Yoshiaki Ukai

Title: Yoshiaki Ukai: A Pioneer in Multilayer Coating Technology

Introduction

Yoshiaki Ukai is an accomplished inventor based in Aichi-ken, Japan, known for his innovative work in the field of multilayer coating technologies. With two patented inventions to his name, Ukai has made significant contributions to the industry, specifically in the development of advanced coating methods that enhance color properties and durability.

Latest Patents

Yoshiaki Ukai's most recent patents include a groundbreaking method for forming a multilayer coating film. This method entails the sequential application of a first colored paint (X), a second colored paint (Y), and a clear paint (Z) onto a substrate. The innovative technique involves heating the three layers either separately or simultaneously to properly cure them. The first colored coating film achieves a lightness (L*) in the range of 30 to 60, while the second colored coating film boasts specific light transmittance properties at a wavelength of 400 nm or more and 700 nm or less, falling between 15% and less than 30%. Furthermore, the difference between hue angles in the L*C*h color space for the first colored coating and the multilayer coating film is controlled, maintaining a range of 0 to 30.

Additionally, his other patent offers a method for forming a multilayer coated film on an object, which consists of three essential steps. The first step involves applying a colored coating material, including an iron-oxide-coated aluminum pigment and a quinacridone pigment, to create a first colored coated film. This step is crucial for achieving specific light reflectance properties. The second step sees the application of a second colored coating material that incorporates a perylene pigment, while the final step entails applying a clear coating material. Notably, a color difference (ΔE) between the first colored coated film and the final multilayer coated film is designed to fall within the range of 20 to 30.

Career Highlights

Throughout his professional journey, Yoshiaki Ukai has held noteworthy positions at prominent companies, including Kansai Paint Company, Ltd., and Toyota Jidosha Kabushiki Kaisha. His experience in these leading organizations has undoubtedly contributed to his expertise in coating technologies and innovations.

Collaborations

Yoshiaki Ukai has collaborated with fellow industry professionals, including Kazuhide Sato and Hiroshi Murata. These partnerships have fostered the exchange of ideas and techniques, further advancing the field of multilayer coatings.

Conclusion

Yoshiaki Ukai's work exemplifies the spirit of innovation within the coatings industry. With his two patents focusing on multilayer coating methods, Ukai continues to pave the way for advancements that enhance aesthetic appeal and functional properties of coated products. As he engages with top companies and collaborates with fellow inventors, Ukai's contributions represent a significant leap forward in coating technology.