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:
Aug. 04, 1992
Filed:
Dec. 29, 1989
Eiichi Masuhara, Tokyo, JP;
Shigeo Komiya, Urawa, JP;
Takeyuki Sawamoto, Tokyo, JP;
Shusuke Kimura, Yono, JP;
Koji Ozeki, Yono, JP;
Kensuke Nakajima, Yono, JP;
Kiyomi Sanbonmatsu, Yono, JP;
Noboru Nishiyama, Yono, JP;
Japan Institute of Advanced Dentistry, Tokyo, JP;
Abstract
A method to continuousky harden light-curable resins, by irradiating at least one shaped article made of a light-curable resin by continuously moving the article past a multiplicity of light sources while changing the flux of the irradiated light in multiple steps corresponding to the moving positions of the object and an apparatus to accomplish this method including means to continuously move the article relative to the multiple irradiation sources and means to adjust the flux density in multiple steps corresponding to the moving positions of the article. Specifically, the flux density of the light irradiated on the moving article is changed stepwide depending upon the position and the location of the article and the polymerization speed of the article and the hardening depth can be controlled in relation to its position and time.