Patents by Inventor Yojirou KUMAGAE

Yojirou KUMAGAE 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).

  • BENZOTRIAZOLE COMPOUND, LIGHT ABSORBER, AND RESIN COMPOSITION
    Publication number: 20220363650
    Abstract: Provided is a benzotriazole compound represented by Formula (1). In Formula (1), R1 to R4 represent substituents. In Formula (1), n1 represents an integer from 0 to 4, and n2 represents an integer from 0 to 3.
    Type: Application
    Filed: September 18, 2020
    Publication date: November 17, 2022
    Applicants: MITSUI CHEMICALS, INC., YAMAMOTO CHEMICALS, INC.
    Inventors: Masaru KAWAGUCHI, Shinsuke ITO, Yoshiyuki TOTANI, Yusuke MATSUI, Yojirou KUMAGAE, Daisuke KAKIO, Bunji SAWANO, Hiroshi NARUSE, Ryoji YAMAGUCHI