James Mac Freitag

James Mac Freitag is an American inventor based in Sunnyvale, CA, who has made remarkable contributions in the field of spintronics devices and magnetic recording devices. He has over 100 patents to his name and is highly regarded in the industry for his innovative ideas.

His latest patents are a material having both negative spin polarization and negative anisotropy and a seed layer for a spin torque oscillator in a microwave assisted magnetic recording device. The negative anisotropy field and negative spin polarization of the multilayer structure make it ideal for use in magnetic media drives, magnetoresistive random access memory devices, magnetic sensors, and magnetic recording write heads. The seed layer he invented is used in spin torque oscillator devices of microwave assisted magnetic recording devices and can include a tantalum alloy layer, template layer, damping reduction layer, texture reset layer, and more.

Freitag has a vast experience in the technology industry, having worked for big corporations like Western Digital Technologies, Inc., and HGST Netherlands B.V. His coworkers Mustafa Pinarbasi and Zheng Gao, note that he is not only an accomplished inventor but also an excellent team player and collaborator.

Freitag's contribution to spintronics devices, magnetic recording devices, and other related fields has placed him among the top inventors in the industry. His insightful patents continue to impact and shape various technology industries globally.