Average Co-Inventor Count = 4.00
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. Nippon Soda Co., Ltd. (1 from 517 patents)
2. Hitachi, Ltd. (42,522 patents)
3. Olympus Corporation (8,203 patents)
4. Kyoto University (822 patents)
1 patent:
1. 6713564 - Star block copolymer