Average Co-Inventor Count = 2.91
ph-index = 3
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. (10 from 1,572 patents)
2. Other (2 from 832,880 patents)
12 patents:
1. 8479274 - Personal verification device
2. 7240872 - Guide roller including a pair of bearing having bearings flanges for retaining a pair of firm disk-shaped annular flanges
3. 6922306 - Tape recording and reproduction apparatus capable of stable operation with reduced wear
4. 6885516 - Magnetic recording and reproduction apparatus including gear mechanism
5. 6678111 - Magnetic tape recording/reproducing apparatus having a tape guide post mechanism in that a tilt of the tape guide post is restricted
6. 6634535 - Roller shaft
7. 6592063 - Chucking confirming method
8. 6481045 - Capstan shaft cleaning device
9. 6417984 - Magnetic recording/reproduction apparatus
10. 6404583 - Magnetic tape recording/reproducing apparatus
11. 6398095 - Magnetic tape recording/reproducing apparatus
12. 6369976 - Magnetic tape recording/reproducing apparatus with a cam to detect operating mode shift