Osaka, Japan

Kouji Hamaoka

This inventor holds 3 USPTO granted patents. Top assignee: Matsushita Refrigeration Company. Active years: 1999-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kouji Hamaoka. Retrieved from https://idiyas.com/inventor/kouji-hamaoka

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 7.0

ph-index = 3

Forward Citations = 53(Granted Patents)


Company Filing History:


Years Active: 1999-2000

Loading Chart...
3 patents (USPTO):Explore Patents

Title: **The Innovative Mind of Kouji Hamaoka**

Introduction

Kouji Hamaoka is a distinguished inventor based in Osaka, Japan. With a remarkable portfolio of three patents to his name, Hamaoka has made significant contributions to the field of refrigeration technology. His innovations focus on enhancing the efficiency and reliability of refrigeration systems, particularly through the use of advanced motor control techniques.

Latest Patents

Hamaoka's latest patents include innovations in refrigerating apparatus and a brushless motor design. His technology addresses common issues with DC motors in refrigeration compressors. Specifically, when a lock detector identifies a locked state during the starting phase, a torque increasing circuit is activated. This circuit selects a starting sequence pattern that provides a larger output torque, allowing for rapid restarting of the compressor without repeated failures. Additionally, the compressor, powered by a variable-speed DC motor, operates within a pressure shell approximately equal to that of the inhalation gas. An inverter is integrated to adjust the motor speed dynamically, while a rotational frequency setting circuit ensures the motor operates below the frequency of commercial power sources once the refrigerator's internal temperature stabilizes. This innovative approach significantly reduces power consumption.

Career Highlights

Kouji Hamaoka is affiliated with Matsushita Refrigeration Company, where he applies his expertise in refrigeration technology. His work has not only contributed to the company's advancements but has also aimed at improving energy efficiency in everyday appliances. Through his patents, Hamaoka has showcased his ability to solve complex engineering challenges, making refrigeration systems more dependable and eco-friendly.

Collaborations

Throughout his career, Hamaoka has collaborated with colleagues such as Keiji Ogawa and Koyo Shibuya. Their collective efforts contribute to the advancement of refrigeration technologies and foster an environment of innovation within Matsushita Refrigeration Company. The synergy among these professionals exemplifies the importance of teamwork in driving technological improvements.

Conclusion

Kouji Hamaoka continues to make strides in refrigeration technology with his innovative patents. His commitment to enhancing the performance and efficiency of refrigeration systems not only benefits consumers but also advances sustainable practices in the industry. As he collaborates with talented coworkers at Matsushita Refrigeration Company, Hamaoka remains a pivotal figure in the realm of modern inventions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…