Junichi Kakumoto

Title: Junichi Kakumoto: Innovations in Electrical Connecting Parts

Introduction

Junichi Kakumoto is an inventor associated with Kitakyushu, Japan. His work focuses on copper-based connecting parts designed to support reliable electrical connections. He is credited with 4 patents.

Latest Patents

Kakumoto’s latest patent work addresses mating-type connecting parts and methods for producing them. One invention describes a copper sheet with carefully controlled surface characteristics, including roughness, spacing between surface features, and peak height. The sheet is stamped and surface-roughened to create parallel depressions, then plated with copper and tin and subjected to reflowing.

The resulting structure has parallel tin surface-coating lines, with a copper-tin alloy coating adjacent to each side of each tin line. The patent describes surface specifications intended to support sliding during connection while limiting insertion-direction roughness.

Related patent work covers copper alloys and electrically conductive materials for connecting parts, as well as the mating-type connecting part and its production method. Together, these inventions describe a manufacturing approach that combines surface shaping, plating, and reflowing to produce functional electrical connectors.

Career Highlights

Kakumoto’s listed company affiliations include Kobe Steel, Ltd. and Shinko Leadmikk Co., Ltd. His patent work reflects an emphasis on materials and manufacturing processes for electrical connection components.

Collaborations

His listed coworkers include Yasushi Masago and Toshiyuki Mitsui. Their names are associated with the collaborative technical work described in the patent information provided.

Conclusion

Junichi Kakumoto’s inventions focus on engineered copper surfaces and coating structures for mating-type electrical connectors. His patent work highlights how controlled surface features and production methods can contribute to the design of connecting parts.