Kouji Hayama

Title: The Innovations of Kouji Hayama

Introduction

Kouji Hayama is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of optical information mediums and coatings. With a total of 4 patents to his name, his work has had a considerable impact on the industry.

Latest Patents

Hayama's latest patents include an optical information medium that features a light transmission layer. This layer is created by curing a composition containing a urethane di(meth)acrylate and another urethane di(meth)acrylate. The resulting medium has a tensile elastic modulus of 600 to 1300 MPa at 25°C and a light transmittance of 80% or more at a wavelength of 400 nm. Another significant patent is for an active energy ray curable composition for coating optical discs. This composition includes a urethane (meth)acrylate compound with at least one amide group, an ethylenically unsaturated compound, and a photopolymerization initiator. The optical disc produced from this composition features a cured coating layer.

Career Highlights

Throughout his career, Kouji Hayama has worked with prominent companies such as Mitsubishi Rayon Company, Limited and TDK Corporation. His experience in these organizations has allowed him to refine his skills and contribute to innovative projects.

Collaborations

Hayama has collaborated with notable coworkers, including Juichi Fujimoto and Seiji Nushi. Their combined expertise has likely enhanced the quality and impact of their inventions.

Conclusion

Kouji Hayama's contributions to the field of optical information mediums and coatings demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology in this area.