Average Co-Inventor Count = 3.66
ph-index = 3
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. Matsushita Electric Industrial Co., Ltd. (3 from 27,375 patents)
2. Panasonic Corporation (2 from 16,453 patents)
5 patents:
1. 8132195 - Disk device with shape identifier
2. 8041405 - Stack type mobile terminal
3. 6680676 - Switch unit and portable terminal device using the switch unit
4. 6127933 - Portable communication terminal
5. 5323364 - Cover device for electronic apparatus case