公开(公告)号：US09957245B2

公开(公告)日：2018-05-01

申请号：US15320347

申请日：2015-06-29

Applicant: NBC MESHTEC INC.

Inventor： Yoshie Fujimori ,  Tsuruo Nakayama ,  Tomokazu Nagao

IPC: C07D311/00 ,  C07D311/22 ,  B01J23/42 ,  B01J23/44 ,  B01J23/52 ,  B01J23/89 ,  B01J35/00 ,  B01J35/02 ,  C07B61/00

CPC classification number: C07D311/22 ,  B01J23/42 ,  B01J23/44 ,  B01J23/52 ,  B01J23/89 ,  B01J35/0013 ,  B01J35/023 ,  C07B61/00

Abstract: The objective/problem addressed by the present invention is to provide a novel technique pertaining to theaflavins synthesis. The present invention pertains to: a theaflavins synthesis catalyst characterized in having a base comprising an inorganic material, and metal nanoparticles anchored to the base, said particles measuring 0.5-100 nm in diameter; and a theaflavins synthesis method in which the catalyst is used.

公开(公告)号：US11434218B2

公开(公告)日：2022-09-06

申请号：US16634915

申请日：2018-08-24

Applicant: NBC MESHTEC INC.

Inventor： Erika Takahashi ,  Yoshie Fujimori ,  Youhei Jikihara ,  Tsuruo Nakayama

IPC: C07D311/64 ,  B01J21/04 ,  B01J21/06 ,  B01J21/18 ,  B01J23/30 ,  B01J23/42 ,  B01J23/44 ,  B01J23/46 ,  B01J23/50 ,  B01J23/52 ,  B01J23/72 ,  B01J23/745 ,  B01J35/00

Abstract: [PROBLEM] To provide a novel method for synthesising a polyphenol.
[SOLUTION] A polyphenol production method including the reaction of catechin in the presence of a catalyst and an oxidising agent, said catalyst comprising a metal oxide and/or a composite that comprises: a substrate which has an inorganic material on the surface thereof; and metal nanoparticles of a particle diameter of 0.5-100 nm attached to the surface of the inorganic material.