Location History:
- Shinada, JP (1987)
- Shibuya, JP (1989)
- Machida, JP (2009 - 2016)
- Tokyo, JP (1986 - 2019)
Company Filing History:
17 out of 1,237 
3 out of 359 
1 out of 1,714 
Years Active: 1986-2019
Title: The Innovative Journey of Kohei Arakawa: A Leader in Retardation Film Technology
Introduction: Kohei Arakawa, an accomplished inventor based in Tokyo, Japan, holds a remarkable portfolio of 21 patents. His innovative contributions to the field of retardation film technology have significantly advanced optical materials used in various applications, particularly in display technologies.
Latest Patents: Among his latest patents, Arakawa has developed a cutting-edge method for producing retardation films. This method involves co-extruding or simultaneously casting two different thermoplastic resins to create a laminated film. The process ensures precise molecular orientation by uniaxially stretching the film to align the molecular axes at right angles. Additionally, Arakawa has patented a protective film for polarizing plates. This film comprises multiple layers of thermoplastic resin, engineered to maintain specific refractive index relationships, ensuring optimal performance in displays. The innovative design minimizes in-plane retardation, making it a key advancement in the field.
Career Highlights: Kohei Arakawa has made a significant impact in the industry through his roles at Zeon Corporation and Nikkiso Company Limited. His work has focused on the development and optimization of plastic materials, particularly in enhancing optical performance through advanced engineering techniques. His dedication to research and development has earned him recognition as a leading expert in his field.
Collaborations: Throughout his career, Arakawa has collaborated with various talented individuals, including Shunsuke Yamanaka and Tetsuya Toyoshima. These collaborations have fostered a creative and innovative environment, allowing for the successful development of groundbreaking technologies in the field of optical materials.
Conclusion: Kohei Arakawa's impressive patent portfolio and his contributions to retardation film technology underscore his status as a pioneering inventor. His continued efforts to innovate in the realm of optical materials will undoubtedly influence the future of display technologies and inspire the next generation of inventors.