Average Co-Inventor Count = 2.14
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. (3 from 27,375 patents)
2. Hosiden Corporation (1 from 776 patents)
3. Kyoto Tool Co., Ltd. (1 from 7 patents)
4 patents:
1. 7832286 - Torque wrench
2. 6704495 - Audio-video device reproducing apparatus
3. D261882 - Record player
4. 4039194 - Automatic record player