Average Co-Inventor Count = 1.67
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. Sanyo Electric Co., Ltd. (2 from 8,780 patents)
2 patents:
1. 8278869 - Battery system and battery pack
2. 6899687 - Massage machine and physiological quantity measuring circuit for use in the machine