Average Co-Inventor Count = 3.00
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 28,544 patents)
3 patents:
1. 5800914 - Thermal image transfer recording medium
2. 5258234 - Thermal image transfer recording medium
3. 5250361 - Thermal image transfer recording medium