CHI HSIANG OPTICS CO LTD has a total of 17 patent applications. It increased the IP activity by 16.0%. Its first patent ever was published in 2016. It filed its patents most often in United States, China and Taiwan. Its main competitors in its focus markets computer technology, optics and audio-visual technology are YECHENG TECH CHENGDU CO LTD, CHANGSHA YUSHUN DISPLAY TECH CO LTD and LIU CHEN-YU.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 9 | |
#2 | China | 5 | |
#3 | Taiwan | 3 |
# | Industry | |
---|---|---|
#1 | Computer technology | |
#2 | Optics | |
#3 | Audio-visual technology | |
#4 | Machines |
# | Technology | |
---|---|---|
#1 | Electric digital data processing | |
#2 | Optical systems | |
#3 | Image data processing | |
#4 | Cameras | |
#5 | Data recognition and presentation | |
#6 | Nonlinear optics | |
#7 | Television | |
#8 | Producing goods from plastic |
# | Name | Total Patents |
---|---|---|
#1 | Yao Po Hung | 8 |
#2 | Yao Po-Hung | 7 |
#3 | Chang Hsien-Ching | 3 |
#4 | Yao Bo-Hong | 2 |
#5 | Zhang Xian-Jing | 2 |
#6 | Chen Feng Chih | 2 |
#7 | Chang Hsien Ching | 2 |
#8 | Chen Feng-Chih | 1 |
#9 | Chen Feng-Zhi | 1 |
Publication | Filing date | Title |
---|---|---|
TWI691768B | Viewing angle control film and display device using the same | |
CN108983999A | Digital pen | |
US2018172979A1 | Optical film and user input system | |
US2018039337A1 | Optical film and user input system | |
US2018046326A1 | Optical film and user input system | |
US2017293371A1 | Optical film and user input system | |
TW201814475A | Handwriting interactive display device and handwriting interactive reading device providing a high-sensitivity and high-accuracy electronic writing function | |
TW201804299A | Interactive display and reading system capable of providing an interactive operation function and further providing a highly sensitive and highly accurate writing function |