Hitoshi Sashiwa

Title: Hitoshi Sashiwa: Innovator in PHA Production

Introduction

Hitoshi Sashiwa is a notable inventor based in Settsu, Japan. He has made significant contributions to the field of biotechnology, particularly in the production of polyhydroxyalkanoates (PHA). His innovative work focuses on improving the crystallization speed and productivity of PHA copolymers.

Latest Patents

Hitoshi Sashiwa holds a patent for a microorganism that has PHA synthase-coding genes and a method for producing PHA using the same. The objective of this invention is to enhance the crystallization speed of a PHA copolymer that is slowly crystallized, thereby improving melt workability and productivity. The microorganism utilized in this process contains genes encoding two or more different PHA synthases derived from a specific genus. These genes include at least two PHA synthases capable of synthesizing a copolymer PHA, which includes 3-hydroxybutyric acid and 3-hydroxyhexanoic acid as monomer unit species. The unique aspect of this invention is that the PHA synthases differ in substrate specificity toward 3-hydroxyhexanoic acid. When cultured, this microorganism produces a PHA mixture that includes three or more PHA species with different melting points.

Career Highlights

Hitoshi Sashiwa is associated with Kaneka Corporation, where he continues to advance his research and development efforts. His work has been instrumental in the field of bioplastics, contributing to sustainable solutions for various industries.

Collaborations

Hitoshi collaborates with notable colleagues such as Shingo Kobayashi and Tetsuya Fujiki, who share his commitment to innovation in biotechnology.

Conclusion

Hitoshi Sashiwa's contributions to the field of PHA production exemplify the importance of innovation in biotechnology. His patented work not only enhances the efficiency of PHA production but also paves the way for sustainable materials in various applications.