This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignees: Circuit Design, Inc., Hoshino Gakki Co., Ltd., Nisshin Onpa Co., Ltd.. Active years: 1995-2017.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
6 out of 7 
1 out of 153 
1 out of 1 Years Active: 1995-2017
Title: The Innovative Contributions of Yukinaga Koike from Nagano, Japan
Introduction
Yukinaga Koike, an inventive mind based in Nagano, Japan, has made significant strides in the field of audio transmission technology. With a commendable portfolio comprising six patents, his innovations demonstrate a keen understanding of modern communication needs and technological advancements.
Latest Patents
Among his latest inventions, Koike has developed an audio FM transmitter that excels in providing high-precision frequency control while maintaining a compact size and low cost. This device uses a fractional-N type PLL circuit to enable FM modulation effectively. Additionally, he has created a compact and lightweight wireless microphone and transmitter. This innovative system features a low-frequency amplifier that enhances voice signals, a surface acoustic wave oscillator for high-frequency oscillation, and a modulator that combines these signals into a high-frequency modulated signal. To further improve sound quality, the transmitter includes a compander circuit and a pre-emphasis circuit, ensuring a superior signal-to-noise ratio and increased dynamic range.
Career Highlights
Koike has built a remarkable career with his contributions to renowned companies such as Circuit Design, Inc. and Nisshin Onpa Co., Ltd. His work in these organizations reflects his dedication to advancing audio technologies while collaborating with talented teams to push the boundaries of innovation.
Collaborations
Throughout his career, Koike has had the opportunity to work alongside Yuuichi Miyashita, a fellow innovator. Their collaboration has undoubtedly played a role in refining their technological advancements and driving forward-thinking solutions in their respective projects.
Conclusion
Yukinaga Koike represents a remarkable presence in the world of audio innovation, combining technical expertise with a vision for future advancements. With his ongoing work and a solid foundation of patents, his contributions will likely continue to shape the future of wireless audio technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile