Tetsuro Hosaka

Title: Tetsuro Hosaka: Injection Mold Innovation

Introduction

Tetsuro Hosaka is an inventor based in Tokyo, Japan, associated with Honda Motor Co., Ltd. His patent work includes an injection mold designed to reduce weld marks in molded components.

Latest Patents

Hosaka is credited with 1 patent, titled “Injection Mold.” The invention describes a mold with a ring-shaped gate that delivers molten resin into a central cavity. Multiple runners supply resin from a sprue to the gate. The gate includes an outer first ring with multiple inlets connected to the runners, and a thinner inner second ring with a circumferential slit-shaped outlet communicating with the cavity. A step between the rings connects them. This arrangement is intended to help mold a component with fewer weld marks.

Career Highlights

Hosaka’s listed patent reflects work on injection-molding design and the flow of molten resin through a mold. The disclosed structure focuses on improving the molded member’s surface quality by reducing visible weld marks.

Collaborations

Hosaka’s listed coworkers include Yukio Miyakoshi and Koshi Sato. The available information identifies these colleagues but does not specify their roles in the patent.

Conclusion

Tetsuro Hosaka’s patent describes a ring-gate injection mold designed to improve molding quality by reducing weld marks.