Average Co-Inventor Count = 3.43
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. Toppan Printing Co., Ltd. (1 from 1,268 patents)
2. Toyo Ink Mfg. Co., Ltd. (1 from 105 patents)
3. Toyo Ink Sc Holdings Co., Ltd. (83 patents)
4. Toyo Ink Europe Specialty Chemicals S.a. (0 patent)
2 patents:
1. 7750068 - Colored composition for color filter and color filter
2. 6123763 - Pigment dispersing agent and pigment composition containing the same