Average Co-Inventor Count = 5.70
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. Kabushiki Kaisha Toshiba (4 from 52,751 patents)
4 patents:
1. 7616863 - Information storage medium, information reproduction device, information reproduction method
2. 7587503 - Content reproduction apparatus, and content reproduction method
3. 7574119 - Information playback apparatus and information playback method
4. 7424210 - Information storage medium, information reproduction device, information reproduction method