Average Co-Inventor Count = 2.00
ph-index = 5
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. Tokyo Tatsuno Co., Ltd. (5 from 22 patents)
5 patents:
1. 4926032 - Reader and/or writer for IC card
2. 4835375 - Device for reading/writing IC card as external memory
3. 4833310 - Device for reading and writing magnetic and/or IC card as external memory
4. 4724310 - Device for inserting and holding an IC card as an external memory during
5. 4602351 - Device for reading and writing IC-external storage cards