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. 28, 2025
Filed:
Jul. 24, 2024
Headway Technologies, Inc., Milpitas, CA (US);
Hong Guo, Fremont, CA (US);
Dayu Zhou, Fremont, CA (US);
Weihao Xu, San Jose, CA (US);
Koji Shimazawa, Cupertino, CA (US);
Tsutomu Chou, Chiba, JP;
Yukinori Ikegawa, Cupertino, CA (US);
Headway Technologies, Inc., Milpitas, CA (US);
Abstract
The present embodiments relate to a noble metal coating on a parabolic waveguide blocker surface to future improve thermal gradient for HAMR head which can provide an improved thermal spot confinement over other designs. More particularly, the present embodiments relate to a component in the near field transducer (NFT), made of a metallic parabolic shaped waveguide blocker (PWB) with noble metal coating on the PWB surface. The designs as described herein can include a noble metal coating (e.g., Au, Rh, Ir, Pt, Aluminum (Al), etc.) which can enable a plasmonic effect on the PWB surface for HAMR thermal gradient improvement.