Katsumi Hirooka

Title: Innovations of Katsumi Hirooka

Introduction

Katsumi Hirooka is a notable inventor based in Nishikasugai-gun, Japan. He has made significant contributions to the field of compressor technology, holding a total of 8 patents. His work focuses on enhancing the efficiency and reliability of scroll-type compressors.

Latest Patents

Hirooka's latest patents include a scroll-type compressor designed to supply sufficient lubricating oil without causing seizure of the bearing for an orbiting scroll. This innovative design features an annular boss that extends downward from the orbiting scroll, allowing an eccentric pin of a rotating shaft to fit into the boss via a bearing and an eccentric bush. A gap is provided between the eccentric pin and the eccentric bush, along with an oil supply path that ensures the lubricating oil flows effectively to the bearing. Another significant patent is for a closed-type scroll compressor, which includes a closed housing formed with low-pressure and high-pressure chambers, a scroll-type compression mechanism, and a motor for driving the mechanism. This design incorporates a connection oil drainage passage that enhances the efficiency of oil drainage.

Career Highlights

Throughout his career, Katsumi Hirooka has worked with prominent companies such as Mitsubishi Jukogyo Kabushiki Kaisha and Mitsubishi Heavy Industries Limited. His experience in these organizations has contributed to his expertise in compressor technology and innovation.

Collaborations

Hirooka has collaborated with notable colleagues, including Hiroyuki Kobayashi and Susumu Matsuda. Their teamwork has likely fostered advancements in the technologies they have developed together.

Conclusion

Katsumi Hirooka's contributions to compressor technology through his patents and collaborations highlight his role as an influential inventor in the field. His innovative designs continue to impact the efficiency and functionality of scroll-type compressors.