Tokyo, Japan

Hiroshi Hamada

This inventor holds 64 USPTO granted patents and 7 published patent applications, plus 1 CIPO patent and 3 EPO patents, primarily in High-Frequency Antennas (CPC class H01L). Top assignees: Nippon Telegraph and Telephone Corporation, Taiyo Yuden Co., Ltd., Oclaro Japan, Inc.. Active years: 1988-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Hamada. Retrieved from https://idiyas.com/inventor/hiroshi-hamada-kavab47g

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

USPTO Granted Patents = 64 

% Patents Active = 95.3


 

Average Co-Inventor Count = 2.9

ph-index = 11

Forward Citations = 590(Granted Patents)

Forward Citations (Not Self Cited) = 576(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Hinode, JP (1991)
  • Kawasaki, JP (2000)
  • Machida, JP (2001)
  • Kanagawa-ken, JP (1999 - 2002)
  • Kanagawa, JP (1997 - 2023)
  • Takasaki, JP (2017 - 2023)
  • Tokyo, JP (1988 - 2024)
  • Yokohama, JP (2000 - 2024)

Company Filing History:


Years Active: 1988-2025

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Areas of Expertise:
High-Frequency Antenna
Dielectric Constant
Variable Gain Amplifier
Semiconductor Light-Receiving Element
Electroacoustic Transducer
Vibration Generating Device
Multilayer Piezoelectric Element
Signal Generator
Optical Module
Photoelectric Conversion Element
Analog/Digital Converter
Mixer Circuit
64 patents (USPTO):Explore Patents

Title: Hiroshi Hamada: A Pioneer in Integrated Antenna Technology

Introduction

Hiroshi Hamada is a distinguished inventor based in Tokyo, Japan, who has made significant contributions to the field of integrated antenna technology. With an impressive portfolio of 63 patents, he has solidified his reputation as a leading innovator in telecommunications.

Latest Patents

Among his latest patents is a unique circuit integrated antenna, which features a patch conductor radiating an electromagnetic field, a feed line supplying the patch conductor, and two slits that enhance its function. This design allows for the formation of electric capacitance between the patch conductor and a surrounding ring conductor, enabling effective impedance matching through size adjustments of the ring and the gap. Another notable patent details the arrangement of stub conductors that encircle the patch conductor, separated by a gap, further optimizing antenna performance.

Career Highlights

Hiroshi began his career at Nippon Telegraph and Telephone Corporation, where he honed his skills in telecommunications. He later contributed to advancements at Taiyo Yuden Co., Ltd., working on various projects that pushed the boundaries of antenna technology. His extensive experience across these leading companies has played a crucial role in his innovative journey.

Collaborations

During his career, Hiroshi has collaborated with several notable individuals, including Hideyuki Nosaka and Yukihiro Matsui. These partnerships have contributed to the successful development of his groundbreaking patents and have fostered innovations that stand out in the industry.

Conclusion

Hiroshi Hamada's work continues to influence the landscape of integrated antenna technology. His extensive patent portfolio and collaborative efforts underscore his commitment to advancing telecommunications, making him a significant figure in the world of innovation.

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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