Average Co-Inventor Count = 1.98
ph-index = 4
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. Kabushiki Kaisha Ishida Koki Seisakusho (4 from 127 patents)
2. Ishida Co. Limited (2 from 448 patents)
6 patents:
1. 6474141 - Seal inspecting machine
2. 5736684 - Combinational weighing or counting apparatus
3. 4661917 - Mixing combinatorial counting and weighing method, and apparatus therefor
4. 4574897 - Combinatorial weighing apparatus
5. 4467880 - Combinatorial weighing apparatus
6. 4421185 - Combinatorial weighing system