Average Co-Inventor Count = 1.66
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. Sugatsune Kogyo Co., Ltd. (3 from 228 patents)
2. Nintendo Co., Ltd. (1 from 2,806 patents)
3. Pkm Corporation (1 from 1 patent)
4 patents:
1. 11767694 - Hinge
2. 10533358 - Hinge
3. 10113344 - Stay
4. 8032987 - Portable device and hinge assembly