Average Co-Inventor Count = 3.27
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. Sugatsune Kogyo Co., Ltd. (3 from 228 patents)
3 patents:
1. 11873673 - Single-axis hinge
2. 11284729 - Damper device set and cooling and/or freezing showcase
3. 11118389 - Retracting device and retracting device set