CT

Chengheng TSAI

KI Keiwa Incorporated: 5 patents #1 of 15Top 7%
Overall (2025): #25,116 of 469,880Top 6%
5
Patents 2025

Issued Patents 2025

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
12393078 Light diffusion sheet, light diffusion sheet laminate, backlight unit, and liquid crystal display device Satoshi Shiba, Yu KARIYA 2025-08-19
12345980 Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unit Hiroaki Ueno 2025-07-01
12313935 Light diffusion sheet, back-light unit, liquid crystal display device, information apparatus, and method for manufacturing back-light unit 2025-05-27
12292648 Optical sheet, backlight unit, liquid crystal display device, and information device Motohiko Okabe, Takahiro Tsuji, Masayuki Sukigara 2025-05-06
12197073 Optical sheet laminate, backlight unit, liquid crystal display device, information equipment, and production method for backlight unit 2025-01-14