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:
Oct. 20, 2009
Filed:
Feb. 28, 2005
Jaewon Park, Daejeon, KR;
Jaehyung Lee, Daejeon, KR;
Changwon Sohn, Daegu, KR;
Byungho Choi, Daejeon, KR;
Jaewon Park, Daejeon, KR;
Jaehyung Lee, Daejeon, KR;
Changwon Sohn, Daegu, KR;
Byungho Choi, Daejeon, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Abstract
The present invention relates to a manufacturing method of colored diamond and, more particularly, to a manufacturing method of colored diamond by ion implantation and heat treatment. The manufacturing method comprises a first step of implanting ions to the surface of diamond by accelerating the ions under vacuum, and a second step of heat-treating the implanted diamond. By implanting ions inducing the change in the optical band gap of a diamond, the manufacturing method provides a colored diamond with relatively lower cost compared to a metal ion implantation in the prior art, and a uniform color is obtained by heat treatment. Additionally, the manufacturing method of the present invention provides a diamond having various colors with permanent color development effects, by controlling the condition of ion implantation and heat treatment.