Patents by Inventor Sigeru Asai

Sigeru Asai 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).

  • Optical fiber for transmission
    Patent number: 4274709
    Abstract: An optical fiber coated with a layer made of a mixture consisting essentially of from 5 to 95 percent by weight of nylon 11 or nylon 12 and, correspondingly, from 95 to 5 percent by weight of nylon copolymer.
    Type: Grant
    Filed: November 21, 1979
    Date of Patent: June 23, 1981
    Assignee: Daicel Ltd.
    Inventor: Sigeru Asai
  • Hot-melt adhesive composition and process employing same
    Patent number: 4141774
    Abstract: A hot-melt adhesive composition containing a methoxymethylated terpolymer prepared from the corresponding terpolymer that is soluble in lower alcohols and contains a higher nylon salt or an .omega.-amino acid, or a lactam, each of which has more than 10 carbon atoms, and wherein the methoxymethylation ratio of the nylon copolymer is in the range of 10 to 30%.
    Type: Grant
    Filed: June 16, 1977
    Date of Patent: February 27, 1979
    Assignee: Daicel Ltd.
    Inventors: Ken Ando, Minoru Kamosaki, Yoshinobu Ohya, Sigeru Asai
  • Hot stamp transfer press plate
    Patent number: 4053672
    Abstract: A hot stamp transfer press plate comprising a transfer medium on which a transfer layer has been applied in a desired pattern, said transfer layer consisting of hot stamp ink wherein there is employed, as the binder resin of the ink, methoxymethylated nylon copolymer obtained by N-methoxymethylation of an alcohol-soluble nylon copolymer containing a higher nylon salt, .omega.-amino acid or lactam, each of which has 10 or more carbon atoms.
    Type: Grant
    Filed: September 23, 1975
    Date of Patent: October 11, 1977
    Assignee: Daicel, Ltd.
    Inventors: Ken Ando, Minoru Kamosaki, Yoshinobu Ohya, Sigeru Asai
  • Paint composition dispersible in water and water base paint
    Patent number: 3992478
    Abstract: A paint composition dispersible in water is disclosed, characterized by comprising 100 parts by weight of a thermoplastic synthetic resin powder having an average particle diameter in the range of about 0.1 to 250 .mu., 0.01 to 3 parts by weight of an additive of sodium polyacrylate or polyacrylamide and 0 to 20 weight percent, based on the weight of sodium polyacrylate or polyacrylamide, of an acid substance.
    Type: Grant
    Filed: August 26, 1974
    Date of Patent: November 16, 1976
    Assignee: Daicel, Ltd.
    Inventors: Minoru Kamosaki, Sigeru Asai