Location History:
- Thukubogun, JP (1993)
- Tukubogun, JP (1995)
- Kiyone, JP (1996)
- Kiyone-Village, JP (1999)
- Okayama, JP (1999 - 2000)
Company Filing History:
7 out of 1,868 
3 out of 27,375 
Years Active: 1993-2000
Title: Innovations of Syunpei Naramura
Introduction
Syunpei Naramura is a notable inventor based in Okayama, Japan. He has made significant contributions to the field of materials science, particularly in the development of advanced fibers for various applications. With a total of 7 patents to his name, Naramura's work focuses on enhancing the performance and sustainability of materials used in batteries and other industrial applications.
Latest Patents
Naramura's latest patents include innovative designs for separators used in batteries. One of his key inventions is a separator for a battery comprising a fibrillatable fiber. This fiber features a sea-islands phase separation, where the sea component consists of a vinyl alcohol-based polymer with high orientation and great crystallinity. The islands component is made of a water-insoluble cellulose-based polymer, which exhibits excellent absorptivity of alkaline solutions, thermal resistance, and heat fusion resistance. The size of the islands ranges from 0.03 to 10 µm, and the strength is 3 g/d or more. This fiber can be readily disintegrated into a fibril with a diameter of 0.05 to 8 µm when mechanical stress is applied while wet in water. The resulting fibril possesses good hydrophilicity, high strength, and excellent reinforcing performance, making it highly useful for separator sheets in alkaline batteries, as well as reinforcing fibers in cement slate plates and frictional materials.
Career Highlights
Throughout his career, Naramura has worked with prominent companies such as Kuraray Co., Ltd. and Matsushita Electric Industrial Co., Ltd. His experience in these organizations has allowed him to refine his expertise in material development and innovation.
Collaborations
Naramura has collaborated with notable colleagues, including Akio Ohmory and Tomoyuki Sano. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.
Conclusion
Syunpei Naramura's contributions to the field of materials science, particularly in battery technology, highlight his innovative spirit and dedication to advancing industrial applications. His patents reflect a commitment to creating sustainable and high-performance materials that can significantly impact various industries.