Average Co-Inventor Count = 5.00
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. Other (1 from 832,812 patents)
2. Sanyo Electric Co., Ltd. (1 from 8,780 patents)
3. Tottori Sanyo Electric Co., Ltd. (1 from 143 patents)
4. Shimane Sanyo Industrial Co., Ltd. (1 from 2 patents)
2 patents:
1. 6236571 - Attachment device of portable electronic equipment and feature expanding unit of portable electronic equipment, and separation type feature expanding device of portable electronic equipment comprising attachment device and feature expanding unit
2. 5959835 - Attachment device of portable electronic equipment and feature expanding