Average Co-Inventor Count = 5.09
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. Ricoh Company, Ltd. (2 from 28,577 patents)
2. Kyushu University (2 from 433 patents)
2 patents:
1. 11950503 - Organic material and photoelectric conversion element
2. 10062854 - Organic material and photoelectric conversion element