Location History:
- Osaka, JP (1982)
- Kishiwada, JP (1982 - 1985)
Company Filing History:
Years Active: 1982-1985
Title: Innovations of Junzaburo Seino
Introduction
Junzaburo Seino is a notable inventor based in Kishiwada, Japan. He has made significant contributions to the field of dye chemistry, holding a total of 3 patents. His work focuses on developing innovative compounds and methods for producing dyestuff powders.
Latest Patents
One of Seino's latest patents is for a compound known as 2-Cyano-4-nitro-6-chlorophenylazo 3-acetyl. This compound is characterized by a specific formula where R¹ is methyl or ethyl, R² and R³ are each C₅ or C₆ alkyl, and Z is chlorine. It is designed for use as a blue disperse dye for hydrophobic fibers, either alone or in combination with anthraquinone. This compound offers a low-cost alternative to anthraquinone while providing superior stability in the dye bath and excellent dyeability. The mixed dyes retain the brilliance of color imparted by anthraquinone, along with good color fastness, dyeability, and reproducibility characteristics.
Another significant patent involves a method for producing dyestuff powders through spray drying. This method utilizes a spray dryer that includes a drying room with an inlet for hot air and an outlet for discharging hot air with dyestuff powders. The atomizer is positioned at the upper part of the drying room, and the production parameters are meticulously controlled to ensure optimal temperatures and air velocity during the drying process.
Career Highlights
Junzaburo Seino is currently associated with Sumitomo Chemical Company, Limited, where he continues to innovate in the field of dye production. His expertise and contributions have been instrumental in advancing the company's capabilities in dye chemistry.
Collaborations
Seino has collaborated with notable coworkers, including Hirohito Kenmochi and Hiroshi Ikeda. Their combined efforts have led to advancements in the development of new dye compounds and production methods.
Conclusion
Junzaburo Seino's work exemplifies innovation in the dye industry, with his patents reflecting a commitment to improving dye stability and production efficiency. His contributions continue to influence the field and enhance the capabilities of his company.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.