Patents by Inventor Chikahiko MITSUI

Chikahiko MITSUI 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).

  • Chalcogen-containing organic compound and a use thereof
    Patent number: 9853225
    Abstract: A compound is represented by Formula (1): wherein, each X is independently oxygen, sulfur, or selenium; m is 0 or 1; each n is independently 0 or 1; R1-R3 are each independently, for example, hydrogen or alkyl having 1 to 20 carbons; wherein (i) in the case of m=0, it is excluded that all of R1-R3 are hydrogen at the same time; (ii) in the case of m=0, n=0 and in the case that m is 0, one of n is 0 and the other is 1, it is excluded that “both of X are sulfur and all R3s are the same atoms or groups at the same time”; (iii) in the case of m=0, n=1, it is excluded that all R3s are the same atoms or groups at the same time, and at least one of R3s is hydrogen.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: December 26, 2017
    Assignees: JNC CORPORATION, PI-CRYSTAL INCORPORATION
    Inventors: Junichi Takeya, Toshihiro Okamoto, Chikahiko Mitsui, Takeshi Matsushita
  • A CHALCOGEN-CONTAINING ORGANIC COMPOUND AND A USE THEREOF
    Publication number: 20160013425
    Abstract: A compound is represented by Formula (1): wherein, each X is independently oxygen, sulfur, or selenium; m is 0 or 1; each n is independently 0 or 1; R1-R3 are each independently, for example, hydrogen or alkyl having 1 to 20 carbons; wherein (i) in the case of m=0, it is excluded that all of R1-R3 are hydrogen at the same time; (ii) in the case of m=0, n=0 and in the case that m is 0, one of n is 0 and the other is 1, it is excluded that “both of X are sulfur and all R3s are the same atoms or groups at the same time”; (iii) in the case of m=0, n=1, it is excluded that all R3s are the same atoms or groups at the same time, and at least one of R3s is hydrogen.
    Type: Application
    Filed: March 5, 2014
    Publication date: January 14, 2016
    Inventors: Junichi TAKEYA, Toshihiro OKAMOTO, Chikahiko MITSUI, Takeshi MATSUSHITA