Patents by Inventor Toshimi Inai

Toshimi Inai 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).

  • Undercoat composition
    Patent number: 5178958
    Abstract: An undercoat composition for a powder coating of a heat-resistant resin on a metal substrate at a high coating temperature wherein the composition includes a specific imide prepolymer.
    Type: Grant
    Filed: October 11, 1990
    Date of Patent: January 12, 1993
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshimi Inai, Naofumi Imahigashi, Koichi Karukaya, Koji Motoi
  • Undercoat composition and a metal substrate coated with a resin composition
    Patent number: 5041335
    Abstract: There are provided an undercoat composition with excellent adhesiveness to both a resin coating layer and a metal layer, and a metal substrate coated with a resin composition. The undercoat composition and the resin-coated metal substrate offer excellent hot-water resistance and chemical resistance.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: August 20, 1991
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshimi Inai, Koichi Karukaya, Masao Ikeda, Kazuyoshi Yamamoto
  • Method for coating a metal substrate by the use of a resin composition
    Patent number: 4965102
    Abstract: There is provided a method for coating a metal substrate by the use of a polyvinylidene fluoride resin composition. The method comprises forming a coating film made of a melted resin composition on the surface of an undercoated metal substrate at a temperature of from 200.degree. to 350.degree. C., said resin composition containing a major amount of polyvinylidene fluoride and from 5 to 40% by weight of an inorganic filler based on the total weight of the resin composition; and precooling said coating film to a temperature T.sub.A and then keeping said coating film at the temperature T.sub.A for at least one minute, wherein said temperature T.sub.A (.degree.C.) satisfies the inequality:T.sub.C -10.degree.C..ltoreq.T.sub.A .ltoreq.T.sub.C +10.degree.C.,said T.sub.C (.degree.C.) being the crystallization temperature for the polyvinylidene fluoride.
    Type: Grant
    Filed: February 24, 1989
    Date of Patent: October 23, 1990
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Toshimi Inai, Koji Motoi
  • Apparatus for producing composite pipes
    Patent number: 4482420
    Abstract: An apparatus for producing a composite pipe having a desired wall thickness by using an endless steel belt as a mold which moves axially while rotating in the circumferential direction of a mandrel. In this apparatus, a thickness regulating device spaced a predetermined distance from the outside surface of the endless steel belt is used to adjust the wall thickness accurately to the desired value. Examples of the thickness regulating device are a cylinder roll, a taper roll, and a conveyor belt.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: November 13, 1984
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hisao Morimoto, Toshimi Inai, Takashi Shimizu
  • Method for producing composite pipes
    Patent number: 4412882
    Abstract: A novel method for producing a composite pipe having a desired wall thickness by using an endless steel belt as a mold which moves axially while rotating in the circumferential direction of a mandrel. In this method, a thickness regulating device spaced a predetermined distance from the outside surface of the endless steel belt is used to adjust the wall thickness accurately to the desired value. Examples of the thickness regulating device are a cylinder roll, a taper roll, and a conveyor belt.
    Type: Grant
    Filed: February 17, 1982
    Date of Patent: November 1, 1983
    Assignee: Sekisui Kagaku Kogyo Kabushiki Kaisha
    Inventors: Hisao Morimoto, Toshimi Inai, Takashi Shimizu