Patents by Inventor Tainen Shimotsu

Tainen Shimotsu 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).

  • CHEMICAL FILTER AND METHOD FOR PRODUCING THE SAME
    Publication number: 20100059435
    Abstract: A chemical filter obtained by fabricating a chemical filter material, the chemical filter material being a woven or nonwoven fabric formed from a hydroxyl group-containing organic fiber, the hydroxyl group-containing organic fiber containing cation exchange groups introduced by radiation graft polymerization, the chemical filter material having an ion-exchange capacity of 400 meq/m2 or more with respect to the cation exchange groups, and the chemical filter material having a tensile strength of 5 to 20 N/15 mm.
    Type: Application
    Filed: August 12, 2009
    Publication date: March 11, 2010
    Applicant: NICHIAS CORPORATION
    Inventors: Akihiro Imai, Takashi Tanahashi, Toshiro Nakano, Tainen Shimotsu, Shiro Ishiwata, Takashi Shimonosono
  • CHEMICAL FILTER AND METHOD FOR PRODUCING THE SAME
    Publication number: 20090241497
    Abstract: A chemical filter is obtained by pleating a nonwoven fabric, the nonwoven fabric being a spunlace nonwoven fabric prepared by causing fibers to be entangled by a spunlace method, and ion-exchange groups being introduced into the fibers by radiation graft polymerization.
    Type: Application
    Filed: January 14, 2009
    Publication date: October 1, 2009
    Applicant: NICHIAS Corporation
    Inventors: Akihiro Imai, Takashi Tanahashi, Toshiro Nakano, Tainen Shimotsu