Average Co-Inventor Count = 5.54
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. Oki Electric Industry Co., Ltd. (3 from 4,979 patents)
3 patents:
1. 5235389 - Replaceable toner cartridge with internal stirring member, and
2. 4851861 - Thermal transfer recording device
3. 4750881 - Easily assembled carriage mechanism of printer