Patents by Inventor Taisuke Ootsubo

Taisuke Ootsubo 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: 4826519
    Abstract: The present invention relates to a filter element suitable for the purification of gas, in which spaces are constituted with porous spacer between plural membrane filters. Particles or dusts captured in the filter element of the present invention are prevented from rescattering under the impulsive pressure at the initiation or termination of the filtration, so that the high precision of the filtration can be achieved.
    Type: Grant
    Filed: March 11, 1988
    Date of Patent: May 2, 1989
    Assignee: Kurashiki Boseki Kabushiki Kaisha
    Inventors: Tokuya Miyagi, Akihisa Inoue, Taisuke Ootsubo, Shoichi Fujimori