Hirofumi Hino

Title: Hirofumi Hino: Innovator in X-ray Technology

Introduction

Hirofumi Hino is a notable inventor based in Noda, Japan. He has made significant contributions to the field of medical imaging technology, particularly in the development of inverter type X-ray apparatuses. With a total of 6 patents to his name, Hino's work has advanced the efficiency and effectiveness of X-ray systems.

Latest Patents

Hino's latest patents include an inverter type X-ray apparatus that features a unique design. This apparatus comprises an inverter with multiple switching elements that operate alternately to generate an AC voltage with a rectangular waveform. A high voltage transformer transforms this AC voltage into a high AC voltage, which is then rectified into a DC voltage by a high voltage rectifier circuit. The X-ray tube utilizes this DC voltage as its tube voltage. Notably, the switching elements are driven to perform a chopping operation at a frequency higher than the inverter drive frequency. This design allows for a pattern signal that gradually increases the duty cycle of the chopping operation in synchronism with the timing of switching over the switching elements.

Another significant patent involves a method of operating a power supply system that includes a DC-to-AC inverter stage and a voltage step-up transformer. This system aims to achieve output voltage settlement with minimal delay and reduced bounce at the start-up of power supply to the load. It also addresses the issue of load voltage bounce caused by the leakage inductance and stray capacitance of a high tension step-up transformer.

Career Highlights

Hirofumi Hino has worked with prominent companies in the medical technology sector, including Hitachi Medical Corporation. His experience in these organizations has contributed to his expertise in developing innovative solutions for medical imaging.

Collaborations

Hino has collaborated with notable professionals in his field, including Kazuo Kaneko and Takanobu Hatakeyama. These collaborations have further enriched his work and contributed to advancements in X-ray technology.

Conclusion

Hirofumi Hino's contributions to the field of medical imaging through his innovative patents and collaborations highlight his role as a key inventor in this domain. His work continues to influence the development of advanced X-ray systems, enhancing medical diagnostics and patient care.