Average Co-Inventor Count = 3.00
ph-index = 5
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, Ltd. (21 from 42,494 patents)
21 patents:
1. 7665651 - Method of joining two members by friction stir welding
2. 7562802 - Friction stir welding method and structure body formed
3. 7520104 - Friction stir welding member
4. 7513409 - Friction stir welding method and structure body
5. 7416769 - Friction stir welding member
6. 7413107 - Friction stir welding method and structure body
7. 7287683 - Method of joining two members by friction stir welding
8. 7178303 - Friction stir welding hollow frame member
9. 7114304 - Friction stir welding member
10. 7073701 - Method of joining two members by friction stir welding
11. 7056594 - Friction stir welding method and structure body
12. 7032804 - Friction stir welding method and structure body
13. 7032805 - Manufacturing method of structure body and structure body formed
14. 6983873 - Friction stir welding method and structure body formed
15. 6978923 - Friction stir welding method