Osaka, Japan

Joji Hayashi

This inventor holds 9 USPTO granted patents. Top assignees: Panasonic Corporation, Matsushita Electric Industrial Co., Ltd.. Active years: 2000-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Joji Hayashi. Retrieved from https://idiyas.com/inventor/joji-hayashi

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


% Patents Active = 66.7

Average Co-Inventor Count = 1.8

ph-index = 6

Forward Citations = 209(Granted Patents)


Location History:

  • Hirakata, JP (2007 - 2010)
  • Osaka, JP (2000 - 2011)

Company Filing History:


Years Active: 2000-2011

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9 patents (USPTO):Explore Patents

Title: Joji Hayashi: Innovator in High-Frequency Amplification

Introduction

Joji Hayashi is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of high-frequency amplification, holding a total of nine patents. His work focuses on reducing production costs while enhancing the performance of transmission and reception systems.

Latest Patents

One of his latest patents is a high-frequency amplifier designed to amplify transmission and reception signals. This innovation reduces the integrated circuit area, thereby lowering production costs. The high-frequency amplifier includes a reception signal amplifying part, a transmission signal amplifying part, and a spiral inductor. The output of both amplifying parts is connected to a common output terminal, utilizing the spiral inductor as a load for both parts. This design effectively minimizes the integrated circuit area and production costs.

Another notable patent is a low-noise amplifier circuit used in a broadband multichannel reception system. In this design, the capacitance of a variable capacitor is controlled by a resonance frequency control circuit. This ensures that the resonance frequency of the load unit matches the desired RF signal frequency. As a result, high gain and broadband capabilities are achieved without increasing power consumption, leading to a reception system that is both energy-efficient and highly sensitive across all channels.

Career Highlights

Joji Hayashi has worked with renowned companies such as Panasonic Corporation and Matsushita Electric Industrial Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in high-frequency technology.

Collaborations

Throughout his career, Hayashi has collaborated with notable coworkers, including Katsumasa Hijikata and Hiroshi Shimomura. These partnerships have contributed to the advancement of his inventions and the successful implementation of his patents.

Conclusion

Joji Hayashi is a distinguished inventor whose work in high-frequency amplification has led to significant advancements in technology. His innovative patents reflect his commitment to enhancing performance while reducing costs. His contributions continue to influence the field and inspire future innovations.

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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