Average Co-Inventor Count = 2.00
ph-index = 3
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. Ricoh Company, Ltd. (3 from 28,577 patents)
3 patents:
1. 7298412 - Image pickup device, automatic focusing method, automatic exposure method, electronic flash control method and computer program
2. 7224393 - Image pickup device, method, program product, and recording medium
3. 6750914 - Image pick-up device