Hironori Kitajima

Title: Hironori Kitajima and His Heat Pipe Cooling Invention.

Introduction

Hironori Kitajima is an inventor associated with Tsuchiura, Japan. His work includes patents related to cooling technology and railcar control equipment. He holds 3 patents.

Latest Patents

Kitajima’s latest listed patent is “Heat Pipe Type Cooling Device and Railcar Control Equipment Using the Same.” The invention describes an economical, high-performance heat pipe cooling device designed to start reliably in environmental temperatures below 0°C, along with railcar control equipment that uses the device.

The design uses the heat pipe’s middle section, between two bends, as the evaporator. Its two condenser sections have different lengths, and the longer section has more heat-radiating fins. This arrangement gives the condenser sections different cooling capacities. At low temperatures, the shorter condenser section can continue cooling heat-generating components even if the longer section is affected by freezing. At ordinary temperatures, the device provides effective cooling.

Career Highlights

Kitajima’s listed company affiliations include Hitachi Power Solutions Co., Ltd. and Hitachi Cable, Inc. His patent work reflects an application of heat pipe technology to thermal management in railcar control equipment.

Collaborations

His listed coworkers include Hitoshi Sakayori and Yuuzou Shiraishi.

Conclusion

Hironori Kitajima’s patented cooling design addresses the challenge of maintaining reliable thermal performance across both ordinary and subzero conditions, with a particular application in railcar control equipment.