It's fitting that two of the three members of this panel -- including the author of the opinion -- are former law professors. Because the issue is straight out of a first-year civil procedure exam:
Does personal jurisdiction based upon "tagging" (i.e., personal service) apply to service upon a corporation?
The Ninth Circuit says "No."
Read the opinion and drift fondly back to those halcyon days when you were a first-year law student.