Location History:
- Warabi, JP (1983 - 2000)
- Saitama, JP (2001)
Company Filing History:
3 out of 168 
2 out of 6 
1 out of 2 Years Active: 1983-2001
Title: Isao Sugawara: Innovator in AC Voltage Regulation and Conversion
Introduction
Isao Sugawara is a notable inventor based in Warabi, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of AC voltage regulators and converters. With a total of 5 patents to his name, Sugawara's work showcases his innovative approach to solving complex electrical challenges.
Latest Patents
One of Sugawara's latest inventions is an AC voltage regulator. This device is designed to respond quickly to input voltage fluctuations while being compact and lightweight. It features a high-frequency transformer and multiple bi-directional semiconductor switch circuits. The regulator modulates the input AC voltage, transforms it at high frequency, and demodulates it to produce a raised AC voltage. This voltage is then pulse width modulated to ensure continuous regulation, demonstrating Sugawara's expertise in creating efficient electrical solutions.
Another significant invention is the AC-AC/DC converter. This device further exemplifies his innovative capabilities in electrical conversion technologies.
Career Highlights
Throughout his career, Isao Sugawara has worked with prominent companies, including Chiyoda Corporation and I-hits Laboratory. His experience in these organizations has contributed to his development as a leading inventor in his field.
Collaborations
Sugawara has collaborated with various professionals, including his coworker Yasunobu Suzuki. These partnerships have likely enhanced his innovative processes and contributed to his successful inventions.
Conclusion
Isao Sugawara's contributions to electrical engineering through his patents and inventions highlight his role as a significant innovator. His work continues to influence the field, showcasing the importance of innovation in technology.