Inventor · disambiguated record
Chengheng Tsai
Also filed as: TSAI CHENGHENG
15 granted patents·7 pending applications·17 citations·filing 2019–2025
87Inventor score
Top patents by PatentIndex Score
22 records- 0197US11360350B2Optical sheet, backlight unit, liquid crystal display device, and information deviceKEIWA INC·Filed 2021·Granted Jun 14, 2022·8 cites·15 claims
- 0296US11150512B2Optical sheet, backlight unit, liquid crystal display device, and information deviceKEIWA INC·Filed 2020·Granted Oct 19, 2021·4 cites·15 claims
- 0386US12135479B2Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unitKEIWA INC·Filed 2024·Granted Nov 5, 2024·2 cites·10 claims
- 0482US12292648B2Optical sheet, backlight unit, liquid crystal display device, and information deviceKEIWA INC·Filed 2023·Granted May 6, 2025·0 cites·15 claims
- 0582US11143914B2Multilayer of light diffusers, backlight unit, and liquid crystal display deviceKEIWA INC·Filed 2019·Granted Oct 12, 2021·3 cites·9 claims
- 0681US12313935B2Light diffusion sheet, back-light unit, liquid crystal display device, information apparatus, and method for manufacturing back-light unitKEIWA INC·Filed 2024·Granted May 27, 2025·0 cites·11 claims
- 0780US12345980B2Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unitKEIWA INC·Filed 2024·Granted Jul 1, 2025·0 cites·13 claims
- 0879US12085807B2Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unitKEIWA INC·Filed 2024·Granted Sep 10, 2024·0 cites·9 claims
- 0975US11886075B2Optical sheet, backlight unit, liquid crystal display device, and information deviceKEIWA INC·Filed 2022·Granted Jan 30, 2024·0 cites·11 claims
- 1075US2025251626A1Light diffusion sheet, back-light unit, liquid crystal display device, information apparatus, and method for manufacturing back-light unitKEIWA INC·Filed 2025·Application pending·0 cites
- 1175US2025258407A1Light diffusion sheet, back-light unit, liquid crystal display device, information apparatus, and method for manufacturing back-light unitKEIWA INC·Filed 2025·Application pending·0 cites
- 1274US12510783B2Light diffusion sheet, backlight unit, liquid crystal display device, and information equipmentKEIWA INC·Filed 2023·Granted Dec 30, 2025·0 cites·16 claims
- 1374US2025251627A1Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unitKEIWA INC·Filed 2025·Application pending·0 cites
- 1469US12174489B2Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unitKEIWA INC·Filed 2024·Granted Dec 24, 2024·0 cites·10 claims
- 1566US12197073B2Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unitKEIWA INC·Filed 2024·Granted Jan 14, 2025·0 cites·16 claims
- 1665US12105376B2Optical sheet, backlight unit, liquid crystal display apparatus, and information deviceKEIWA INC·Filed 2022·Granted Oct 1, 2024·0 cites·17 claims
- 1764US12393078B2Light diffusion sheet, light diffusion sheet laminate, backlight unit, and liquid crystal display deviceKEIWA INC·Filed 2022·Granted Aug 19, 2025·0 cites·12 claims
- 1862US2025076706A1Light-diffusing sheet, backlight unit, liquid crystal display device, and information apparatusKEIWA INC·Filed 2024·Application pending·0 cites
- 1962US2025180948A1Light diffusion sheet, light diffusion sheet laminate, backlight unit, and liquid crystal display deviceKEIWA INC·Filed 2025·Application pending·0 cites
- 2057US11493803B2Display device and light-diffusing sheet stacked bodyNICHIA CORP·Filed 2021·Granted Nov 8, 2022·0 cites·12 claims
- 2144US2023359085A1Optical sheet, backlight unit, and liquid crystal display deviceKEIWA INC·Filed 2021·Application pending·0 cites
- 2244US2020409218A1Diffusion sheet, backlight unit, liquid crystal display device, and information equipmentKEIWA INC·Filed 2020·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →