Average Co-Inventor Count = 2.00
ph-index = 4
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)
2. Panasonic Corporation (3 from 16,453 patents)
6 patents:
1. 8295674 - Video signal recording and reproducing apparatus
2. 8285109 - Video signal recording and reproducing apparatus
3. 7590332 - Video signal recording and reproducing apparatus
4. 7231136 - Video signal recording and reproducing apparatus
5. 6430363 - Video signal recording and reproducing apparatus
6. 6226447 - Video signal recording and reproducing apparatus