Average Co-Inventor Count = 4.44
ph-index = 3
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. Matsushita Electric Industrial Co., Ltd. (5 from 27,375 patents)
5 patents:
1. 6688787 - Roller device and electronics using the roller device
2. 6270270 - Printing apparatus
3. 6196741 - Printer
4. 5826980 - Non-contact thermometer
5. 5449241 - Printing apparatus