Average Co-Inventor Count = 3.05
ph-index = 7
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. (13 from 1,267 patents)
2. Koki Holdings Co., Ltd. (4 from 211 patents)
17 patents:
1. D1106944 - Battery adapter
2. D1102369 - Battery
3. D962031 - Portable electric driver body
4. D867843 - Portable electric saw
5. D850740 - Engine blower
6. D849495 - Portable electric circular saw
7. D844681 - Table cutting machine
8. D811453 - Table circular saw
9. D800650 - Battery pack
10. D799929 - Portable electric hammer drill
11. 9693470 - Electric device with surrounding protective frame
12. D780687 - Battery
13. D735006 - Portable electric driver
14. D726142 - Radio receiver
15. D706591 - Pruning machine