Average Co-Inventor Count = 3.00
ph-index = 2
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 Epson Corporation (2 from 33,418 patents)
2. Epson Toyocom Corporation (1 from 100 patents)
3 patents:
1. 8344599 - Quartz crystal device and method for sealing the same
2. 8069549 - Method for sealing a quartz crystal device
3. 7928635 - Package for electronic component and piezoelectric resonator