Average Co-Inventor Count = 1.00
ph-index = NA
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. (1,269 patents)
2. Hisamitsu Pharmaceutical Company, Inc. (376 patents)
3. Toppan Inc. (120 patents)
4. Maruto Sangyo Co., Ltd. (2 patents)
0 patent: