alkyl group, cyclohexylacrylate and cyclohexylmethacrylate, which is useful as an active component of a water- and oil-repellent.
    Type: Grant
    Filed: June 11, 1990
    Date of Patent: October 8, 1991
    Assignee: Daikin Industries Ltd.
    Inventors: Yoshio Amimoto, Masayoshi Shinjo, Takashi Enomoto, Kazunori Hayashi
  • Patent number: 4795793
    Abstract: A copolymer comprising 50 to 90% by weight of the constituting unit derived from (a) a polymerizable compound having a perfluoroalkyl group of 4 to 20 carbon atoms, 10 to 50% by weight of the constituting unit derived from (b) cyclohexyl or benzyl ester of acrylic acid or methacrylic acid and 0.1 to 10% by weight of the constituting unit derived from (c) at least one selected from the group consisting of polyethylene glycol diacrylate of the formulaCH.sub.2 .dbd.CRCOO(CH.sub.2 CH.sub.2 O)rCOCR.dbd.CH.sub.2wherein R is hydrogen atom or methyl, r is an integer of 1 to 50, and N-methylolacrylamide. The copolymer is useful as an oil and water repellent composition.
    Type: Grant
    Filed: December 2, 1987
    Date of Patent: January 3, 1989
    Assignee: Daikin Industries Ltd.
    Inventors: Yoshio Amimoto, Masayoshi Shinjo, Kazunori Hayashi, Takashi Enomoto
  • Patent number: 4739059
    Abstract: A novel amine amide of the formula: ##STR1## wherein the various substituents are defined hereinbelow. The compounds are useful as thickening agents, disoxidation catalysts and monomers.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: April 19, 1988
    Assignee: Daikin Industries Ltd.
    Inventors: Yohnosuke Ohsaka, Yoshio Amimoto, Yoshio Negishi
  • Patent number: 4728707
    Abstract: A water- and oil-repellent of a copolymer which comprises repeating units derived from (a) a monomeric compound having at least a perfluoroalkyl or perfluoroalkenyl group and an acrylate or methacrylate group and (b) a methacrylate, a homopolymer of which has a glass transition temperature of not lower than 115.degree. C., which has good resistance to dry cleaning and resistance to slippage.
    Type: Grant
    Filed: March 12, 1986
    Date of Patent: March 1, 1988
    Assignee: Daikin Industries Ltd.
    Inventors: Yoshio Amimoto, Hirokazu Aoyama, Akira Chida
  • Patent number: 4683289
    Abstract: A novel polyaminoamide of the formula: ##STR1## wherein R.sub.m and R.sub.m ' are, the same or different, a hydrogen atom or a monovalent organic group and A.sub.m is a divalent organic group, or R.sub.m and/or R.sub.m ' form a cyclic group together with A.sub.m and the nitrogen atom to which they are bonded. m changes from 1 to p (where p is a positive integer) and n.sub.m is a positive integer, which can be prepared by reacting a 2,2,3,3-tetrafluorooxetane of the formula: ##STR2## with m kind(s) of diamine(s) of the formula: ##STR3## wherein m is the same as defined above.
    Type: Grant
    Filed: October 11, 1985
    Date of Patent: July 28, 1987
    Assignee: Daikin Industries Ltd.
    Inventors: Yohnosuke Ohsaka, Yoshio Amimoto, Yoshio Negishi
  • Patent number: 4379901
    Abstract: A polyfluoroallyl ether of the formula: ##STR1## wherein each X, which is the same or different, is a chlorine atom or a fluorine atom and each Y, which is the same or different, is a hydrogen atom, a chlorine atom or a fluorine atom, which is useful as a modifier for polymers.
    Type: Grant
    Filed: September 28, 1981
    Date of Patent: April 12, 1983
    Assignee: Daikin Kogyo Co., Ltd.
    Inventors: Yoshio Amimoto, Masayoshi Tatemoto