Location History:
- Toyonaka, JP (1996 - 2003)
- Niihama, JP (1997 - 2013)
- Ehime, JP (2001 - 2017)
Company Filing History:
20 out of 6,894 
1 out of 27 Years Active: 1996-2017
Title: Narutoshi Hayashi: Innovator in Polarizing Technology
Introduction
Narutoshi Hayashi is a prominent inventor based in Niihama, Japan. With a remarkable portfolio of 20 patents, he has made significant contributions to the field of optical technologies, particularly in polarizing films and their applications in liquid crystal displays.
Latest Patents
Hayashi's recent work includes innovative patents like the "Polarizer, process for preparing the same, optical member and liquid crystal displaying apparatus." The primary goal of this invention is to create a polarizer that is not only thin and lightweight but also exhibits durability. This polarizer integrates a protective film made of epoxy resin on at least one side of the polarizing film. The production process involves coating an uncured epoxy resin composition onto the polarizing film and curing it to form the protective layer. Furthermore, this invention outlines an optical member that combines the polarizer with other optical layers, culminating in a liquid crystal displaying apparatus that enhances reliability in mobile devices.
Another significant patent by Hayashi is the "Method for producing iodine type polarizing film." This method details a process in which a polyvinyl alcohol film, soaked with iodine, is oriented in an aqueous solution that contains boric acid while minimizing exposure to oxygen. The resulting polarizing film boasts high contrast, making it highly valuable for optical applications.
Career Highlights
Throughout his career, Narutoshi Hayashi has worked with notable companies like Sumitomo Chemical Company, Limited and Okura Industrial Co., Ltd. His expertise in polymer chemistry and optical technology has led to impactful innovations that drive advancements in display technology.
Collaborations
Hayashi has collaborated with esteemed colleagues such as Koji Matsumoto and Toru Ashida. Together, they have contributed to the development of advanced optical members and polarizing solutions, enhancing the capabilities of visual display technologies.
Conclusion
Narutoshi Hayashi's dedication to innovation in polarizing technology illustrates his significant role in advancing optical applications. His patents not only improve the functionality of liquid crystal displays but also set the stage for future innovations in the industry. With a keen focus on durability and reliability, Hayashi continues to be a vital figure in the world of optics.