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. 04, 2011
Filed:
Feb. 26, 2009
Toshihiro Usa, Odawara, JP;
Kazunori Komatsu, Odawara, JP;
Toshihiro Usa, Odawara, JP;
Kazunori Komatsu, Odawara, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
When performing writing on a substrate applied with a resist by rapidly vibrating electron beam in a direction orthogonal to a radial direction of the substrate and X-Y deflecting the electron beam while rotating the substrate in one direction, a long element is written by scanning the electron beam with the middle position of a 2-bit signal length as the center position of the electron beam so as to completely fill the area of the writing length reduced by a predetermined ratio and an unwritten portion of predetermined width remaining on each side of the long element with respect to a final 2-bit signal length on a magnetic disk medium.