Average Co-Inventor Count = 2.53
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 (4 from 58,131 patents)
4 patents:
1. 7474323 - Print apparatus, ribbon movement control device, ribbon film, ribbon movement control method, and program
2. 6184930 - Electronic still camera with dual contact shutter switch for picture review
3. 5497193 - Electronic still camera with dual contact shutter switch for picture
4. 5428453 - Magnetic disk recorder