Average Co-Inventor Count = 5.79
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. Dai Nippon Printing Co., Ltd. (5 from 3,202 patents)
5 patents:
1. 6493013 - Method for recording and reproducing information, apparatus therefor and recording medium
2. 5983057 - Color imaging system with selectively openable optical shutter
3. 5638103 - Method for recording and reproducing information, apparatus therefor and
4. 5161233 - Method for recording and reproducing information, apparatus therefor and
5. 4972099 - Sensor card