Average Co-Inventor Count = 4.90
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. Asaca Corporation (4 from 9 patents)
4 patents:
1. 6519222 - Automatic disc changing device
2. 6304525 - Disc inverting mechanism and disc automatic changer with the mechanism
3. 6154337 - Cassette transfer apparatus
4. 6094322 - Apparatus for automatically exchanging record medium cassettes between a