Patents by Inventor Sergio Ishiba

Sergio Ishiba 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).

  • Publication number: 20200155464
    Abstract: The present invention addresses a problem of providing a high quality seamless capsule, with excellent uniformity of shell thickness and virtually no eyes in the shell. The problem can be solved by manufacturing a seamless capsule using a shell composition comprising at least one polysaccharide selected from the group consisting of agar, carrageenan and gellan gum, and a PVA copolymer comprising the following structural units: (i) polyvinyl alcohol, (ii) at least one unsaturated carboxylic acid selected from the group consisting of acrylic acid, methacrylic acid, fumaric acid and maleic acid, and (iii) at least one unsaturated carboxylic acid ester selected from the group consisting of compounds represented by formula [I]: H2C?C(R?)—COOR2??[I] (wherein R1 represents a hydrogen atom or a methyl group, and R2 represents an alkyl group having 1 to 4 carbon atoms).
    Type: Application
    Filed: June 6, 2018
    Publication date: May 21, 2020
    Inventors: Koichi Nishimura, Sergio Ishiba, Hitoshi Uruga, Hisayoshi Aoki, Yosuke Kondo, Yoshiyuki Shimokawa