Average Co-Inventor Count = 2.71
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. Yoshida Industry Co., Ltd. (7 from 76 patents)
2. Pola Chemical Industries, Inc. (2 from 94 patents)
7 patents:
1. 6386209 - Cosmetic case
2. 6311701 - Cosmetic case
3. 6192895 - Cosmetic case
4. 5111972 - Creamy substance container
5. 4883079 - Make-up tool and holder assembly
6. 4580586 - Vanity case
7. 4505607 - Retractable-type cosmetic container with removable base