Average Co-Inventor Count = 1.36
ph-index = 5
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. Canon Kabushiki Kaisha (5 from 90,594 patents)
2. Canon Denshi Kabushiki Kaisha (1 from 316 patents)
5 patents:
1. 5606159 - Information recording medium cleaning mechanism
2. 5428213 - Apparatus having mechanism for cleaning information record medium
3. 5150352 - Information recording and reproducing apparatus having an emergency
4. 4950877 - Apparatus for transporting card-like information recording medium
5. 4947029 - Cleaning device for information recording medium