Location History:
- Machida, JP (2008 - 2015)
- Tokyo, JP (2004 - 2024)
Company Filing History:
5 out of 42,485 
5 out of 15,844 
1 out of 493 
Years Active: 2004-2025
Title: The Innovative Contributions of Koji Fukui
Introduction
Koji Fukui is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of air-conditioning technology. With a total of 13 patents to his name, Fukui has made remarkable advancements that enhance the efficiency and functionality of air-conditioning systems.
Latest Patents
Fukui's latest patents include an air-conditioning apparatus with a defrost bypass circuit. This innovative design features a refrigerant circuit that includes both a main circuit and a bypass circuit. The bypass circuit connects to multiple parallel outdoor heat exchangers through a defrosting refrigerant pressure-reducing device, a defrosting flow passage switching device, and a backflow prevention device. The controller in this system intelligently switches the flow passage to select one of the outdoor heat exchangers as a defrosting target, ensuring efficient operation. Another notable patent is an air-conditioning apparatus that incorporates a simultaneous heating and defrosting operation mode. This design allows the controller to manage the compressor, pressure reducing device, and defrosting refrigerant pressure-reducing device to achieve optimal performance based on the air-conditioning load state and operation state.
Career Highlights
Throughout his career, Koji Fukui has worked with leading companies in the industry, including Hitachi, Ltd. and Mitsubishi Electric Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to the advancement of air-conditioning technology.
Collaborations
Fukui has collaborated with notable colleagues such as Susumu Sakamoto and Kazutaka Suefuji. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the field.
Conclusion
Koji Fukui's contributions to air-conditioning technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the efficiency and effectiveness of air-conditioning systems worldwide.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.