Patents/Inventors

Koujiro Ohkawa

TokyoJP2 patents

3 Patents

US123795382025
Light-guide Plate, Area Light Source Device, Display Device, Manufacturing Method for Light Guide Plate
Dai Nippon Printing Co., Ltd.
0 cites
US122354862025
Light-guide Plate, Area Light Source Device, Display Device, Manufacturing Method for Light Guide Plate
Dai Nippon Printing Co., Ltd.
0 cites
US120928532024
Light-guide Plate, Area Light Source Device, Display Device, Manufacturing Method for Light Guide Plate
Dai Nippon Printing Co., Ltd.
0 cites