Patents by Inventor Hiroshi Kuwano

Hiroshi Kuwano 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).

  • CONDENSED HETEROCYCLIC COMPOUND
    Publication number: 20240092784
    Abstract: A condensed heterocyclic compound has a sepiapterin reductase inhibitory action and is particularly useful for treatment of a pain. The condensed heterocyclic compound represented by Formula (I) below (R1 represents a hydrocarbon group or the like; R2 and R3 represent a hydrogen atom or the like; R4, X, and Y represent defined substituents), a tautomer or a pharmaceutically acceptable salt of the compound, or a solvate of any of these.
    Type: Application
    Filed: April 13, 2021
    Publication date: March 21, 2024
    Applicants: NISSAN CHEMICAL CORPORATION, SHIONOGI & CO., LTD.
    Inventors: Masahiro KAMAURA, Yusuke INABA, Yusuke SHINTANI, Yuki KUWANO, Moemi NAKAO, Hiroshi NAGAI, Noriyuki KUROSE, Kenji TAKAYA, Mado NAKAJIMA
  • Air filter medium
    Patent number: 8951324
    Abstract: The objective of the present invention is to provide an air filter medium having a lower pressure drop and higher efficiency as compared to an air filter medium currently in use. This objective is achieved by providing an air filter medium characterized by comprising glass short fibers as its main fibers in which the constituent fibers are dispersed uniformly and, when the constituting fibers at a diluted concentration of 0.04% by mass are allowed to stand for 12 hours, the sedimentation volume is 450 cm3/g or greater.
    Type: Grant
    Filed: May 6, 2011
    Date of Patent: February 10, 2015
    Assignee: Hokuetsu Kishu Paper Co. Ltd.
    Inventors: Toshihiko Soyama, Hiroshi Kuwano
  • AIR FILTER MEDIUM
    Publication number: 20110283671
    Abstract: The objective of the present invention is to provide an air filter medium having a lower pressure drop and higher efficiency as compared to an air filter medium currently in use. This objective is achieved by providing an air filter medium characterized by comprising glass short fibers as its main fibers in which the constituent fibers are dispersed uniformly and, when the constituting fibers at a diluted concentration of 0.04% by mass are allowed to stand for 12 hours, the sedimentation volume is 450 cm3/g or greater.
    Type: Application
    Filed: May 6, 2011
    Publication date: November 24, 2011
    Applicant: HOKUETSU KISHU PAPER CO., LTD.
    Inventors: Toshihiko SOYAMA, Hiroshi KUWANO
  • Air filter medium
    Publication number: 20090320428
    Abstract: The objective of the present invention is to provide an air filter medium having a lower pressure drop and higher efficiency as compared to an air filter medium currently in use. This objective is achieved by providing an air filter medium characterized by comprising glass short fibers as its main fibers in which the constituent fibers are dispersed uniformly and, when the constituting fibers at a diluted concentration of 0.04% by mass are allowed to stand for 12 hours, the sedimentation volume is 450 cm3/g or greater.
    Type: Application
    Filed: August 12, 2009
    Publication date: December 31, 2009
    Inventors: Toshihiko Soyama, Hiroshi Kuwano