Patents by Inventor Eichiro Ueno

Eichiro Ueno 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).

  • Process for printing fiber products of acrylic fiber blends
    Patent number: 4021196
    Abstract: Fiber products of a blend of an acrylic fiber substantially free of acid dye sites with an acid dyeable fiber are printed with a dye paste containing a monosulfonic acid dye having an inorganicity/organicity ratio less than 4 to dye both fibers of the blend uniformly. As an alternative an additional acid dye outside the specific class designated may be used to augment the dyeing of the acid dyeable fiber.
    Type: Grant
    Filed: December 13, 1973
    Date of Patent: May 3, 1977
    Assignee: American Cyanamid Company
    Inventors: Eichiro Ueno, Hideo Kawasaki, Shozo Shigita
  • Printing process for acrylic fibers
    Patent number: 3976425
    Abstract: A process for printing acrylic fiber substantially free of acid dye sites with a printing paste containing a monosulfonic acid dye having an inorganicity/organicity ratio of less than about 4 and thereafter steaming the printed fiber to fix the dye is disclosed.
    Type: Grant
    Filed: December 13, 1973
    Date of Patent: August 24, 1976
    Assignee: American Cyanamid Company
    Inventors: Eichiro Ueno, Hideo Kawasaki, Syozo Shigita
  • Process for printing a fiber product containing acrylic fibers and cellulosic fibers
    Patent number: 3961883
    Abstract: The invention is concerned with printing fabrics containing (a) acrylic fibers and/or modacrylic fibers having acidic dyesites but free of basic dyesites and (b) cellulosic fibers with a printing paste containing (A) an acid dye containing a single sulfonic acid group and having an inorganicity/organicity ratio below 4 for dyeing the acrylic or modacrylic fibers and (B) a direct or reactive dye for dyeing the cellulosic fibers.
    Type: Grant
    Filed: October 31, 1973
    Date of Patent: June 8, 1976
    Assignee: American Cyanamid Company
    Inventors: Eichiro Ueno, Hideo Kawasaki, Syozo Shigita
  • Printing process
    Patent number: 3959836
    Abstract: In the printing of fiber assemblages containing acrylic fibers dyeable with cationic dyes and blend fibers dyeable with anionic dyes, there is disclosed a process for printing with a printing paste containing a cationic and a anionic dye which comprises preparing the printing paste so as to contain specific amounts of lignin sulfonic acid or a soluble salt thereof, printing the fiber assemblage with said paste, and thereafter steaming the printed assemblage to fix the dyes thereon.
    Type: Grant
    Filed: December 13, 1973
    Date of Patent: June 1, 1976
    Assignee: American Cyanamid Company
    Inventors: Eichiro Ueno, Hideo Kawasaki, Syozo Shigita