Takahisa Yamaguchi

Title: Takahisa Yamaguchi: Innovator in Optical Fiber Technology

Introduction

Takahisa Yamaguchi is a prominent inventor based in Osaka, Japan, known for his significant contributions to the field of optical fiber technology. With a remarkable portfolio of three patents, Yamaguchi exemplifies the spirit of innovation in an industry that plays a crucial role in modern communication and technology.

Latest Patents

Among his latest inventions, Yamaguchi has developed a novel optical fiber comprising a glass fiber that includes a core and a cladding. This optical fiber features a primary resin layer in contact with the glass fiber, which is then covered by a secondary resin layer. The unique formulation of the primary resin layer consists of a cured product derived from a resin composition containing a urethane (meth)acrylate oligomer, a monomer, a photopolymerization initiator, and an aromatic acid compound. The careful selection of the aromatic acid compound's content—ranging from 20 ppm to 12,000 ppm—addresses specific durability and performance criteria, achieving a Young's modulus of 0.6 MPa or less at 23° C ± 2° C.

Additionally, Yamaguchi's work includes a method for manufacturing optical fiber which involves a comprehensive coating process. This method describes a step-by-step coating of a glass fiber with ultraviolet ray curable resin compositions, followed by an innovative dual irradiation process to cure the layers, ensuring superior adhesion and performance of the optical fiber.

Career Highlights

Takahisa Yamaguchi is affiliated with Sumitomo Electric Industries, Limited, a leading company renowned for its advancements in electric and communication materials. His notable career in this esteemed organization highlights his commitment to pushing the boundaries of optical communication technology.

Collaborations

During his tenure, Yamaguchi has had the opportunity to collaborate with esteemed colleagues such as Noriaki Iwaguchi and Haruki Okuyama. These professional relationships not only enhance the innovation ecosystem within the company but also contribute to the development of cutting-edge optical solutions benefiting the broader technology landscape.

Conclusion

Takahisa Yamaguchi stands out as an influential inventor whose work significantly impacts the advancement of optical fiber technology. His patents showcase a meticulous approach to innovation, combining scientific knowledge with practical applications. As technologies continue to evolve, Yamaguchi’s contributions remain vital in shaping the future of optical communications.