Average Co-Inventor Count = 6.46
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. Nabtesco Corporation (1 from 379 patents)
2. Kajima Corporation (1 from 150 patents)
3. Nippon Steel & Sumikin Coated Sheet Corporation (1 from 11 patents)
2 patents:
1. 7589285 - Magnetic shield panel
2. 7501588 - Magnetic shielding door and magnetic shielding room