Average Co-Inventor Count = 5.46
ph-index = 4
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. Kao Corporation (3 from 3,603 patents)
2. Shibuya Kogyo Co., Ltd. (1 from 134 patents)
3. Kao Corporation and Shibuya Kogyo Co., Ltd. (1 from 1 patent)
4 patents:
1. 5509524 - Article transportation processing system
2. 5437361 - Article conveyor unit
3. 5375898 - Article holding arrangement
4. 5337796 - Article transportation processing system