Kawasaki, Japan

Norio Ishiguro

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Columbia Kabushiki Kaisha. Active years: 1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Norio Ishiguro. Retrieved from https://idiyas.com/inventor/norio-ishiguro

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1984

Loading Chart...
1 patent (USPTO):Explore Patents

Title: Norio Ishiguro: Innovator in Distortion Elimination Technology

Introduction

Norio Ishiguro is a notable inventor based in Kawasaki, Japan. He has made significant contributions to the field of electronics, particularly in the development of circuits that enhance audio quality. His innovative approach has led to the creation of a unique distortion eliminating circuit.

Latest Patents

Ishiguro holds a patent for a distortion eliminating circuit. This circuit includes an amplifier and a difference detector that identifies the difference between two signals. The input signal to the amplifier and the output signal are adjusted in level and applied to the difference detector. The amplifier is designed as a push-pull amplifier, utilizing transistors of opposite conductivity types. A series connection of resistors is connected in parallel to the emitter resistors of the push-pull amplifier. The output from the difference detector is then added to the amplifier's output, effectively eliminating distortion.

Career Highlights

Ishiguro is associated with Nippon Columbia Kabushiki Kaisha, a company known for its advancements in audio technology. His work has been instrumental in improving sound quality in various electronic devices. With a focus on innovation, he continues to contribute to the field through his research and development efforts.

Collaborations

Some of Ishiguro's notable coworkers include Ryuichi Fukuda and Masami Fujiwara. Their collaborative efforts have further enhanced the development of technologies in the audio industry.

Conclusion

Norio Ishiguro's contributions to distortion elimination technology have made a significant impact in the field of electronics. His innovative circuit design continues to influence audio quality improvements in various applications.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…