Average Co-Inventor Count = 1.63
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. Nippon Seiki Co., Ltd. (3 from 258 patents)
2. Nippon Seiki K.k. (1 from 6 patents)
4 patents:
1. 10031341 - Head-up display device
2. 9513477 - Vehicular heads-up display device
3. 6411216 - Display device with indicators having increased brightness
4. 5494531 - Method and apparatus for cleaning medical instruments