A search for patents by Stephen Morein who is listed as the CTO of SAIMEMORY shows this one, assigned to Intel, and published strangely close to the press release;

https://patents.google.com/patent/US20260040969A1/en

It talks there about 'Z axis memory' rather than angle, and that one is talking about inductive stuff through stacks of vias.

he's also got: https://patentsgazette.uspto.gov/week02/OG/html/1542-2/US125...

He obviously likes thinking about stacks of dies.