This inventor holds 1 USPTO granted patent. Top assignee: Chunwoo Tech., Ltd. Active years: 2020.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2020
Title: Sang-Jin Kim and Stainless Steel Surface Treatment
Introduction
Sang-Jin Kim is an inventor associated with Busan, South Korea, and Chunwoo Tech., Ltd. His work includes a patent for treating stainless steel surfaces to remove scale and rust and to form a passive film.
Latest Patents
The provided information lists one patent for Kim: “Pickling and Passive Film Treating Agent for Removing Scales and Rusts on Welding Parts of Stainless Steel Pipes and Structures.” The invention describes a composition for treating welded and rust-affected areas on stainless steel pipes, structures, and plants. It uses a neutral agent made by adjusting a basic aqueous solution to a pH of 6.9 to 7.1 and aerating it with carbon-dioxide-free air to increase dissolved oxygen. The process is designed to produce an oxidation-reduction potential between 170 mV and 310 mV, supporting the formation of a passive film on the stainless steel surface. Kim’s listed patent portfolio comprises 1 patent.
Career Highlights
Kim’s documented patent work focuses on stainless steel surface treatment, particularly the removal of scale and rust from welded areas and the formation of a protective passive film. He is associated with Chunwoo Tech., Ltd.
Collaborations
Sung-Sik Park is identified as Kim’s coworker. The provided information does not specify whether Park collaborated on the patent.
Conclusion
Sang-Jin Kim’s listed invention addresses practical maintenance and surface protection needs for stainless steel pipes and structures through a neutral pickling and passivation treatment.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile