Ehime, Japan

Shunji Takeda

This inventor holds 1 USPTO granted patent. Top assignees: Pioneer Corporation, Tohoku Pioneer Corporation. Active years: 2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shunji Takeda. Retrieved from https://idiyas.com/inventor/shunji-takeda

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

Calculating rank

Average Co-Inventor Count = 3.0

ph-index = 1


Company Filing History:


Years Active: 2009

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1 patent (USPTO):Explore Patents

Title: Shunji Takeda: Innovator in Speaker Diaphragm Technology

Introduction

Shunji Takeda is a notable inventor based in Ehime, Japan. He has made significant contributions to the field of audio technology, particularly in the development of speaker diaphragms. His innovative approach has led to advancements that enhance sound quality and durability in humid environments.

Latest Patents

One of Takeda's key patents is for a diaphragm for a speaker and the manufacturing method thereof. This invention involves creating a diaphragm using acrylic foam, which incorporates maleic anhydride and methacrylic amide. This unique composition reduces the coefficient of saturated water absorption, thereby preventing the decrease of strength and deterioration of sound quality in humid conditions. Takeda's patent is a testament to his commitment to improving audio performance.

Career Highlights

Throughout his career, Shunji Takeda has worked with prominent companies in the audio industry, including Pioneer Corporation and Tohoku Pioneer Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking technologies in speaker design.

Collaborations

Takeda has collaborated with talented individuals in his field, including Satoshi Hachiya and Koji Matsumoto. These partnerships have fostered innovation and have been instrumental in the development of new audio technologies.

Conclusion

Shunji Takeda's contributions to speaker diaphragm technology exemplify his innovative spirit and dedication to enhancing audio quality. His work continues to influence the industry, making him a significant figure in the realm of audio engineering.

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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