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:
May. 05, 2026
Filed:
Apr. 23, 2024
International Business Machines Corporation, Armonk, NY (US);
Hugo E. Rothuizen, Oberrieden, CH;
Stella Brach, Oberrieden, CH;
Rolf Allenspach, Adliswil, CH;
Simeon Furrer, Altdorf, CH;
Mark Alfred Lantz, Adliswil, CH;
Icko E. T. Iben, Santa Clara, CA (US);
Jason Liang, Campbell, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An apparatus, in accordance with one aspect of the present invention, includes a writer, having a first write pole having a pole tip extending from a media facing side of the first write pole, and a second write pole having a pole tip extending from a media facing side of the second write pole. A nonmagnetic write gap is positioned between the pole tips of the write poles. A high moment layer is positioned between the write gap and the pole tip of the second write pole. The high moment layer has a higher magnetic moment than a magnetic moment of the pole tip of the second write pole. The high moment layer is segmented into at least two portions by one or more decoupling spacers positioned between adjacent ones of the portions. Another aspect includes an apparatus with an array of such writers.