Average Co-Inventor Count = 1.12
ph-index = 13
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. Mitsubishi Pencil Company, Limited (34 from 384 patents)
2. Kabushiki Kaisha Toshiba (6 from 52,751 patents)
41 patents:
1. D1045373 - Case for mechanical pencil leads
2. D1045375 - Case for mechanical pencil leads
3. D1044943 - Pen
4. D1043099 - Case for mechanical pencil leads
5. D1029938 - Case for refill lead
6. D1029937 - Pen
7. 11472222 - Multifunction pen
8. D942849 - Packaging container
9. 11221686 - Multifunction pen
10. D936144 - Pen
11. 10921909 - Input touch pen
12. D894900 - Stylus
13. D894901 - Stylus
14. D894902 - Stylus
15. 9994066 - Erasing implement and writing implement provided with erasing implement