Company Filing History:
Years Active: 2018-2023
Title: Yuji Hotta - Innovator in Black Plated Resin Technology
Introduction
Yuji Hotta is a notable inventor based in Kiyosu, Japan. He has made significant contributions to the field of materials science, particularly in the development of black plated resin parts. With a total of 3 patents to his name, Hotta's work has garnered attention for its innovative approaches and practical applications.
Latest Patents
One of Yuji Hotta's latest patents is a method for producing a black plated resin part. This method involves electroplating a resin substrate that has an underlying plating layer in a trivalent chromium plating bath containing thiocyanic acid. The process results in the formation of a black chromium plating layer composed of trivalent chromium, which has a thickness of 0.15 μm or more. Additionally, the resin substrate is immersed in warm water at 30°C or higher for a predetermined time. The parameters of thiocyanic acid concentration, warm water temperature, and immersion time are carefully adjusted to achieve a black chromium plating layer that exhibits a b* value of -1.7 or less based on the L*a*b* color system.
Another patent by Hotta focuses on the black plated resin part itself. This part consists of a resin substrate, an underlying plating layer, and a black chromium plating layer formed of trivalent chromium. The black chromium plating layer, which is at least 0.15 μm thick, is characterized by the presence of metallic chromium, chromium oxide, and chromium hydroxide. It also exhibits a b* value of 3.0 or less according to the L*a*b* color system.
Career Highlights
Yuji Hotta is currently employed at Toyoda Gosei Co., Ltd., where he continues to innovate in the field of materials technology. His work has not only advanced the understanding of black plating processes but has also contributed to the practical applications of these materials in various industries.
Collaborations
Throughout his career, Hotta has collaborated with talented individuals such as Koji Nakatani and Hiroaki Ono. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.
Conclusion
In summary, Yuji Hotta is a distinguished inventor whose work in black plated resin technology has led to significant advancements in the