Average Co-Inventor Count = 4.00
ph-index = 1
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. Koa Kabushiki Kaisha (1 from 10 patents)
2. Soldercoat Co., Ltd. (1 from 3 patents)
3. Okabe Giken Co., Ltd. (1 from 1 patent)
1 patent:
1. 7220493 - Lead-free solder, and a lead-free joint