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:
Jul. 06, 2010
Filed:
May. 30, 2005
Applicant:
Mitsuhiro Horio, Kurashiki, JP;
Inventor:
Mitsuhiro Horio, Kurashiki, JP;
Assignee:
Asahi Kasei Chemicals Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 21/22 (2006.01); G11B 5/54 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ramp for a polyoxymethylene hard resin disk drive, which has an outgas level of not more than 20 μg/g. The ramp for a polyoxymethylene resin hard disk drive comprises the steps of providing an extruder, melt kneading a polyoxymethylene resin with a colorant while degassing through one or more vents under a reduced pressure of −0.06 Mpa or less to prepare polyoxymethylene resin pellets, and injection molding the polyoxymethylene resin pellets, washing the molding with a solvent, and drying the molding.