Patents by Inventor Norihiko Onishi

Norihiko Onishi 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).

  • Method for measuring concentration of stable free radical compound
    Patent number: 6740528
    Abstract: In a process of treating a radical polymerizable compound containing a stable free radical compound, there is provided a method for measuring the concentration of the stable free radical compound rapidly and with high precision, from the absorption intensity of electron spin resonance.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 25, 2004
    Assignee: Hakuto Co., Ltd.
    Inventors: Norihiko Onishi, Hiroshi Kurumado, Yoshiharu Yamaguchi
  • Method for measuring concentration of stable free radical compound
    Publication number: 20020048820
    Abstract: In a process of treating a radical polymerizable compound containing a stable free radical compound, there is provided a method for measuring the concentration of the stable free radical compound rapidly and with high precision, from the absorption intensity of electron spin resonance.
    Type: Application
    Filed: August 30, 2001
    Publication date: April 25, 2002
    Applicant: HAKUTO CO., LTD.
    Inventors: Norihiko Onishi, Hiroshi Kurumado, Yoshiharu Yamaguchi