Average Co-Inventor Count = 2.90
ph-index = 17
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. Seiko Epson Corporation (200 from 33,216 patents)
2. Sieko Epson Corporation (1 from 14 patents)
3. Seiki Epson Corporation (1 from 1 patent)
202 patents:
1. 12352966 - Optical module and display device
2. 12332441 - Display device and optical unit
3. 12306401 - Display module having light-shielding portions with apertures having different shapes, virtual display apparatus, and manufacturing method for light-guiding optical device
4. 12292574 - Optical module, virtual image display device, and light-guiding device
5. 12259535 - Optical unit and image display device
6. 12189125 - Virtual image display device and optical unit
7. 12147048 - Virtual image display device
8. 12099189 - Display device and optical unit
9. 12044852 - Virtual image display apparatus
10. 12026324 - Electronic apparatus
11. 11947115 - Virtual image display apparatus comprising an optical unit having a projection optical system, a turning mirror, a transmission mirror, and a concave mirror
12. 11940632 - Virtual image display device
13. 11927754 - Virtual image display device and optical unit
14. 11796816 - Virtual image display apparatus
15. 11754839 - Display module and display device