Average Co-Inventor Count = 3.08
ph-index = 4
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. Fujitsu Corporation (6 from 39,228 patents)
2. Copal Company Limited (1 from 192 patents)
6 patents:
1. 6428125 - Deck apparatus equipped with a lock mechanism
2. 5793563 - Magnetic tape library apparatus having leader block engaging mechanism
3. 5781369 - Magnetic tape apparatus with an auxiliary entry/exit mechanism
4. 5673155 - Magnetic tape library apparatus having leader block engaging mechanism
5. 5402283 - Recording medium cartridge handling mechanism in library apparatus
6. 5313349 - Cartridge autoloading apparatus having two safety lock mechanisms