Average Co-Inventor Count = 4.00
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. Nec Corporation (1 from 35,774 patents)
2. Nagase Co., Ltd. (1 from 68 patents)
3. Sanwa Frost Industry Co., Ltd. (1 from 1 patent)
1 patent:
1. 7381285 - Manufacturing method of a device