Average Co-Inventor Count = 6.65
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. Mitsubishi Denki Kabushiki Kaisha (4 from 21,351 patents)
4 patents:
1. 7272356 - Information delivery system
2. 6970168 - On-board display system
3. 6745111 - System and method for presenting information to passengers in conveyance
4. 6490508 - System and method for presenting information to passengers in conveyance