Patents by Inventor Tadashi NAKAGAKI

Tadashi NAKAGAKI 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).

  • Gypsum panel and method for producing gypsum panel
    Patent number: 10968624
    Abstract: A gypsum panel includes a gypsum core containing a termiticide with poor water solubility, wherein the gypsum core has a first end region, a center region, and a second end region having an equal thickness and extending along a thickness direction from one surface side to another surface side, the termiticide is contained in each of the first end region, the center region, and the second end region, and a content of the termiticide in the center region is lower than a content of the termiticide in the first end region and in the second end region.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: April 6, 2021
    Assignee: YOSHINO GYPSUM CO., LTD.
    Inventors: Katsumi Niimi, Itaru Yokoyama, Kazuyuki Umehara, Yuji Ataka, Keiichi Ohki, Shinji Yoshida, Saburou Yamato, Tadashi Nakagaki, Ayaka Taniguchi
  • GYPSUM PANEL AND METHOD FOR PRODUCING GYPSUM PANEL
    Publication number: 20180355605
    Abstract: A gypsum panel includes a gypsum core containing a termite repellent with poor water solubility, wherein the gypsum core has a first end region, a center region, and a second end region having an equal thickness and extending along a thickness direction from one surface side to another surface side, the termite repellent is contained in each of the first end region, the center region, and the second end region, and a content of the termite repellent in the center region is lower than a content of the termite repellent in the first end region and in the second end region.
    Type: Application
    Filed: December 5, 2016
    Publication date: December 13, 2018
    Inventors: Katsumi NIIMI, Itaru YOKOYAMA, Kazuyuki UMEHARA, Yuji ATAKA, Keiichi OHKI, Shinji YOSHIDA, Saburou YAMATO, Tadashi NAKAGAKI, Ayaka TANIGUCHI