Patents by Inventor Masahiro Nakazaki

Masahiro Nakazaki 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).

  • Method for coloring cellulose fiber and colored cellulose fiber obtained thereby
    Patent number: 7481848
    Abstract: A method for producing a colored cellulose fiber, comprising: a step (1) of introducing a carboxylic group or a sulfonic acid group into cellulose fiber, and a step (2) of treating the cellulose fiber having the carboxylic group or the sulfonic acid group introduced with an aromatic derivative having one or more hydroxyl groups and a metal salt simultaneously or separately, and a colored cellulose fiber produced by the same method.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: January 27, 2009
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Masahiro Nakazaki, Kunihiro Ohshima, Susumu Katsuen, Atsushi Igami
  • Coloring method of tangible matter having polyamide bond and tangible matter colored by such method
    Patent number: 7476263
    Abstract: A coloring method of a tangible matter having a polyamide bond, characterized in that the tangible matter having a polyamide bond is treated with an aqueous solution containing an aromatic derivative having one or more hydroxyl groups and a metal salt at a temperature of 40° C. or more, and a polyamide tangible matter colored by such a method.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: January 13, 2009
    Assignees: Kurashiki Boseki Kabushiki Kaisha, Fukuoka Prefectural Government
    Inventors: Masahiro Nakazaki, Kunihiro Ohshima, Kiyoshi Donowaki, Kentaro Kawamura
  • Coloring method of tangible matter having polyamide bond and tangible matter colored by such method
    Publication number: 20070089247
    Abstract: A coloring method of a tangible matter having a polyamide bond, characterized in that the tangible matter having a polyamide bond is treated with an aqueous solution containing an aromatic derivative having one or more hydroxyl groups and a metal salt at a temperature of 40° C. or more, and a polyamide tangible matter colored by such a method.
    Type: Application
    Filed: November 8, 2004
    Publication date: April 26, 2007
    Applicants: Kurashiki Boseki Kabushiki Kaisha, Fukuoka Prefectural government
    Inventors: Masahiro Nakazaki, Kunihiro Ohshima, Kiyoshi Donowaki, Kentaro Kawamura
  • Method for coloring cellulose fiber and colored cellulose fiber obtained thereby
    Publication number: 20070033741
    Abstract: A method for producing a colored cellulose fiber, comprising: a step (1) of introducing a carboxylic group or a sulfonic acid group into cellulose fiber, and a step (2) of treating the cellulose fiber having the carboxylic group or the sulfonic acid group introduced with an aromatic derivative having one or more hydroxyl-groups and a metal salt simultaneously or separately, and a colored cellulose fiber produced by the same method.
    Type: Application
    Filed: November 8, 2004
    Publication date: February 15, 2007
    Applicant: KURASHIKI BOSEKI KABUSHIKI KAISHA
    Inventors: Masahiro Nakazaki, Kunihiro Ohshima, Susumu Katsuen, Atsushi Igami