Average Co-Inventor Count = 2.00
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. Seiko Instruments Inc (1 from 2,899 patents)
1 patent:
1. 7532091 - Piezoelectric vibrator, surface-mounting type piezoelectric vibrator, oscillator, electronic apparatus and wave clock