Company Filing History:
7 out of 3,781 
3 out of 42,496 
1 out of 2 Years Active: 2001-2007
Introduction
Masashi Maruyama is an accomplished inventor based in Komoro, Japan, known for his significant contributions to the field of semiconductor technology. With a total of 11 patents to his name, Maruyama has established himself as a key innovator in high-frequency power amplification devices and techniques.
Latest Patents
Among his latest patents, Maruyama has developed a semiconductor device, along with methods and apparatus for manufacturing it. One notable invention features a high-frequency power amplifying device with two amplifying lines. Each amplifying line consists of multiple amplifying stages connected in a cascade configuration, equipped with two source voltage terminals, enhancing efficiency and performance. Furthermore, he has innovated an air core coil with low D.C. resistance, utilizing a copper wire of approximately 0.1 mm in diameter, strategically placed between the amplification stages for optimal functionality.
Another key patent details a semiconductor integrated circuit designed specifically for high-frequency power amplifiers, along with an electronic component that plays a crucial role in a radio communication system. This electronic component performs output level detection for feedback control of the circuit's output power, utilizing an error amplifier that generates control signals based on detected discrepancies. The incorporation of a phase compensation circuit further enhances the reliability and accuracy of the amplification process.
Career Highlights
Throughout his career, Masashi Maruyama has made notable strides while working for prominent companies such as Renesas Technology Corporation and Hitachi, Ltd. His research and inventions have significantly influenced the advancement of semiconductor technologies and applications in electronics.
Collaborations
Maruyama's innovative journey has also been marked by collaborations with talented coworkers in the industry. Among them are Hitoshi Akamine and Satoshi Arai, who have shared expertise and insights, contributing to the successful development of groundbreaking technologies.
Conclusion
Masashi Maruyama's dedication to advancing semiconductor technology through his inventive spirit and substantial patent portfolio highlights his impact in the field. With an ongoing commitment to innovation, he continues to pave the way for future advancements in high-frequency power amplification and communication systems.