Average Co-Inventor Count = 1.26
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. Other (2 from 832,880 patents)
2. Hitachi, Ltd. (1 from 42,508 patents)
4 patents:
1. 11839273 - Jewelry device with fluorescent diamonds
2. 11395533 - Jewelry box
3. 11317685 - Device
4. 6075539 - Method and apparatus for displaying CAD geometric object and storage