Company Filing History:
3 out of 215 
3 out of 6 Years Active: 1998-2000
Title: Akihiro Yokoyama: Innovator in Xanthophyll Synthesis
Introduction
Akihiro Yokoyama is a notable inventor based in Shimizu, Japan. He has made significant contributions to the field of genetic engineering, particularly in the synthesis of xanthophylls. With a total of three patents to his name, Yokoyama's work has implications for various industries, including biotechnology and food production.
Latest Patents
Yokoyama's latest patents focus on DNA strands that are useful for the synthesis of keto group-containing xanthophylls, such as astaxanthin. These patents disclose several DNA strands that encode polypeptides with enzyme activities capable of converting specific groups in the xanthophyll synthesis pathway. For instance, one patent describes a DNA strand that encodes an enzyme for converting a methylene group at the 4-position of a beta-ionone ring into a keto group. Another patent details a DNA strand that facilitates the addition of a hydroxyl group to the 3-carbon of a 4-keto-beta-ionone ring. By introducing these DNA strands into microorganisms like Escherichia coli, a variety of xanthophylls can be produced, including canthaxanthin and astaxanthin.
Career Highlights
Throughout his career, Akihiro Yokoyama has worked with prominent companies such as Kirin Beer Company and Marine Biotechnology Institute Co., Ltd. His experience in these organizations has allowed him to apply his innovative ideas in practical settings, contributing to advancements in biotechnology.
Collaborations
Yokoyama has collaborated with notable individuals in his field, including Norihiko Misawa and Keiji Kondo. These partnerships have likely enhanced his research and development efforts, leading to successful innovations.
Conclusion
Akihiro Yokoyama's work in the synthesis of xanthophylls through genetic engineering showcases his innovative spirit and dedication to advancing biotechnology. His patents and collaborations reflect his significant impact on the field, paving the way for future developments.