Location History:
- Yokohama, JA (1977)
- Sakura, JP (1985)
- Tsukuba, JP (1991)
Company Filing History:
3 out of 1,430 
1 out of 348 Years Active: 1977-1991
Title: Masaru Shiraki: Innovator in Polymeric Compounds and Chlorophyll Separation
Introduction
Masaru Shiraki is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of polymeric compounds and methods for separating chlorophyll. With a total of 3 patents, his work has implications in both medical and agricultural applications.
Latest Patents
Shiraki's latest patents include innovative developments in polymeric compounds with sustained anti-tumor activity. The novel polymeric compound proposed in this invention features a backbone structure formed of a copolymeric moiety of maleic anhydride and divinyl ether. Pendant groups derived from anthracycline-type anti-tumor agents, such as adriamycin and daunomycin, are bonded to the maleic anhydride units. This design allows for sustained release of anti-tumor active pendant groups, significantly reducing side effects associated with traditional administration methods. Another patent focuses on a method for the separation of chlorophyll from photosynthesizing organisms like spinach. This method involves the use of organic solvents and a series of treatments to isolate crystalline chlorophyll effectively.
Career Highlights
Masaru Shiraki serves as the Director-General of the Agency of Industrial Science and Technology. His leadership in this role has facilitated advancements in industrial science and technology in Japan. His innovative work has garnered attention and respect within the scientific community.
Collaborations
Shiraki has collaborated with notable coworkers, including Akira Okada and Keiji Iriyama. Their combined expertise has contributed to the success of various projects and patents.
Conclusion
Masaru Shiraki's contributions to the fields of polymeric compounds and chlorophyll separation highlight his innovative spirit and dedication to scientific advancement. His work continues to influence both medical and agricultural practices, showcasing the importance of innovation in addressing real-world challenges.