Machida, Japan

Kazunari Kawahata

This inventor holds 68 USPTO granted patents and 2 published patent applications, plus 6 CIPO patents and 3 EPO patents, primarily in Antenna Technology (CPC class H01Q). Top assignees: Murata Manufacturing Co., Ltd., Murata Mfg. Co., Ltd.. Active years: 1990-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazunari Kawahata. Retrieved from https://idiyas.com/inventor/kazunari-kawahata

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

USPTO Granted Patents = 68 

% Patents Active = 83.8


 

Average Co-Inventor Count = 2.2

ph-index = 24

Forward Citations = 1,645(Granted Patents)

Forward Citations (Not Self Cited) = 1,610(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Machida, JP (2001 - 2009)
  • Yokohama, JP (2011 - 2013)
  • Kanagawa-ken, JP (2014)
  • Kyoto, JP (1990 - 2024)
  • Nagaokakyo, JP (2024)

Company Filing History:


Years Active: 1990-2024

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Areas of Expertise:
Antenna Device
Wireless Communication
Surface-Mount Antenna
Luneburg Lens
Circularly Polarized Antenna
MEMS Module
Coil Antenna Structure
Communication Apparatus
Multi-Resonance Antenna
RF Circuit
Patch Array Antenna
Variable Reactance Circuit
68 patents (USPTO):Explore Patents

Title: Kazunari Kawahata: Innovator in Communication and Object Detection Technologies

Introduction

Kazunari Kawahata, based in Machida, Japan, is a notable inventor with a prolific portfolio comprising 68 patents. His innovative contributions primarily focus on communication devices and object shape detection methods. Kawahata's work significantly influences modern technology and enhances the efficiency of various systems in the engineering domain.

Latest Patents

Kawahata's recent patents include groundbreaking technologies. One of his notable inventions is a communication device that integrates a first antenna, a second antenna, and a waveguide structure within a single cabinet. This device operates at dual frequencies, where the second antenna operates at a frequency higher than that of the first. The second antenna is designed as an array antenna containing multiple radiating elements, enhancing signal transmission and reception capabilities.

Another significant patent revolves around an object shape detection apparatus. This technology enables detection of both raised and depressed portions on an object's surface. It utilizes a reflection intensity comparator to analyze the intensity of horizontally and vertically polarized wave components of a reflected wave. The object shape determiner accurately identifies the shapes and positions of these features, marking a significant advancement in object detection technologies used in various applications, including automotive and robotics.

Career Highlights

Throughout his career, Kazunari Kawahata has been associated with prominent companies such as Murata Manufacturing Co., Ltd. and Murata Mfg. Co., Ltd. His tenure at these organizations has allowed him to collaborate with brilliant minds and further his inventive pursuits. His contributions to these companies have been instrumental in developing cutting-edge technologies that align with industry demands.

Collaborations

Kawahata has worked alongside notable colleagues, including Nobuhito Tsubaki and Shoji Nagumo. Their collaborations have resulted in innovative projects and research that have pushed the boundaries of technology in their respective fields. Together, they have tackled complex challenges and advanced solutions that benefit the broader technology landscape.

Conclusion

Kazunari Kawahata continues to be a driving force in the realm of invention, with a robust portfolio of patents reflecting his innovative spirit. His latest work on communication devices and object shape detection showcases his dedication to developing solutions that address modern technological needs. As he continues to push the envelope of innovation, Kawahata's contributions will undoubtedly leave a lasting impact on the world of technology.

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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