Fumio Arai

Title: Fumio Arai: Innovator in Optical Glass Molding Technology

Introduction

Fumio Arai is a notable inventor based in Numazu, Japan. He has made significant contributions to the field of optical glass molding, holding a total of 3 patents. His innovative methods and apparatus have advanced the technology used in the production of optical glass elements.

Latest Patents

One of Arai's latest patents is a method and apparatus for molding optical glass elements. This invention involves placing a glass blank on a lower mold, which is arranged in opposition to an upper mold. The molds and glass blank are heated by an infrared lamp unit or high-frequency coil, which is supported by a mechanism that allows it to move along the direction of the mold's movement. This adaptability is crucial, as the relative position of the heating unit may vary depending on the shape and size of the molds or the optical glass elements being produced. Temperature sensors attached to both molds ensure that the temperatures are maintained at desired levels for optimal molding.

Another patent focuses on the apparatus for molding optical glass elements, which consists of relatively movable upper and lower molds for press molding a glass blank. This apparatus is equipped with multiple infrared ray lamps that encircle the molds, along with temperature measuring devices. A controller responds to the outputs from these devices to regulate the electric inputs to the infrared lamps, thereby maintaining the molds at predetermined temperatures.

Career Highlights

Fumio Arai has worked with prominent companies in the industry, including Toshiba Kikai and Toshiba Machine Co., Ltd. His experience in these organizations has contributed to his expertise in optical glass technology and molding processes.

Collaborations

Throughout his career, Arai has collaborated with notable colleagues such as Yoshizo Komiyama and Yutaka Hasegawa. These partnerships have likely fostered innovation and development in their respective fields.

Conclusion

Fumio Arai's contributions to optical glass molding technology through his patents and career experiences highlight his role as an influential inventor. His work continues to impact the industry, paving the way for advancements in optical glass production.