Average Co-Inventor Count = 11.00
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. Hitachi, Ltd. (2 from 42,517 patents)
2. Echo Co. Ltd. (2 from 4 patents)
2 patents:
1. 5673083 - Semiconductor device and video camera unit having the same and method
2. 5400072 - Video camera unit having an airtight mounting arrangement for an image