Average Co-Inventor Count = 5.00
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. Nippon Sanso Kabushiki Kaisha (1 from 24 patents)
2. Seiichi Ito (0 patent)
3. Seigou Nishino (0 patent)
4. Nobuyoshi Itoh (0 patent)
5. Masato Kawai (0 patent)
6. Kiyoshi Ohno (0 patent)
1 patent:
1. 5144945 - Portable oxygen-enriching air inhaler