Average Co-Inventor Count = 1.25
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 Industrial Co., Ltd. (2 from 42 patents)
2. Seiko Instruments Information Devices, Inc. (2 from 7 patents)
3. T2 Design Co., Ltd. (1 from 1 patent)
5 patents:
1. D398593 - Tablet
2. D390208 - Stylus pen
3. 5693393 - Material for relief
4. D339736 - Caster
5. D334884 - Caster