Average Co-Inventor Count = 1.82
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. Panasonic Intellectual Property Management Co., Ltd. (3 from 13,289 patents)
2. Hitachi Industries Co., Ltd. (1 from 15 patents)
4 patents:
1. D926852 - Image projection prism
2. D863393 - Prism for 360-degree panoramic image projection
3. D846016 - Prism for 360-degree panoramic image projection
4. 7128523 - Drainage pump and underwater bearing unit