Makoto Hattori

Title: The Innovative Contributions of Makoto Hattori

Introduction

Makoto Hattori is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of chemistry, particularly in the development of anthraquinone compounds. With a total of six patents to his name, Hattori's work has had a substantial impact on the industry.

Latest Patents

Hattori's latest patents include a method for producing anthraquinone compounds. These compounds are useful as intermediates for disperse dyes and as sublimable dyes for thermal transfer recording. The process involves allowing specific compounds to react with a cyanogenating agent in an aqueous medium, which is facilitated by the presence of polyalkylene glycols. Another notable patent is for the preparation of 1,4-diaminoanthraquinone-2,3-disubstituted compounds. This process economically produces intermediates for anthraquinone dyes by reacting 1,4-diamino-2,3-dihalogenoanthraquinone with alkalimetal sulfite in aqueous solution. The method also includes the recovery and reuse of quaternary ammonium or phosphonium compounds.

Career Highlights

Hattori is currently employed at Sumitomo Chemical Company, Limited, where he continues to innovate and develop new chemical processes. His work has been instrumental in advancing the production techniques of anthraquinone compounds, which are essential in various applications.

Collaborations

Hattori has collaborated with notable coworkers, including Akira Takeshita and Satoshi Kajitani. Their combined expertise has contributed to the successful development of innovative chemical processes.

Conclusion

Makoto Hattori's contributions to the field of chemistry through his patents and collaborations highlight his role as a significant inventor. His work continues to influence the industry and pave the way for future innovations.