LEE WAI HON has a total of 11 patent applications. Its first patent ever was published in 1986. It filed its patents most often in United States, EPO (European Patent Office) and Canada. Its main competitors in its focus markets audio-visual technology, optics and semiconductors are SANYO OPTEC DESIGN CO LTD, KATAYAMA RYUICHI and PENCOM INT.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 6 | |
#2 | EPO (European Patent Office) | 2 | |
#3 | Canada | 1 | |
#4 | Japan | 1 | |
#5 | Republic of Korea | 1 |
# | Industry | |
---|---|---|
#1 | Audio-visual technology | |
#2 | Optics | |
#3 | Semiconductors | |
#4 | Machines |
# | Technology | |
---|---|---|
#1 | Special information storage | |
#2 | Devices using light amplification | |
#3 | Semiconductor devices | |
#4 | Unspecified technologies | |
#5 | Optical systems |
# | Name | Total Patents |
---|---|---|
#1 | Lee Wai-Hon | 10 |
#2 | Lee Wai Hon | 1 |
Publication | Filing date | Title |
---|---|---|
US2010008070A1 | Back light module with diffractive couplers | |
US5156999A | Packaging method for semiconductor laser/detector devices | |
US5050153A | Semiconductor laser optical head assembly | |
CA1275731C | Optical head having a hologram lens and polanzed for use with magnetic-opticmedium | |
US4794585A | Optical head having a hologram lens and polarizers for use with magneto-optic medium | |
US4731772A | Optical head using hologram lens for both beam splitting and focus error detection functions | |
US4757197A | Semiconductor laser and detector device |