Average Co-Inventor Count = 1.15
ph-index = 15
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. Wacom Co., Ltd. (19 from 1,259 patents)
2. Kotobuki Co., Ltd. (8 from 294 patents)
3. Mitsubishi Pencil Company, Limited (2 from 384 patents)
29 patents:
1. D1010733 - Mechanical pencil
2. D1010002 - Ballpoint pen
3. D998038 - Writing instrument
4. D995628 - Ballpoint pen
5. D895728 - Ballpoint pen
6. D853489 - Ballpoint pen
7. D838778 - Ballpoint pen
8. D832920 - Ballpoint pen
9. D816166 - Ballpoint pen
10. D815686 - Ballpoint pen
11. 9110542 - Position detection apparatus with a magnetic flux detecting substrate
12. D716814 - Electronic pen
13. D708617 - Stylus pen
14. D708616 - Stylus pen with cap
15. D706267 - Stylus pen