Patents by Inventor Mika SHISHIDO

Mika SHISHIDO 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).

  • Biodegradable hydrogel having cyclic benzylidene acetal structure
    Patent number: 11041052
    Abstract: A biodegradable hydrogel having an acetal structure whose hydrolysis rate under different pH environments in the living body can be accurately controlled. The hydrogel is obtained by crosslinking a polyalkylene glycol derivative having a cyclic benzylidene acetal structure represented by formula (1) shown below with a crosslinking agent: where R1 and R6; R2, R3, R4 and R5; s; t; s+t; P1; Z1 and Z2; W1 and X1 are as defined herein.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: June 22, 2021
    Assignee: NOF CORPORATION
    Inventors: Takuma Tsubusaki, Mika Shishido
  • BIODEGRADABLE HYDROGEL HAVING CYCLIC BENZYLIDENE ACETAL STRUCTURE
    Publication number: 20190092906
    Abstract: A biodegradable hydrogel having an acetal structure whose hydrolysis rate under different pH environments in the living body can be accurately controlled. The hydrogel is obtained by crosslinking a polyalkylene glycol derivative having a cyclic benzylidene acetal structure represented by formula (1) shown below with a crosslinking agent: where R1 and R6; R2, R3, R4 and R5; s; t; s+t; P1; Z1 and Z2; W1 and X1 are as defined herein.
    Type: Application
    Filed: March 29, 2017
    Publication date: March 28, 2019
    Applicant: NOF CORPORATION
    Inventors: Takuma TSUBUSAKI, Mika SHISHIDO