Average Co-Inventor Count = 2.67
ph-index = 4
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. Mitsubishi Denki Kabushiki Kaisha (4 from 21,351 patents)
4 patents:
1. D402626 - Uninterruptive power supply for an electronic apparatus
2. D302680 - Handset telephone
3. D302274 - Portable telephone or similar article
4. D297839 - Portable handset telephone or similar article