Location History:
- Suwon-si, KR (2014)
- Seoul, KR (2015 - 2023)
Company Filing History:
3 out of 18,700 
1 out of 8,089 
Years Active: 2014-2023
Title: The Innovative Contributions of Hyun Duk Chang
Introduction
Hyun Duk Chang is a notable inventor based in Seoul, South Korea. He has made significant contributions to the field of engineering, particularly in hydraulic systems and manufacturing processes. With a total of three patents to his name, Chang's work reflects a commitment to innovation and technological advancement.
Latest Patents
One of Hyun Duk Chang's latest patents is an electric oil pump for hydraulic control and an oil supplying system provided with the same. This invention includes a motor with a motor cover and a motor case, housing a stator and rotor. The pump features a pump case that forms a pump chamber, along with a gear rotor connected to the rotor through a motor shaft. Notably, the design incorporates multiple oil circulation holes and a connecting hole to facilitate efficient oil flow.
Another significant patent is a method of manufacturing a control finger using metal powder injection molding. This process involves mixing metal powder with a binder to create a base material for injection molding. The base material is injected into a mold shaped like the control finger, followed by degreasing and sintering to form a final sintered body. This innovative method enhances the manufacturing capabilities in the industry.
Career Highlights
Hyun Duk Chang has worked with prominent companies such as Hyundai Motor Company and Kia Motors Corporation. His experience in these leading automotive firms has allowed him to apply his inventive skills in practical settings, contributing to advancements in vehicle technology.
Collaborations
Chang has collaborated with notable coworkers, including Sung Yong Cho and Jong Yop Kim. Their combined expertise has fostered a creative environment that encourages innovation and the development of new technologies.
Conclusion
Hyun Duk Chang's contributions to engineering and technology through his patents and career achievements highlight his role as a significant inventor in the industry. His work continues to influence advancements in hydraulic systems and manufacturing processes.