Location History:
- Tokyo, JP (2004)
- Tajimi, JP (2007 - 2009)
Company Filing History:
1 out of 1,160 
2 out of 832,880 Years Active: 2004-2009
Title: Koji Kawamoto: Innovator in Inverter Circuit Technology
Introduction
Koji Kawamoto is a notable inventor based in Tajimi, Japan. He has made significant contributions to the field of inverter circuit technology, particularly for discharge lamps. With a total of 3 patents, his work has advanced the efficiency and functionality of multi-lamp lighting systems.
Latest Patents
Kawamoto's latest patents include an innovative inverter circuit designed for discharge lamps used in multi-lamp lighting systems. This circuit controls the negative resistance characteristic of fluorescent lamps, eliminating excessively set reactance by utilizing a shunt transformer. The design features two coils connected to a secondary winding of a step-up transformer, which are magnetically coupled to form a shunt transformer. This configuration allows for balanced current flow through the discharge lamps, ensuring that each lamp is illuminated effectively. The reactance of the inductance related to the balancing operation exceeds the negative resistance of the discharge lamps, enhancing their performance.
Career Highlights
Throughout his career, Koji Kawamoto has worked with various companies, including Minebea Company, Limited. His experience in the industry has allowed him to refine his skills and contribute to significant advancements in lighting technology.
Collaborations
Kawamoto has collaborated with notable colleagues such as Masakazu Ushijima and Youichi Yamamoto. Their combined expertise has fostered innovation in the field of inverter circuits.
Conclusion
Koji Kawamoto's contributions to inverter circuit technology have made a lasting impact on the lighting industry. His innovative designs and collaborative efforts continue to influence advancements in multi-lamp lighting systems.