Patents by Inventor Takahiro Kohsaka

Takahiro Kohsaka 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).

  • Flame-retardant fabric for ink-jet recording and process for manufacturing the same
    Patent number: 6670001
    Abstract: A sufficiently flame-retardant fabric for ink-jet recording with an ink accepting layer on its one side at least, the ink acceptability (ink holding capability) of which is the same as that of its non-flame-retardant counterpart, allowing the fabric to render highly deep/brilliant shade and sharp color images. The flame-retardant fabric for ink-jet recording includes a flame retarded fiber substrate with an ink accepting layer on its one side at least, which is made up of a 3-12 &mgr;m-thick top sub-layer and a bottom sib-layer with a flame retarding agent contained only in the bottom sub-layer wherein the flame retarding agent has its active ingredient applied to the substrate in an aqueous dispersion, accounting for 4 to 30% of the entire ink accepting layer by weight.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: December 30, 2003
    Assignee: Seiren Co., Ltd.
    Inventor: Takahiro Kohsaka
  • Method of printing a polyamide structure, such a method based on an inkjet system and an inkset for such a system
    Patent number: 6485551
    Abstract: A method of printing a polyamide structure using two or more of water-soluble dye with an inorganicity/organicity value of 1 to 7 selected so that the ones with the largest and smallest inorganicity/organicity values show a difference of 2 or below between their two such values, to allow the polyamide structure to be printed with no uneven color, high color reproducibility and excellent ink bleeding prevention.
    Type: Grant
    Filed: August 22, 2000
    Date of Patent: November 26, 2002
    Assignees: Seiren Co., Ltd., Nippon Kayaku Kabushiki Kaisha
    Inventors: Takahiro Kohsaka, Eiichi Ogawa
  • Flame-retardant fabric for ink-jet recording and process for manufacturing the same
    Publication number: 20020164462
    Abstract: It is an object of the present invention to provide a sufficiently flame-retardant fabric for inkjet recording with an ink accepting layer on its one side at least, the ink acceptability (ink holding capability) of which is the same as that of its non-flame-retardant counterpart, allowing it to render highly deep/brilliant shade and sharp color images. A flame-retardant fabric for ink-jet recording, consisting of a flame retarded fiber substrate with an ink accepting layer on its one side at least, which is made up of a 3-12 &mgr;m-thick top sub-layer and a bottom sub-layer with a flame retarding agent contained only in the bottom sub-layer, wherein said flame retarding agent has its active ingredient applied to the substrate in an aqueous dispersion, accounting for 4 to 30% of the entire ink accepting layer by weight.
    Type: Application
    Filed: February 25, 2002
    Publication date: November 7, 2002
    Inventor: Takahiro Kohsaka