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. 13, 2003
Filed:
Jan. 26, 2001
In Bae Kim, Seoul, KR;
Jin Taek Hwang, Daejeon, KR;
Samsung Electronics Co., Ltd., Kyungki-do, KR;
Abstract
A method of preparing an object with a radially-varying property is disclosed which includes the steps of providing a preform reactor including an outer container having a bottom, an inner container installed in the outer container, the inner container having a bottom, a rotating rod installed at a position in the outer container, and a sealing member for sealing the outer and inner containers at the bottoms thereof; filling the inner container with an inner material and a space between the inner container and the outer container with an outer material wherein the outer material has a different property from the inner material; removing the inner container; and rotating the rotating rod for laminar mixing of the inner and outer materials. An apparatus for carrying out the inventive method, and objects formed in accordance with the inventive method, are also disclosed.