Hiroshi Sasaki

Title: Hiroshi Sasaki: Inventor in Power Management and Communications

Introduction

Hiroshi Sasaki is an inventor associated with Miyagi, Japan. His work includes inventions in power management, battery charging, and portable communications. He is credited with 10 patents.

Latest Patents

One of Sasaki’s latest patents, “Power Source Device and Charge Controlling Method to Be Used in Same,” describes a system designed to charge a secondary cell reliably despite fluctuations in solar power. A solar-cell module charges an electric double-layer capacitor, which then supplies power to a booster-type DC-DC converter. A control circuit monitors the capacitor’s voltage, starting and stopping charging according to high and low voltage thresholds.

Another patent, “Power Circuit and Communication Device Provided with Same,” concerns battery-powered portable communication terminals using TDMA or TDD signals. The circuit charges a power accumulator during periods when the transmitter is not sending a burst. During transmission bursts, the accumulator supplements the battery’s current-limited output, helping provide the higher power required by the amplifier.

Career Highlights

Sasaki’s listed company affiliations include NEC TOKIN Corporation and Fujitsu Corporation. His patent work reflects an emphasis on practical power circuits for electronic devices and communication systems.

Collaborations

Sasaki’s listed coworkers include Takayuki Sasaki and Hideaki Ono. Their names are associated with his professional and patent-related work.

Conclusion

Hiroshi Sasaki’s inventions address challenges in stable solar-powered charging and the delivery of power to portable communication devices. His patents illustrate a focus on managing energy efficiently under changing operating conditions.