Average Co-Inventor Count = 2.64
ph-index = 5
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. Teac Corporation (7 from 1,030 patents)
2. Hitachi Maxell, Limited (1 from 1,112 patents)
3. Hitachi Maxwell, Ltd. (1 from 56 patents)
4. Taec Corporation (1 from 1 patent)
8 patents:
1. 5798899 - Tape cartridge with an upper case wall cover plate
2. 5583711 - Greater capacity writing method for a belt-driven tape cartridge or the
3. 5372321 - Tape transport apparatus having pulley and pulley drive motor provided
4. 5315462 - Cartridge loading device having side-locking mechanism
5. 5277352 - Reduced height tape driver
6. 5272579 - Mechanism for loading tape cartridge into tape driving apparatus
7. D331926 - Magnetic tape cassette
8. 4748526 - Head cleaning cassette for magnetic tape cassette apparatus