Location History:
- Berchem, BE (1987)
- Ibaraki, JP (1990)
- Kanzaki-gun, JP (1998)
- Settsu, JP (1986 - 2003)
- Hyogo, JP (2003)
- Hyogo-ken, JP (2003)
- Hyogo-Pref, JP (2003)
Company Filing History:
7 out of 1,707 
3 out of 698 
Years Active: 1986-2003
Title: Naruhiko Akamatsu: Innovator in Polyolefin Technology
Introduction
Naruhiko Akamatsu, an esteemed inventor based in Settsu, Japan, has made significant contributions to the field of polyolefin technology. With a portfolio of 10 patents to his name, Akamatsu is recognized for his innovative approaches in creating high-quality pre-expanded polyolefin particles. His work emphasizes efficiency and consistency, addressing key challenges within the industry.
Latest Patents
His latest patents focus on processes for preparing polyolefin pre-expanded particles. One of his most notable innovations is a process that produces pre-expanded particles of polyolefin resin characterized by less fluctuation in expansion ratio, uniform particle size, and a low expansion ratio ranging from 2 to 10 times, preferably between 3 to 8 times. This method does not rely on volatile foaming agents, enhancing safety and sustainability.
Another significant patent discusses a hydrous polyolefin resin composition that combines a polyolefin resin with a hydrophilic polymer. This composition allows for achieving pre-expanded particles with an apparent expansion ratio of 5 to 60, a closed cell ratio of 80 to 100%, and an average cell diameter of 50 to 500 micrometers. The innovative approach involves dispersing resin particles in an aqueous medium, heating them to the appropriate temperature, and subsequently releasing them into a lower pressure environment, resulting in particles with superior physical properties and high expansion ratios.
Career Highlights
Akamatsu's career showcases a strong association with leading companies in the field. He has worked at Kaneka Corporation and Kanegafuchi Kagaku Kogyo Kabushiki Kaisha, where he contributed to pioneering advancements in resin technology. His dedication to research and development has positioned him as a prominent figure in his industry.
Collaborations
Throughout his career, Akamatsu has collaborated with several talented individuals, including Yutaka Yanagihara and Tsuyoshi Mihayashi. These partnerships have enriched his work, allowing for shared expertise and innovative approaches to challenges in the development of polyolefin materials.
Conclusion
Naruhiko Akamatsu stands as a remarkable inventor whose advancements in polyolefin technology have made a lasting impact on the industry. His focus on developing processes that yield efficient and high-quality products illustrates his commitment to innovation. As he continues to refine his techniques, Akamatsu exemplifies the spirit of invention that drives technological progress.