Average Co-Inventor Count = 3.16
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. (3 from 209 patents)
16 patents:
1. D1102369 - Battery
2. D962031 - Portable electric driver body
3. D867843 - Portable electric saw
4. D850740 - Engine blower
5. D849495 - Portable electric circular saw
6. D844681 - Table cutting machine
7. D811453 - Table circular saw
8. D800650 - Battery pack
9. D799929 - Portable electric hammer drill
10. 9693470 - Electric device with surrounding protective frame
11. D780687 - Battery
12. D735006 - Portable electric driver
13. D726142 - Radio receiver
14. D706591 - Pruning machine
15. D684272 - Centrifuge