Average Co-Inventor Count = 3.83
ph-index = 2
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. Oji Paper Co., Ltd. (3 from 229 patents)
2. Oji Nepia Co., Ltd. (3 from 8 patents)
3 patents:
1. 8211077 - Disposable pant-type diaper
2. 8066683 - Disposable diaper
3. 7785310 - Disposable diaper