Company Filing History:
8 out of 219 
8 out of 486 Years Active: 2021-2025
Title: Biography of An-Kai Chang
Introduction
An-Kai Chang is a prominent inventor based in Taichung, Taiwan. He has made significant contributions to the field of optical technology, holding a total of 8 patents. His innovative designs have advanced the development of lens assemblies, showcasing his expertise in optics.
Latest Patents
Among his latest patents is a lens assembly that includes a first lens, a second lens, a third lens, a fourth lens, and a fifth lens. The first lens is a meniscus lens with negative refractive power, while the second lens possesses positive refractive power and features a convex surface facing the image side. The third lens is another meniscus lens with positive refractive power, followed by a fourth lens with positive refractive power and a fifth lens that also has refractive power, including a convex surface facing the object side. These lenses are arranged sequentially from the object side to the image side along an optical axis. Another notable patent involves a lens assembly comprising a first lens, a second lens, a third lens, a fourth lens, a sixth lens, a seventh lens, and an eighth lens, arranged in a similar manner. This assembly includes various lenses with different refractive powers, demonstrating Chang's innovative approach to lens design.
Career Highlights
An-Kai Chang has worked with several reputable companies in the optical industry, including Sintai Optical (Shenzhen) Co
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.