Average Co-Inventor Count = 4.00
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. Other (1 from 832,812 patents)
2. Matsushita Electric Works, Ltd. (1 from 1,623 patents)
1 patent:
1. 4742260 - Piezoelectrically driving device