The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2025
Filed:
Oct. 06, 2022
Jeol Ltd., Tokyo, JP;
Seketsu Fukuzawa, Tokyo, JP;
Koji Takahashi, Tokyo, JP;
Yoshiyuki Itoh, Tokyo, JP;
Masaki Takiwaki, Tokyo, JP;
Shugo Tsuda, Ibaraki, JP;
Masayoshi Mochizuki, Ibaraki, JP;
Taku Yoshiya, Ibaraki, JP;
JEOL Ltd., Tokyo, JP;
Abstract
Provided is a phosphonium compound represented by Formula (I): in Formula (I), R, R, and Rare independently from each other, an alkyl group or an aryl group, the alkyl group is a substituted or unsubstituted, linear or branched alkyl group having 1 to 20 carbon atoms or a substituted or unsubstituted cyclic alkyl group having 5 to 20 carbon atoms, the aryl group is a substituted or unsubstituted aryl group having 6 to 20 carbon atoms; X is a reactive group having a hydrazide group, a halide group, a pseudohalide group, or a thioester group; and Yis an anion having a total charge of −1, or Yis absence.