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. Ohkura Electric Co., Ltd. (2 from 20 patents)
2. Ntt Data Communications Systems Corporation (2 from 15 patents)
3. Texas Instruments Japan Limited (2 from 14 patents)
2 patents:
1. 5199071 - Modem mode matching method with PBX dial-in
2. 5153897 - Automatically controlling the operation mode of data circuit terminating