Average Co-Inventor Count = 3.99
ph-index = 7
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 (8 from 90,594 patents)
8 patents:
1. 6084622 - Frame structure and an image forming apparatus using such a frame
2. 5678139 - Process cartridge with shutter for protecting photosensitive drum
3. 5634178 - Gear unit, image forming apparatus and gear unit mounting method
4. 5621451 - Image forming apparatus
5. 5561496 - Image forming apparatus, assembling method of image forming apparatus,
6. 5559581 - Image forming apparatus with helical gear drive train
7. 5507482 - Sheet feeding apparatus
8. 5298941 - Image forming apparatus having grounded metal plate supporting drive