Average Co-Inventor Count = 3.20
ph-index = 4
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. Hitachi, Ltd. (3 from 42,494 patents)
2. Other (1 from 832,812 patents)
3. Hitachi Device Engineering Co., Ltd. (1 from 217 patents)
4 patents:
1. 7068261 - Liquid crystal display device with a touch panel
2. 6456279 - Liquid crystal display device with a touch panel
3. 6124919 - Half reflection type liquid crystal display device having matched phase
4. 4955695 - Liquid crystal display device