Average Co-Inventor Count = 3.46
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. Matsushita Electric Industrial Co., Ltd. (3 from 27,375 patents)
3 patents:
1. 7206395 - Telephone apparatus
2. 6879824 - Portable telephone device
3. 5844691 - Facsimile server apparatus, a sound server apparatus, and a facsimile