Hiroshi Hanaoka

Title: Hiroshi Hanaoka: Innovator in Machine Tool Technology

Introduction

Hiroshi Hanaoka is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of machine tools, holding a total of 2 patents. His innovative designs focus on enhancing the efficiency and precision of machining processes.

Latest Patents

Hanaoka's latest patents include a spindle unit and a tool clamping device for machine tools. The spindle unit features a solid shaft main spindle made from a highly rigid material, such as cemented carbide. This main spindle is rotatably supported in a spindle head by bearings that are less prone to generating heat. The tool-clamping device includes an adapter attached to the front end of the main spindle, along with a tool holder that carries a rotary tool. One of the adapter and the holder comprises a short columnar lug, while the other features a cylindrical hole shrinkage-fitted on the lug. The member with the hole is constructed from a material that has a lower coefficient of thermal expansion compared to the other member. Additionally, the tool-clamping device is equipped with heating and cooling devices for temperature regulation.

Another significant patent is a measuring instrument that incorporates optical type displacement detecting devices within its relatively movable portions. Each optical type displacement detecting device consists of a main scale with alternating reflecting and non-reflecting portions, and an index scale with alternating light transmitting and non-light transmitting portions. A light-emitting element irradiates both scales, while a light-receiving element captures the reflected light to emit an electric signal corresponding to the relative displacement between the two scales. The main scale is also equipped with a disturbance preventing layer that absorbs light transmitted through the non-reflecting portions, preventing it from being reflected back to the index scale.

Career Highlights

Hanaoka has worked with prominent companies in the industry, including Kabushiki Kaisha Mori Seiki Seisakusho and Mitutoyo Manufacturing. His experience in these organizations has allowed him to refine his skills and contribute to advancements in machine tool technology.

Collaborations

Hanaoka has collaborated with notable coworkers, including Yoshinori Yamaguchi and Kentaro Shino. Their combined expertise has fostered innovation and development in their respective fields.

Conclusion

Hiroshi Hanaoka's contributions to machine tool technology through his patents and collaborations highlight