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:
Dec. 23, 2025
Filed:
Jan. 27, 2022
Kagoshima University, Kagoshima, JP;
Tokuyama Corporation, Shunan, JP;
Masahiro Yoshida, Kagoshima, JP;
Takayuki Takei, Kagoshima, JP;
Yoshihiro Ohzuno, Kagoshima, JP;
Kengo Nishio, Izumiotsu, JP;
Yasutomo Shimizu, Tsukuba, JP;
Kazuishi Fukuda, Tsukuba, JP;
Takayoshi Kawasaki, Tsukuba, JP;
KAGOSHIMA UNIVERSITY, Kagoshima, JP;
TOKUYAMA CORPORATION, Shunan, JP;
Abstract
The fine hollow particle of the present invention is a fine hollow particle composed of a resin film comprising a melamine-based resin, in which the resin film is composed of a plurality of small piece-shaped portions and a bonding portion for bonding the plurality of small piece-shaped portions. According to the present invention, it is possible to provide stable fine hollow particles having excellent solvent resistance and heat resistance, good dispersibility, and a large particle diameter.