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:
Jun. 21, 2005
Filed:
Oct. 10, 2001
Applicants:
Katashi Saito, Kitakanbara-gun, JP;
Osamu Shinji, Kitakanbara-gun, JP;
Inventors:
Katashi Saito, Kitakanbara-gun, JP;
Osamu Shinji, Kitakanbara-gun, JP;
Assignee:
Kuraray Co., Ltd., Kurashiki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29D011/00 ;
U.S. Cl.
CPC ...
Abstract
In a method of manufacturing a plastic optical fiber by heating and drawing either one end portion of a transparent plastic rod, a plastic optical fiber having a cross sectional form approximately similar to the cross sectional form of the transparent plastic rod, the transparent plastic rod is heated by exposing near infrared ray which is radiated from a near infrared ray source. This can prevent the plastic optical fiber from causing to blow many bubbles on the surface and heat degradation to allow the plastic optical fiber to be obtained with a high quality.