Average Co-Inventor Count = 3.12
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. Matsushita Electric Industrial Co., Ltd. (8 from 27,375 patents)
8 patents:
1. 5363268 - Tape cassette
2. 5331498 - Tape cassette including a locking slider
3. 5231551 - Cassette loading device for a magnetic recording/reproducing apparatus
4. 4807077 - Short time recording tape cassette having a larger open space than that
5. 4803574 - Arrangement of recording and/or reproducing apparatus
6. 4757397 - Minature tape loading device
7. 4517613 - Magnetic recording and playback apparatus
8. 4491885 - Magnetic recording/playback device