Hideharu Tokiwa

Title: Innovations of Hideharu Tokiwa

Introduction

Hideharu Tokiwa is a notable inventor based in Niza, Japan. He has made significant contributions to the field of optical fibers and fluoride glass technology. With a total of 7 patents, Tokiwa's work has advanced the manufacturing processes and applications of optical fibers.

Latest Patents

Among his latest patents is a method and apparatus for manufacturing a preform for fluoride glass fiber. This innovative approach eliminates the need for pouring a glass melt into a mold from a crucible, allowing for the creation of long, homogeneous fluoride glass fiber preforms that are free from foreign substances and air bubbles. This method also facilitates the fabrication of preforms with an elliptic core portion, which is essential for drawing polarized wave retaining fibers. Another significant patent is a fusion splicing method for optical fibers. This method involves fusion splicing optical fibers in an inert gas atmosphere, where water adsorbed on their surfaces is removed through decomposition in a plasma of an inert gas containing a halogen.

Career Highlights

Tokiwa has worked with prominent companies such as Kokusai Denshin Denwa Kabushiki Kaisha and Kokusai Denshin Denwa Co., Ltd. His experience in these organizations has contributed to his expertise in optical fiber technology and manufacturing processes.

Collaborations

Throughout his career, Tokiwa has collaborated with notable individuals, including Osamu Shinbori and Yoshinori Mimura. These collaborations have further enriched his work and innovations in the field.

Conclusion

Hideharu Tokiwa's contributions to the field of optical fibers and fluoride glass technology are significant. His innovative patents and collaborations have paved the way for advancements in manufacturing processes. Tokiwa's work continues to influence the industry and inspire future innovations.