Company Filing History:
1 out of 677 
1 out of 98 Years Active: 1986
Title: Keigi Koyama: Innovator in Aqueous Preparations
Introduction
Keigi Koyama is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of aqueous preparations, particularly those containing vitamin E. His innovative work has implications across various industries, including pharmaceuticals, cosmetics, and food.
Latest Patents
Koyama holds a patent for an "Aqueous preparation containing vitamin E and saponins." This preparation is characterized by its excellent transparency and thermal stability, achieved by emulsifying or solubilizing vitamin E in an aqueous phase with the presence of saponins. Quillaiasaponin is identified as the preferred saponin in this formulation, which broadens its applicability in medicines, cosmetics, foodstuffs, and animal feeds.
Career Highlights
Throughout his career, Koyama has worked with prominent companies such as Eisai Company, Limited and Asahi Denka Kogyo Kabushiki Kaisha. His experience in these organizations has allowed him to refine his expertise in the development of innovative aqueous preparations.
Collaborations
Koyama has collaborated with notable colleagues, including Yoichi Shirakawa and Makoto Itoh. Their combined efforts have contributed to advancements in the field of aqueous preparations.
Conclusion
Keigi Koyama's work in developing aqueous preparations containing vitamin E showcases his innovative spirit and dedication to improving various industries. His contributions continue to influence the fields of medicine, cosmetics, and food.