Average Co-Inventor Count = 4.20
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. Otsuka Chemical Co., Ltd. (1 from 167 patents)
2. Otsuka Kagaku Kabushiki Kaisha (1 from 138 patents)
2 patents:
1. 6703139 - Weather-resistant composition, coating materials and molded articles
2. 5922882 - Bisbenzotriazolylphenol compound