Average Co-Inventor Count = 4.61
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. Kabushiki Kaisha Toshiba (3 from 52,766 patents)
2. Nippon Steel Corporation (1 from 3,568 patents)
4 patents:
1. 5191202 - Photoelectric conversion device
2. 4989017 - Thermal print head
3. 4944786 - Apparatus for manufacturing thermal print head
4. 4613805 - Conveyor system