Average Co-Inventor Count = 3.23
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. Mitsumi Electric Company Ltd. (9 from 1,572 patents)
2. Hewlett-packard Company (1 from 9,638 patents)
9 patents:
1. 9106110 - Power generating device and switch
2. 7777984 - Cartridge holder apparatus and magnetic recording/reproduction apparatus including same
3. 7742256 - Cartridge slot door mechanism for covering cartridge slot
4. 7619851 - Cartridge holder with a cartridge height position locking mechanism accommodating tape cartridges of differing tape widths
5. 7408736 - Magnetic recording/reproducing apparatus
6. 7379263 - Magnetic recording/reproducing apparatus
7. 7375920 - Magnetic recording/reproducing apparatus
8. 5794874 - Tape guiding pole angle adjusting mechanism
9. 5758835 - Magnetic tape apparatus for controlling a back tension of a magnetic