Yiyan Intelligent Manufacturing (Shanghai) Pharmaceutical Testing Instrument Co., Ltd. was established in 2007, founded by former technical experts from China Pharmaceutical University and several researchers from the Shanghai Institute of Optics. The company specializes in the development, production, and sales of pharmaceutical testing instruments. Leveraging the strong intellectual resources of universities and building on years of good cooperative relationships with the Chinese Pharmacopoeia Commission, the State Food and Drug Administration (SFDA), national/provincial/municipal drug testing institutes, and major pharmaceutical teaching/research institutions, the company continuously enhances its technological innovation capabilities and product quality. It has now evolved into a modern manufacturing enterprise focusing on integrated products in electronics, optomechatronics, and computer technology.

The company's main products include over 60 series and more than 120 varieties of pharmaceutical testing instruments, such as drug viscometers, drug penetrometers, plaster softening point testers, drug freezing point testers, drug rotational viscometers, dissolution testers, disintegration testers, tablet hardness testers, tablet friability testers, transdermal diffusion testers, and melting point testers. Its primary products cover all provinces and regions across the country, with some products already entering overseas markets. Through innovation and technological advancement, the company provides advanced solutions for the pharmaceutical industry. It continuously invests in research and development and technological innovation, maintains close ties with industry frontiers, and actively participates in the formulation and updating of industry standards.