Average Co-Inventor Count = 7.00
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. Ricoh Company, Ltd. (2 from 28,584 patents)
2 patents:
1. 7413788 - Write-once-read-many optical recording media and process for recording and reproducing information on the media
2. 6933032 - Write-once-read-many optical recording media and process for recording and reproducing information on the media