Average Co-Inventor Count = 3.00
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 (1 from 10,248 patents)
2. Baldwin-japan Ltd. (1 from 27 patents)
2 patents:
1. 6138563 - Dampening water feeding method and apparatus
2. 4571357 - Electrically insulating laminate paper for oil-impregnated electric