Average Co-Inventor Count = 6.00
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. .Engineering, Inc. (1 from 6 patents)
2. Hitachi Microcomputer Hitachi, Ltd. (1 from 1 patent)
1 patent:
1. 4613914 - Auto-tracking method and apparatus of a magnetic recording/reproducing