Average Co-Inventor Count = 4.00
ph-index = 3
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. Other (1 from 832,718 patents)
2. Ishihara Chemical Co., Ltd. (1 from 26 patents)
3. Daiwa Fine Chemicals Co., Ltd. (1 from 10 patents)
4. Hyogo Prefectural Government (1 from 3 patents)
5. Obata, Doni, Daiwa, Fine Chemicals Co., Ltd. (1 from 1 patent)
6. Ishibara Chemical Co., Ltd. (1 from 1 patent)
7. Obata, Dohi, Daiwa Fine Chemicals Co. Ltd. (1 from 1 patent)
8. Ishihaa Chemical Co., Ltd. (1 from 1 patent)
4 patents:
1. 4673470 - Tin, lead, or tin-lead alloy plating bath
2. 4555314 - Tin-lead alloy plating bath
3. 4459185 - Tin, lead, and tin-lead alloy plating baths
4. 4132610 - Method of bright electroplating of tin-lead alloy