Average Co-Inventor Count = 4.75
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. Hitachi, Ltd. (1 from 42,517 patents)
2. Yamaha Hatsudoki Kabushiki Kaisha (1 from 4,244 patents)
3. Hitachi-High-Technologies Corporation (1 from 2,874 patents)
4. Hitachi High-Tech Instruments Company, Ltd. (1 from 43 patents)
4 patents:
1. 10452050 - Positioning system
2. 10201120 - Component mounting apparatus
3. 10008361 - Charged particle beam device and installation method
4. 8353424 - Component feeder