Average Co-Inventor Count = 4.00
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. Sumitomo Electric Industries, Limited (2 from 10,264 patents)
2. Nippon Telegraph and Telephone Corporation (2 from 5,290 patents)
3. Tokai Rubber Industries, Ltd. (2 from 720 patents)
4. Telephone Corporation (1 from 3 patents)
2 patents:
1. 5278217 - Water absorptive composition
2. 5179611 - Optical fiber cable having a water absorptive member