Average Co-Inventor Count = 2.82
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. (4 from 27,375 patents)
4 patents:
1. 4899370 - Remote control apparatus for electronic equipment
2. 4306690 - Magnetic tape carrier
3. 4152738 - Magnetic tape recording and/or reproducing apparatus
4. 4030133 - Guide drum apparatus for a video tape recorder and/or player