Average Co-Inventor Count = 4.44
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 Manufacturing Company (1 from 223 patents)
3. Toyo Ink Mfg. Co., Ltd. (1 from 105 patents)
2 patents:
1. 7288345 - Photosensitive colored composition and color filter
2. 5631307 - Photopolymerization initiator composition and photopolymerizable