Average Co-Inventor Count = 1.33
ph-index = 2
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. Sony Corporation (2 from 58,129 patents)
2. Heian Shindo Kogyo Co., Ltd. (1 from 3 patents)
3. Fujita Metal Mfg.co., Ltd. (1 from 1 patent)
4 patents:
1. D895354 - Removable handle for cookware
2. D867864 - Tension rod
3. D672332 - Connector
4. D659679 - Speaker box