Average Co-Inventor Count = 3.64
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 Works, Ltd. (3 from 1,623 patents)
2. Other (1 from 832,880 patents)
4 patents:
1. 6645229 - Slimming device
2. 6196236 - Ultrasonic hair curling device
3. 4646815 - Heat exchange mat
4. 4631102 - Method of manufacturing heat exchange mat