Fukuoka, Japan

Keiji Yoshida

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignees: Fukuoka Industry, Science and Technology Foundation, Kyushu University. Active years: 2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Keiji Yoshida. Retrieved from https://idiyas.com/inventor/keiji-yoshida-cvhde4cs

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

USPTO Granted Patents = 1 

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2012

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1 patent (USPTO):Explore Patents

Title: Keiji Yoshida: Innovator in Communication Technology

Introduction

Keiji Yoshida is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of communication technology, particularly through his innovative designs and patents. His work focuses on enhancing communication circuits and apparatuses, which are essential in modern telecommunications.

Latest Patents

Yoshida holds a patent for a communication circuit, communication apparatus, impedance matching circuit, and impedance matching circuit designing method. This invention features a communication circuit equipped with an antenna section, such as a nonresonant antenna, and a matching section that connects with the antenna section to adjust impedance. The matching section includes a transmission line, with its electric length and characteristic impedance determined based on the frequency or frequency band in which the antenna section and transmission line resonate. This design allows for the miniaturization of antennas and enables wideband capabilities by altering the characteristic impedance of the transmission line. He has 1 patent to his name.

Career Highlights

Throughout his career, Yoshida has worked with esteemed institutions such as Kyushu University and the Fukuoka Industry, Science and Technology Foundation. His experience in these organizations has allowed him to develop and refine his innovative ideas in communication technology.

Collaborations

Yoshida has collaborated with various professionals in his field, including Haruichi Kanaya. Their joint efforts have contributed to advancements in communication circuit design and technology.

Conclusion

Keiji Yoshida's contributions to communication technology through his innovative patents and collaborations highlight his role as a significant inventor in this field. His work continues to influence advancements in telecommunications and circuit design.

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]
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