This inventor holds 3 USPTO granted patents. Top assignees: Kyowa Hakko Kogyo Kabushiki Kaisha, Kyowa Hakko Kogyo Co., Ltd., The B. F. Goodrich Company. Active years: 1988-1992.
Company Filing History:
2 out of 45 
1 out of 730 
1 out of 1,484 Years Active: 1988-1992
Title: Koji Hisamura: Innovator in Polyurethane and Antitumor Agents
Introduction
Koji Hisamura is a notable inventor based in Mie, Japan. He has made significant contributions to the fields of polyurethane compositions and antitumor agents. His innovative work has led to the filing of three patents, showcasing his expertise and dedication to advancing technology.
Latest Patents
His latest patents include a polyurethane composition that emphasizes hydrophilicity and hydrolysis resistance. This invention aims to enhance the performance and durability of polyurethane materials. Additionally, he has developed mitomycin derivatives that serve as potent antileukemia agents. These derivatives exhibit significant antitumor activity, demonstrating Hisamura's commitment to addressing critical health challenges.
Career Highlights
Throughout his career, Koji Hisamura has worked with prominent companies such as Kyowa Hakko Kogyo Kabushiki Kaisha and Kyowa Hakko Kogyo Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in his field.
Collaborations
Hisamura has collaborated with esteemed colleagues, including Tokuyuki Kuroda and Tohru Sugaya. These partnerships have fostered a creative environment that has led to the development of impactful inventions.
Conclusion
Koji Hisamura's contributions to the fields of polyurethane and antitumor agents highlight his innovative spirit and dedication to improving technology and health. His work continues to inspire future advancements in these critical areas.