Average Co-Inventor Count = 6.00
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. Sony Corporation (2 from 58,132 patents)
2. Hodogaya Chemical Co., Ltd. (2 from 328 patents)
2 patents:
1. 5883232 - Hydrophobic cationic dyes and thermal transfer ink ribbons using the same
2. 5834600 - Hydrophobic cationic dyes and thermal transfer ink ribbons using the same