Average Co-Inventor Count = 3.39
ph-index = 5
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. (5 from 42,496 patents)
5 patents:
1. D427191 - Computer housing
2. D313980 - Central processor for an electronic computer
3. 4731703 - Power supply structure and system for mounting the same
4. 4231130 - Automatic washing machine and method for operating the same
5. 4184347 - Automatic washing machine