PEKING UNIVERSITY DELICHEM CORPORATION LIMITED（Trade
Mark is Invisichrom for short） was found in 1994. The general manager
is Dr. Ruigang Yao. Based on the powerful research from the College
of Chemistry at Peking University(PKU), Invisichrom is a high-tech
enterprise specializing in the production of quality anti-counterfeiting
products. 
Our corporation has produced a series of security & anti-counterfeiting
pigments and printing inks, such as many kinds of fluorescent, infra-red
powder, security printing inks and fibers(or security papers) that
are sensitive to sun-light, UV, IR and temperature changing.
Also, we have been awarded the Class First Award by the Ministry
of Education from the People's Republic of China, and the Golden
Prize in the 5th International Exhibition of Packing Techniques.
Furthermore, our corporation has just developed a new, even more
intelligent anti-counterfeit technique, which has raised the bar
internationally and advanced the market.
Invisichrom has worked closely with the Government
of the People's Republic of China, and has collaborated with the
Department of General Logistics, as well as the Ministries of Public
Security, Education and Customs Bureau, etc.
The Trademark Bureau of Chinese State Administration for Industry
& Commerce has accredited the trademark of YAO′s head-portrait”
to our company. Our chinese registration number for the trademark
of Dr.YAO′s head-portrait ” is 3566795.
Challenge Limitation
Today (今日挑戰(zhàn)極限)
Create Glory Tomorrow (明天創(chuàng)造輝煌)
Challenge
Limitation Today Create Glory Tomorrow |
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