Yasuhiro Hayashi is a prominent inventor based in Tochigi, Japan. He has made significant contributions to the field of enzyme technology, particularly in the development of highly productive α-amylases. With a total of six patents to his name, Hayashi's work has had a substantial impact on various industrial applications.

Latest Patents

Hayashi's latest patents include innovations related to mutant α-amylases. One of his notable inventions involves mutant α-amylases that can be produced at high yield from recombinant microorganisms. This invention focuses on the replacement or deletion of specific amino acid residues, such as the 167th Gln, 169th Tyr, and 178th Ala, in the amino acid sequence of α-amylases. The resulting mutant α-amylase exhibits excellent properties, including high resistance to chelating agents, high specific activity in alkaline conditions, and remarkable heat stability. These characteristics make it particularly useful for detergents used in automatic dishwashers and laundry applications.

Career Highlights

Yasuhiro Hayashi is currently employed at Kao Corporation, a leading company in the consumer goods and chemical industry. His work at Kao has allowed him to focus on the development of innovative enzyme solutions that enhance product performance and sustainability.

Collaborations

Hayashi collaborates with esteemed colleagues such as Hiroshi Hagihara and Kazuaki Igarashi. Their combined expertise contributes to the advancement of enzyme technology and the successful implementation of innovative solutions in various applications.

Conclusion

Yasuhiro Hayashi's contributions to enzyme technology through his patents and work at Kao Corporation highlight his role as a key innovator in the field. His developments in mutant α-amylases are paving the way for more efficient and effective industrial applications.

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