Average Co-Inventor Count = 1.78
ph-index = 4
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 Maxell, Limited (4 from 1,112 patents)
4 patents:
1. 6910634 - Information input/ output unit
2. 6837438 - Non-contact information medium and communication system utilizing the same
3. 6385407 - Accommodating enclosure and management system
4. 6344824 - Noncontact communication semiconductor device