Average Co-Inventor Count = 1.80
ph-index = 2
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. Hitachi, Ltd. (2 from 42,508 patents)
2. Hitachi Consulting Co., Ltd. (1 from 1 patent)
3 patents:
1. 8059875 - Information processor, method of detecting factor influencing health, and program
2. 7907746 - Media recognition system
3. 7853084 - Method of detecting feature images