Average Co-Inventor Count = 1.86
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. Sony Corporation (9 from 58,132 patents)
9 patents:
1. 6592041 - Transfer apparatus and recording and/or reproduction method and transfer method and recording and/or reproduction method
2. 5953182 - Head moving and holding mechanism for reversible tape recorder
3. 5943182 - Magnetic recording and/or playback apparatus with reduced drive belt
4. 5764433 - Short-side-loading tape cassette recording and/or reproducing apparatus
5. 5621589 - Recording and/or reproducing apparatus
6. 5414573 - Cassette accommodating type electronic device having a plurality of
7. 4225894 - Mode change-over mechanism for recording and/or reproducing apparatus
8. 4178809 - Mode change-over device for recording and/or reproducing apparatus
9. 4147898 - Recording and/or reproducing apparatus mode control system