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. Furukawa Denchi Kabushiki Kaisha (2 from 45 patents)
2 patents:
1. 5665483 - Sealed storage battery
2. 5586993 - Sealed storage battery and manufacturing method thereof