This inventor holds 4 USPTO granted patents. Top assignee: Nippon Paint Compnay, Ltd.. Active years: 1985-1996.
Location History:
- Joyo, JP (1987)
- Chiba, JP (1985 - 1996)
Company Filing History:
Years Active: 1985-1996
Title: Takeyasu Ito: Innovator in Metal Surface Treatment
Introduction
Takeyasu Ito is a prominent inventor based in Chiba, Japan. He has made significant contributions to the field of metal surface treatment, holding a total of 4 patents. His work focuses on developing environmentally friendly solutions for cleaning and treating aluminum and aluminum alloys.
Latest Patents
Among his latest patents is an acidic cleaning aqueous solution specifically designed for aluminum and aluminum alloys. This innovative solution allows for effective cleaning without the use of harmful fluoride and chloride ions. The process involves controlling the oxidation-reduction potential of the cleaning bath to a range of 0.5 to 0.8 V (vs. Ag-AgCl). The solution is created by diluting an acidic cleaning aqueous solution to a predetermined volume, containing specified amounts of inorganic acids, Br⁻ ions, and oxidized metal ions. The addition of a surfactant and oxidizing agent, when necessary, ensures a uniform etching effect even at low temperatures below 60°C. Furthermore, the inclusion of Br⁻ ions helps inhibit the oxidation-decomposition reaction of the surfactant, resulting in a long-lasting cleaning solution.
Another notable patent is an anticorrosive metal surface pretreating composition. This composition consists of an aqueous emulsion of hard polymer microparticles combined with a water-soluble chromium compound. The polymer microparticles are produced through emulsion polymerization of α,β-unsaturated monomers, including polyfunctional monomers or those capable of forming polymers with specific Tg values. The presence of trivalent chromium enhances the effectiveness of the composition.
Career Highlights
Takeyasu Ito is currently employed at Nippon Paint Company, Ltd., where he continues to innovate in the field of metal surface treatment. His work has garnered attention for its focus on sustainability and efficiency in cleaning processes.
Collaborations
He has collaborated with notable coworkers, including Teruaki Kuwajima and Satoshi Urano, contributing to advancements in their respective fields.
Conclusion
Takeyasu Ito's contributions to the field of metal surface treatment exemplify his commitment to innovation and environmental responsibility. His patents reflect a deep understanding of chemistry and engineering, paving the way for safer and more effective cleaning solutions.