Average Co-Inventor Count = 1.74
ph-index = 8
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. Daiwa Golf Co., Ltd. (5 from 43 patents)
2. Daiwa Seiko, Inc. (4 from 602 patents)
9 patents:
1. D410514 - Golf club head
2. D397180 - Golf club head
3. 5669824 - Iron club and iron club set
4. D380512 - Golf club head
5. D369393 - Golf putter head
6. 5465968 - Golf clubhead having beryllium face plate
7. D363748 - Golf club head
8. D360444 - Golf club head
9. 5411264 - Golf club head