UPDATE — Patent Granted
The patent application described in this article was subsequently granted and registered in Japan as Japanese Patent No. 7752340 on October 2, 2025.
For the latest patent information, please see:
Toei Shinyaku Obtains Japanese Patent Based on Agaricus KA21 Research Related to Stress-Induced Cognitive Dysfunction
Toei Shinyaku Co., Ltd. obtained two U.S. patents for β-glucan measurement technologies developed through collaborative research on outdoor-cultivated Agaricus KA21 with the Department of Immunology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences.
The patented technologies concern methods for measuring β-glucans, which are major structural components found in fungi, including mushrooms. The research was conducted as part of Toei Shinyaku’s long-term scientific investigation of Agaricus KA21.
The corresponding technologies have also been patented in Japan.
Toei Shinyaku has conducted research on outdoor-cultivated Agaricus KA21 for more than 30 years and continues to develop scientific evidence and intellectual property through collaboration with universities and research institutions.
Agaricus KA21 is derived from outdoor-cultivated Agaricus brasiliensis and is commercially known as King Agaricus KA21.
Details
U.S. Patents: US 11,479,803 B2; US 11,542,307 B2
Corresponding Japanese Patents: Patent No. 7052967; Patent No. 6966756
Research Partner: Department of Immunology, School of Pharmacy, Tokyo University of Pharmacy and Life Sciences
News Release
English:https://en.atpress.com/news/409266