Average Co-Inventor Count = 4.34
ph-index = 11
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. (11 from 27,375 patents)
2. Panasonic Corporation (8 from 16,453 patents)
3. Yuyama Mfg. Co., Ltd. (1 from 249 patents)
4. Matsushita Electric Indusrial (1 from 1 patent)
21 patents:
1. 8944281 - Upright vial discharge unit
2. 8468274 - Digital data distribution system with switching unit, online acquisition unit, and conversion unit for converting from first to second format
3. 8077980 - Image processing apparatus
4. RE42019 - Distribution system, semiconductor memory card, receiving apparatus, computer-readable recording medium and receiving method
5. 7814168 - Unit-to-unit data exchange system, and unit, exchange completion data keeping device and program for use in the same
6. RE41096 - Distribution system, semiconductor memory card, receiving apparatus, computer-readable recording medium and receiving method
7. 7624199 - Digital data distribution system with switching unit, online acquisition unit, and conversion unit for converting from first to second format
8. 7571488 - Rights management terminal, server apparatus and usage information collection system
9. 7451202 - Information management system having a common management server for establishing secure communication among groups formed out of a plurality of terminals
10. 7194091 - Content using system
11. 7103663 - License management server, license management system and usage restriction method
12. 7096504 - Distribution system, semiconductor memory card, receiving apparatus, computer-readable recording medium and receiving method
13. 6993133 - Data recording and reproduction apparatus
14. 6901385 - Semiconductor memory card that records contents for trial and purchase, recording apparatus, reproducing apparatus, and sales method
15. 6865552 - Data copying system, data copying apparatus, data copying method, and recording medium