Average Co-Inventor Count = 5.46
ph-index = 2
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. Tokyo Shibaura Denki Kabushiki Kaisha (1 from 2,916 patents)
2. Toshiba Corporation (1 from 193 patents)
2 patents:
1. 4482837 - Rotary anode for an X-ray tube and a method for manufacturing the same
2. 4303848 - Discharge lamp and method of making same