Junichi Kawakami

Title: Junichi Kawakami: Inventor of a Multi-Pole Circuit Interrupter

Introduction

Junichi Kawakami is an inventor associated with Fukuyama, Japan, and Mitsubishi Electric Corporation, the commonly used English name for Mitsubishi Denki Kabushiki Kaisha. His recorded patent concerns a multi-pole circuit interrupter designed to coordinate circuit protection and trip indication.

Latest Patents

Kawakami’s listed patent is titled “Multi-pole circuit interrupter.” It describes a device with first and second pole units separated by a partition wall, each containing a pair of separable contacts. A crossbar connects the contacts so they move simultaneously. When an overcurrent triggers the operating mechanism in the first pole unit, an actuator transfers the tripping action through the partition wall to an alarm switch in the second pole unit. The actuator uses a rotatable shaft, an arm moved by the operating mechanism, and a lever that engages the alarm switch. This arrangement enables the interrupter to signal that it has tripped while keeping its pole units separated.

The supplied information lists 1 patent for Kawakami.

Career Highlights

Kawakami’s documented invention addresses the practical engineering challenge of transmitting a trip signal between separated sections of an electrical protection device. The patent’s shaft-and-actuator arrangement links the operating mechanism to an alarm switch while supporting coordinated operation of the interrupter’s contacts.

Collaborations

Haruhisa Toda is identified as Kawakami’s coworker. The available information does not specify their particular roles or contributions to the patent.

Conclusion

Junichi Kawakami’s listed patent reflects a focused contribution to circuit-interrupter design, combining coordinated contact movement with a mechanism for indicating an overcurrent trip.