Average Co-Inventor Count = 2.50
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 Electronics Co., Ltd. (3 from 608 patents)
2. Citizen Watch Company, Ltd. (2 from 2,002 patents)
3. Citizen Holdings Company, Ltd. (1 from 450 patents)
3 patents:
1. D995455 - Light emitting diode
2. D776304 - Light source
3. D773075 - Light source