Average Co-Inventor Count = 3.43
ph-index = 1
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Hitachi Metals, Ltd. (2 from 2,333 patents)
2 patents:
1. 7381282 - Co alloy target and its production method, soft magnetic film for perpendicular magnetic recording and perpendicular magnetic recording medium
2. 7141208 - Fe-Co-B alloy target and its production method, and soft magnetic film produced by using such target, and magnetic recording medium and TMR device