Average Co-Inventor Count = 4.85
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. (2 from 1,623 patents)
2. Panasonic Electric Works Co., Ltd. (1 from 394 patents)
3 patents:
1. 7478640 - Hair iron
2. 7165341 - Hair dryer with minus ion generator
3. 6986212 - Hair dryer with minus ion generator