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. 14, 2025
Filed:
May. 30, 2024
Headway Technologies, Inc., Milpitas, CA (US);
Hong Guo, Fremont, CA (US);
Dayu Zhou, Fremont, CA (US);
Tobias Maletzky, San Jose, CA (US);
Weihao Xu, San Jose, CA (US);
Koji Shimazawa, Cupertino, CA (US);
Tsutomu Chou, Chiba, JP;
Headway Technologies, Inc., Milpitas, CA (US);
Abstract
The present embodiments relate to a near-field transducer (NFT) for a hard disk drive write head with a parabolic waveguide blocker. The waveguide blocker can include a parabolic curved surface in a center portion of a first side of the waveguide blocker and a first side comprising a slope angle of between 10-90 degrees. The waveguide blocker can be configured to reduce electromagnetic radiation from the waveguide core and recycle a scattering field emitting from the NFT to mitigate a thermal background in a recording medium and improve a thermal gradient to increase an area density capacity (ADC) of the hard disk drive write head.