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:
Jan. 09, 1996
Filed:
Apr. 22, 1993
Applicant:
Inventors:
Assignee:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; B23K / ;
U.S. Cl.
CPC ...
21912169 ; 21912168 ; 21912173 ;
Abstract
Diamond is subjected to working such as smoothing or cutting by irradiation of light having a wavelength in the range of 190 nm to 360 nm to the surface of the diamond. The energy density of the incident light, the divergent angle of the light beam and the half-width of spectrum of the light are specified. The light beam is converged by a cylindrical lens. Moreover, the working is conducted in a specified material, whereby the flatness of the worked face and the working speed are improved.