Average Co-Inventor Count = 2.00
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. Citizen Watch Company, Ltd. (2 from 2,002 patents)
2. Citizen Electronics Co., Ltd. (2 from 608 patents)
2 patents:
1. 12034104 - Light emitting device
2. 11855244 - Light emitting device