Average Co-Inventor Count = 1.76
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. Okamura Corporation (3 from 421 patents)
3 patents:
1. 12369714 - Chair
2. 10334953 - Furniture, load support member for chair, and chair
3. 9155393 - Chair