This inventor holds 4 USPTO granted patents and 2 published patent applications. Top assignee: Tien Hsin Industries Co., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
3 out of 10 Years Active: 2026
Title: Chang-chun Kao: Innovator in Hub Motors and Electronic Derailleurs
Introduction
Chang-chun Kao is a notable inventor based in Taichung, Taiwan. He has made significant contributions to the fields of hub motors and electronic derailleurs. With a total of 4 patents to his name, Kao continues to push the boundaries of innovation in his industry.
Latest Patents
One of Kao's latest inventions is a hub motor. This hub motor includes an axle, a stator, a rotor, a casing, a sleeve, and a mounting seat. The axle features a first end, a second end, and a bump protruding from its radial-outer-side surface. The bump is strategically located on the side close to the second end in the extension direction. The stator is fixed to the axle near the first end, while the rotor is sleeved on the axle and pivots around the stator. The casing, which accommodates both the stator and the rotor, is also sleeved on the axle and driven by the rotor. Additionally, the sleeve is rotatably sleeved on the second end of the axle and connects to the casing. The mounting seat is connected to the axle and is sleeved on the bump.
Another significant patent is an electronic derailleur designed for bicycles. This electronic derailleur is mounted on the frame of a bicycle and includes a base portion for connecting to the frame, a movable portion, a first linkage, a second linkage, four pivot shafts, and a battery unit. The movable portion operates relative to the base portion, and both the first and second linkages are pivotally connected to the base and movable portions. The entire assembly functions as a four-bar linkage, allowing for smooth movement of the movable portion. One of the pivot shafts even contains a battery cavity for housing the battery unit.
Career Highlights
Chang-chun Kao is currently employed at Tien Hsin Industries Co., Ltd. His work at this company has allowed him to develop and patent innovative technologies that enhance the functionality of bicycles and other vehicles.
Collaborations
Kao has collaborated with talented individuals such as Shang-feng Lin and Ruei-Yo Lin. Their teamwork has contributed to the successful development of his inventions.
Conclusion
Chang-chun Kao is a prominent inventor whose work in hub motors and electronic derailleurs showcases
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile