Average Co-Inventor Count = 3.09
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 (5 from 58,130 patents)
2. Sony Deutschland Gmbh (1 from 360 patents)
5 patents:
1. 6018356 - Printing apparatus and autocharger thereof
2. 5895157 - Printing apparatus and autochanger thereof
3. 4573093 - Disc cassette loading apparatus
4. 4546397 - Flexible magnetic disc cassette
5. 4510546 - Flexible magnetic disc cassette