Patents by Inventor Itsuka MATSUMOTO

Itsuka MATSUMOTO 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).

  • Starting material, for bulk drug or additives for drug, and bulk drug or drug using same
    Patent number: 11299587
    Abstract: The present invention provides a raw material for bulk drugs and a pharmaceutical additive which provide excellent formulation stability and excellent over-time stability of drug efficacy when used to modify a bulk drug, a polypeptide, a bioactive protein, an enzyme, and the like. The present invention relates to a raw material for bulk drugs or a pharmaceutical additive, containing: a polyether composition (A) represented by formula (1), wherein the polyether composition (A) has a unimodal molecular weight distribution, the polyether composition (A) has a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of 1.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: April 12, 2022
    Assignee: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Shihei Motofuji, Kenichiro Nakai, Kyosuke Michigami, Itsuka Matsumoto
  • STARTING MATERIAL FOR BULK DRUG OR ADDITIVES FOR DRUG, AND BULK DRUG OR DRUG USING SAME
    Publication number: 20210363300
    Abstract: The present invention provides a raw material for bulk drugs and a pharmaceutical additive which provide excellent formulation stability and excellent over-time stability of drug efficacy when used to modify a bulk drug, a polypeptide, a bioactive protein, an enzyme, and the like. The present invention relates to a raw material for bulk drugs or a pharmaceutical additive, containing: a polyether composition (A) represented by formula (1), wherein the polyether composition (A) has a unimodal molecular weight distribution, the polyether composition (A) has a ratio (Mw/Mn) of the weight average molecular weight (Mw) to the number average molecular weight (Mn) of 1.
    Type: Application
    Filed: December 21, 2018
    Publication date: November 25, 2021
    Applicant: SANYO CHEMICAL INDUSTRIES, LTD.
    Inventors: Shihei MOTOFUJI, Kenichiro NAKAI, Kyosuke MICHIGAMI, Itsuka MATSUMOTO