Patents by Inventor Takuma TAKAGAWA

Takuma TAKAGAWA 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).

  • Patent number: 10696871
    Abstract: A pressure-sensitive adhesive transfer tape that may have on one surface of a release substrate made of paper or a plastic film, a pressure-sensitive transfer layer having an adhesion inhibiting layer and an adhesive layer, wherein the adhesion inhibiting layer and the adhesive layer are successively stacked on one another. The adhesion inhibiting layer may prevent the adhesive layer formed on one adherend from being in contact with another adherend to weaken the adhesion between the one and another adherends, enabling the one and another adherends to be easily separated from each other. With the passage of time after being put on one another, the adhesion inhibiting layer may migrate to another adherend, so that the adherend is in contact with the adhesive layer, exhibiting strong adhesion properties between the adherends.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: June 30, 2020
    Assignee: Tombow Pencil Co., Ltd.
    Inventors: Noboru Yamada, Tatsumi Uchida, Toshitake Murakami, Takuma Takagawa, Shuhei Sasaki
  • Publication number: 20190292413
    Abstract: To provide an adhesive composition for stationery capable of forming an adhesive layer having a good glue-cutting property while suppressing an increase in manufacturing cost and a laminate using the adhesive composition. Carbon fibers having an aspect ratio in the range of 6 to 30 were compounded in an adhesive component, such as an acrylic resin, to give an adhesive composition for stationery. The adhesive composition is applied onto one surface of a base material 1, such as a plastic film or paper, to form an adhesive layer 2, and thus a laminate 10, such as a glue tape, a seal, and a label, is obtained.
    Type: Application
    Filed: February 27, 2019
    Publication date: September 26, 2019
    Inventors: Hiroo FUKUNAGA, Takuma TAKAGAWA
  • Publication number: 20180282587
    Abstract: A pressure-sensitive adhesive transfer tape that may have on one surface of a release substrate made of paper or a plastic film, a pressure-sensitive transfer layer having an adhesion inhibiting layer and an adhesive layer, wherein the adhesion inhibiting layer and the adhesive layer are successively stacked on one another. The adhesion inhibiting layer may prevent the adhesive layer formed on one adherend from being in contact with another adherend to weaken the adhesion between the one and another adherends, enabling the one and another adherends to be easily separated from each other. With the passage of time after being put on one another, the adhesion inhibiting layer may migrate to another adherend, so that the adherend is in contact with the adhesive layer, exhibiting strong adhesion properties between the adherends.
    Type: Application
    Filed: June 4, 2018
    Publication date: October 4, 2018
    Applicant: Tombow Pencil Co., Ltd.
    Inventors: Noboru YAMADA, Tatsumi UCHIDA, Toshitake MURAKAMI, Takuma TAKAGAWA, Shuhei SASAKI
  • Publication number: 20160186015
    Abstract: Provided are a more useful pressure-sensitive adhesive transfer tape and a transferring implement, which are advantageous not only in that, immediately after adherends, such as paper, are put on one another, the adherends can be easily separated from each other and re-bonded together, but also in that, after a predetermined period of time has lapsed from the time when the adherends are put on one another, the adherends are strongly bonded to each other. A pressure-sensitive adhesive transfer tape having, on one surface of a release substrate having release layers formed on both surfaces of a paper or plastic film substrate, a pressure-sensitive transfer layer having an adhesion inhibiting layer made of a terpene or rosin resin or the like and an adhesive layer, wherein the adhesion inhibiting layer and the adhesive layer are successively stacked on one another, and a transferring implement having the same.
    Type: Application
    Filed: July 29, 2014
    Publication date: June 30, 2016
    Applicant: Tombow Pencil Co., Ltd.
    Inventors: Noboru YAMADA, Tatsumi UCHIDA, Toshitake MURAKAMI, Takuma TAKAGAWA, Shuhei SASAKI