Average Co-Inventor Count = 4.29
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. Hodogaya Chemical Co., Ltd. (4 from 328 patents)
4 patents:
1. 6627368 - Organic metal complex compound and electrostatic image developing toner using the same
2. 6552211 - Zirconium compound and electrophotographic toner employing it
3. 6410198 - Zirconium compound and electrophotographic toner employing it
4. 6110634 - Electrophotographic toner