Average Co-Inventor Count = 4.04
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. Sony Corporation (10 from 58,129 patents)
2. Sony Nec Optiarc Inc. (1 from 12 patents)
11 patents:
1. 8286200 - Disk drive apparatus and electronic appliance
2. 8112773 - Disk transfer mechanism, and disk drive device
3. 7966628 - Disk transfer mechanism and disk recording and/or reproduction apparatus
4. 7856641 - Disk drive device and centering members therefor
5. 7676819 - Disk conveying apparatus
6. 7370338 - Disc type recording/reproduction device
7. 7269834 - Disc type recording and/or reproducing apparatus
8. 7222351 - Shutter closing mechanism and disc driving apparatus
9. 7137129 - Disk drive apparatus
10. 7017167 - Disc recording and/or reproduction apparatus
11. 6964056 - Disk type recording and reproducing device