Average Co-Inventor Count = 1.71
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. Tanashin Denki Co., Ltd. (2 from 94 patents)
2. Tenashin Denki Co., Ltd (1 from 2 patents)
3 patents:
1. 6330216 - Recording medium transfer apparatus
2. 6169719 - Car-mounted disc/tape player
3. 5005745 - Apparatus for preventing tape from being rolled