Location History:
- Saitama, JP (1989)
- Kohnosu, JP (1990)
Company Filing History:
Years Active: 1989-1990
Title: Minoru Yasukawa: Innovator in Metal Vapor Discharge Lamps
Introduction
Minoru Yasukawa is a notable inventor based in Kohnosu, Japan. He has made significant contributions to the field of lighting technology, particularly in the development of metal vapor discharge lamps. With a total of 3 patents to his name, Yasukawa's innovations have enhanced the efficiency and reliability of lighting systems.
Latest Patents
Yasukawa's latest patents include a groundbreaking design for a metal vapor discharge lamp. This lamp features a translucent outer bulb that houses an arc tube and a starter connected in parallel to the arc tube. The starter includes a nonlinear capacitor, with at least one lead wire connected to a support line designed to fuse under large currents. This innovative construction allows for unobstructed oscillation of the nonlinear capacitor, generating high-voltage pulses while reducing noise levels. Additionally, the design prevents ballast burning by breaking the electric circuit when excessive current flows.
Another significant patent involves a metal vapor discharge lamp that incorporates a starter formed by a coiled nonfusible metal wire. This wire is wound along the outer wall of the luminous tube and is connected in series with a nonlinear capacitor. This design ensures stable lighting with a smaller ballast and prevents large currents from passing through the starter, even in the event of a leak in the luminous tube. If the vacuum outer bulb is compromised, the circuit can be opened by melting the nonfusible metal wire, enhancing safety.
Career Highlights
Yasukawa is currently associated with Iwasaki Electric Co., Ltd., a company renowned for its advancements in lighting technology. His work has significantly contributed to the company's reputation for innovation and quality in the industry.
Collaborations
Throughout his career, Yasukawa has collaborated with esteemed colleagues, including Takenobu Iida and Jojiro Shiina. These partnerships have fostered a creative environment that has led to the development of cutting-edge lighting solutions.
Conclusion
Minoru Yasukawa's contributions to the field of metal vapor discharge lamps exemplify his innovative spirit and dedication to advancing lighting technology. His patents reflect a commitment to improving efficiency and safety in lighting systems, making a lasting impact on the industry.