Average Co-Inventor Count = 2.18
ph-index = 4
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. Kinyosha Co., Ltd. (4 from 28 patents)
4 patents:
1. 5445588 - Printing roller
2. 5113760 - Ink roller for printing machine
3. 5099759 - Ink metering roller and method of manufacturing the same
4. 5033380 - Inking unit with hollow microballoons in surface and method of making