Average Co-Inventor Count = 6.00
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. Semiconductor Energy Laboratory Co., Ltd. (1 from 16,612 patents)
2. Tdk Corporation (1 from 7,952 patents)
1 patent:
1. 6040520 - Solar cell and method of manufacturing the same