Michiharu Ogawa

Title: Michiharu Ogawa and Optical Fiber Connector Innovation

Introduction

Michiharu Ogawa is an inventor associated with Tosoh Corporation in Yamaguchi, Japan. His patent work includes an optical fiber connector component and a process for producing it. The patent record provided lists 1 patent for Ogawa.

Latest Patents

Ogawa’s patent, “Optical Fiber Connector Part and Process for Producing the Same,” describes a connector component with a ferrule that holds an optical fiber in a capillary hole. The ferrule is made from a zirconia-alumina composite oxide containing 2 to 4 mol% yttria in the zirconia. The patent also describes a connecting sleeve made from zirconia, a zirconia-alumina composite oxide, or both.

The production process uses granular zirconia-alumina made from a particulate mixture with an average particle diameter of no more than 1 micrometer. The mixture preferably contains 0.1% to 50% alumina by weight, and the process includes spray-drying a slurry of the fine particles. According to the patent description, the resulting ferrule maintains a stable spherical tip face and resists deformation during long-term connection, while the granular material offers favorable sintering characteristics.

Career Highlights

Ogawa’s listed work connects materials engineering with the practical demands of optical fiber connections. The patent focuses on ceramic composition and manufacturing methods intended to support durable, precisely shaped connector components. Tosoh Corporation is identified as his company.

Collaborations

Kuniyoshi Ueda and Toshihiko Arakawa are listed as Ogawa’s coworkers. Their names are associated with the collaborative context provided for his patent work.

Conclusion

Michiharu Ogawa’s patent describes a zirconia-alumina ferrule and a production process designed to improve the stability and durability of optical fiber connectors.