Patents by Inventor Narumi Dosaka

Narumi Dosaka 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).

  • Mold-preventing air filter filtration medium and mold-preventing air filter
    Patent number: 10173159
    Abstract: A mold-preventing air filter filtration medium loaded with a water-retaining macromolecule polymer, a mold-preventing agent, and a binder resin, is formed by immersing a filter material or a reinforcing nonwoven fabric (a backing material) in a mold-preventing composition in which the water-retaining macromolecule polymer, the mold-preventing agent and the binder resin are dissolved, and drying the filter material or the reinforcing nonwoven fabric. The reinforcing nonwoven fabric (a backing material) may be bonded to a filter material to form a mold-preventing air filter filtration medium. A mold-preventing air filter includes the mold-preventing air filter filtration medium that is pleated and accommodated in a frame.
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: January 8, 2019
    Assignees: Fine Tech Co., Ltd., NOF CORPORATION, DAIKIN INDUSTRIES, LTD.
    Inventors: Yukimitsu Ichikawa, Kanya Goto, Narumi Dosaka, Yumiko Fukushima, Yasuhito Fujimaki, Satoshi Yamada, Osamu Tanaka
  • MOLD-PREVENTING AIR FILTER FILTRATION MEDIUM AND MOLD-PREVENTING AIR FILTER
    Publication number: 20150107203
    Abstract: A mold-preventing air filter filtration medium loaded with a water-retaining macromolecule polymer, a mold-preventing agent, and a binder resin, is formed by immersing a filter material or a reinforcing nonwoven fabric (a backing material) in a mold-preventing composition in which the water-retaining macromolecule polymer, the mold-preventing agent and the binder resin are dissolved, and drying the filter material or the reinforcing nonwoven fabric. The reinforcing nonwoven fabric (a backing material) may be bonded to a filter material to form a mold-preventing air filter filtration medium. A mold-preventing air filter includes the mold-preventing air filter filtration medium that is pleated and accommodated in a frame.
    Type: Application
    Filed: February 12, 2013
    Publication date: April 23, 2015
    Inventors: Yukimitsu Ichikawa, Kanya Goto, Narumi Dosaka, Yumiko Fukushima, Yasuhito Fujimaki, Satoshi Yamada, Osamu Tanaka