Average Co-Inventor Count = 4.29
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. Matsushita Electric Industrial Co., Ltd. (4 from 27,375 patents)
2. Matushita Electric Industrial Co., Ltd. (1 from 28 patents)
5 patents:
1. 6430147 - Disk cartridge and adapter
2. 6392987 - Disk cartridge and adapter with locking and misinsertion preventing mechanism for the cover
3. 6288999 - Disk cartridge and adapter
4. 6172962 - Disk cartridge with finger-like holding members and three-part supporting feature
5. 5493457 - Optical disk apparatus with cooling arrangement