Patents by Inventor Takamichi OISHI

Takamichi OISHI 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).

  • HEAT-SENSITIVE RECORDING MATERIAL
    Publication number: 20240109359
    Abstract: The purpose of the present disclosure is to improve the sensitivity of 4,4?-dihydroxydiphenylsulfone, which is a developer, in a heat-sensitive recording material. The present disclosure provides a heat-sensitive recording material that uses at least one selected from 1,2-bis(phenoxy)ethane, 1,2-bis(3-methylphenoxy)ethane, benzyloxynaphthalene, and oxalic acid di-p-methylbenzyl ester as a sensitizer for 4,4?-dihydroxydiphenylsulfone, and further includes benzoin as a sensitization aid.
    Type: Application
    Filed: June 11, 2020
    Publication date: April 4, 2024
    Inventors: Yoshimi ISHIBASHI, Takamichi OISHI, Yoshitaka FUJINO, Ryoichi KINISHI