Average Co-Inventor Count = 3.72
ph-index = 18
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. (43 from 1,267 patents)
2. Koki Holdings Co., Ltd. (5 from 209 patents)
48 patents:
1. D1047638 - Portable electric saw
2. D1029049 - Router
3. D1023908 - Battery
4. D951735 - Band saw
5. D919560 - Storage battery
6. D850740 - Engine blower
7. D849795 - Engine
8. D849495 - Portable electric circular saw
9. 10252279 - Centrifuge having light emitting part
10. D844558 - Storage battery
11. D823087 - Portable electric drill
12. D780687 - Battery
13. D752769 - Centrifuge
14. D730139 - Hammer
15. D684272 - Centrifuge