Average Co-Inventor Count = 4.50
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. (2 from 27,375 patents)
2. Matsuda Electric Industrial Co., Ltd. (1 from 1 patent)
3 patents:
1. 6639555 - Antenna unit, communication system and digital television receiver
2. 6362784 - Antenna unit and digital television receiver
3. 6016109 - Mobile unit support system