Average Co-Inventor Count = 7.08
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. Panasonic Electric Works Co., Ltd. (3 from 394 patents)
2. Panasonic Corporation (1 from 16,453 patents)
3. Matsushita Electric Works, Ltd. (1 from 1,623 patents)
5 patents:
1. 8282584 - Massage chair
2. 8083700 - Chair type massager
3. 7708340 - Massage chair
4. 7690724 - Message chair
5. 7241271 - Massage machine