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:
Nov. 05, 2019
Filed:
Jun. 01, 2018
Western Digital Technologies, Inc., Irvine, CA (US);
Kenji Tasaka, Yokohama, JP;
Yuichiro Sano, Sagamihara, JP;
Ehsan Rismaniyazdi, San Jose, CA (US);
Barry Stipe, San Jose, CA (US);
Nobuyuki Okunaga, Odawara, JP;
Erhard Schreck, San Jose, CA (US);
Oscar Ruiz, San Jose, CA (US);
Qing Dai, San Jose, CA (US);
Sripathi V. Canchi, Sunnyvale, CA (US);
Weidong Huang, Palo Alto, CA (US);
Yong Hu, San Ramon, CA (US);
Kenji Kuroki, Fujisawa, JP;
WESTERN DIGITAL TECHNOLOGIES, INC., San Jose, CA (US);
Abstract
Disclosed herein is a magnetic storage device that comprises a housing defining an interior cavity. The magnetic storage device also comprises at least one magnetic disk in the interior cavity of the housing. The magnetic storage device further comprises at least one read-write head in the interior cavity and configured to read data from and write data to the magnetic disk. The read-write head comprises a heat-assisted magnetic storage (HAMR) head. The magnetic storage device additionally comprises a gas, comprising oxygen and helium, sealed in the interior cavity of the housing. A percent concentration of oxygen in the gas is greater than or equal to 3%. A pressure of the gas is between 10% and 70%, inclusive, of atmospheric pressure. A relative humidity within the interior cavity is less than 5%, inclusive. A percent concentration of helium in the gas is less than or equal to 90%.