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:
Mar. 01, 2011
Filed:
Feb. 14, 2008
Takamasa Ishigaki, Tsukuba, JP;
Ji-guang LI, Shenyang, CN;
Kimitoshi Sato, Aichi-ken, JP;
Hidehiro Kamiya, Tokyo, JP;
Yoshitaka Inoue, Tokyo, JP;
Choji Hatsugai, Utsunomiya, JP;
Takashi Suzuki, Isehara, JP;
Takamasa Ishigaki, Tsukuba, JP;
Ji-Guang Li, Shenyang, CN;
Kimitoshi Sato, Aichi-ken, JP;
Hidehiro Kamiya, Tokyo, JP;
Yoshitaka Inoue, Tokyo, JP;
Choji Hatsugai, Utsunomiya, JP;
Takashi Suzuki, Isehara, JP;
Abstract
A material to be treated containing solid particles in a liquid is stirred together with milling media, and irradiated with ultrasonic waves during stirring to finely mill the solid particles to nanometer size and disperse the solid particles in the liquid. The ultrasonic waves create cavitation in the liquid and upon decay of the cavitation, shock waves are produced that cause the solid particles to vigorously collide with one another and with the milling media and these collisions, together with the shearing forces created by collision of the milling media, can produce on a commercial scale nano particles having an average particle size of at most 100 nm.