Average Co-Inventor Count = 3.70
ph-index = 9
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. Hitachi Koki Co., Ltd. (15 from 1,267 patents)
15 patents:
1. 8118204 - Portable fastening tool
2. D607814 - Battery pack
3. D595552 - Portable electric saw
4. D592028 - Portable electric hammer drill
5. D585716 - Portable electric driver
6. D582739 - Portable electric saw
7. D580247 - Portable electric driver
8. D567615 - Portable electric driver
9. D527969 - Portable electric hammer drill
10. D526873 - Portable electric hammer drill
11. D526874 - Portable nailing machine
12. D526552 - Portable nailing machine
13. D520837 - Portable electric hammer
14. D482254 - Portable electric drill
15. D449503 - Portable electric circular saw