Location History:
- Omuta Fukuoka, JA (1976)
- Omuta, JA (1976)
Company Filing History:
Years Active: 1976
Title: Fumio Fujii: Innovator in Surface Active Agents and Dyestuffs
Introduction
Fumio Fujii is a notable inventor based in Omuta, Japan. He has made significant contributions to the field of chemistry, particularly in the development of surface active agents and dyestuffs. With a total of 2 patents, his work has had a considerable impact on the textile industry.
Latest Patents
Fumio Fujii's latest patents include a process for the preparation of surface active agents. These agents are obtained by reacting cresol, formaldehyde, sodium sulfite, and 2-hydroxynaphthalene in water under normal pressure. The resulting surface active agents exhibit excellent high dispersing power when finely ground with disperse dyes. They are effective in providing level dyeing to polyester fibers in high-temperature dyeing processes while minimizing cellulose staining in polyester/cellulose blended yarns or fabrics.
Another significant patent involves dyestuff mixtures and processes for dyeing polyester fibers. This patent discloses mixtures of water-insoluble monoazo dyestuffs, which are suitable for producing inexpensive navy shades with good fastness to light, washing, perspiration, sublimation, and heat setting. The improvement disclosed in this patent addresses difficulties encountered with these dyestuffs by using a mixture of at least two dyestuffs, enhancing the dyeing process.
Career Highlights
Fumio Fujii is currently associated with Mitsui Toatsu Chemicals, Incorporated, where he continues to innovate in the field of chemical engineering. His work has been instrumental in advancing the applications of surface active agents and dyestuffs in various industrial processes.
Collaborations
Fumio has collaborated with notable coworkers, including Ken Mukai and Tetsuo Watanabe. Their combined expertise has contributed to the successful development of innovative chemical solutions.
Conclusion
Fumio Fujii's contributions to the field of chemistry, particularly in surface active agents and dyestuffs, highlight his role as an influential inventor. His patents reflect a commitment to innovation and excellence in the textile industry.