Location History:
- Kanagawa, JP (2006)
- Yokohama, JP (2013 - 2019)
- Osaka, JP (2019 - 2024)
Company Filing History:
24 out of 10,264 
2 out of 2,107 
2 out of 6,171 
Years Active: 2006-2025
Title: Innovator Kazuyuki Sohma: Pioneering Advances in Optical Fiber Technology
Introduction
Kazuyuki Sohma, a distinguished inventor based in Yokohama, Japan, holds an impressive portfolio of 22 patents. Throughout his career, he has made significant contributions to the field of optical fiber technology, showcasing his expertise and innovative spirit.
Latest Patents
Some of Kazuyuki Sohma's latest patents focus on advancements in optical fibers and their manufacturing processes. One notable patent describes an optical fiber that features a glass fiber, which includes a core and cladding. The design also incorporates a specialized coating resin layer that interacts harmoniously with the glass fiber. This innovation consists of a primary resin layer and a secondary resin layer, where the primary layer contains a cured product from a photopolymerizable compound and a phosphine oxide-based photopolymerization initiator. Importantly, the patent specifies that the amount of the phosphine oxide-based initiator remaining unreacted in the coating is 0.5 mass % or less.
Another patent outlines a resin composition intended for coating optical fibers. This composition comprises a base resin that includes an oligomer, monomer, photopolymerization initiator, and hydrophobic inorganic oxide particles. Within this formulation, the oligomer is specifically noted to comprise urethane (meth)acrylate and epoxy (meth)acrylate, with a mass ratio of at least 0.25 between them.
Career Highlights
Kazuyuki Sohma has been associated with notable companies such as Sumitomo Electric Industries, Limited and Autonetworks Technologies, Limited. His work at these organizations has contributed significantly to the advancements in optical technology and innovation, further cementing his reputation as a leading figure in the industry.
Collaborations
Throughout his career, Sohma has collaborated with talented professionals, including Yuya Homma and Kensaku Shimada. These partnerships have fostered innovation and development in his field, enabling him to push the boundaries of optical fiber technology.
Conclusion
Kazuyuki Sohma's contributions to optical fiber technology and his impressive patent portfolio reflect his dedication to innovation. His work not only highlights his personal achievements but also marks significant progress in the optical industry, paving the way for future advancements.