Hamamatsu, Japan

Kojiro Akagawa

This inventor holds 1 USPTO granted patent. Top assignee: Yamaha Corporation. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kojiro Akagawa. Retrieved from https://idiyas.com/inventor/kojiro-akagawa

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: Innovations in Musical Instrument Design: The Journey of Kojiro Akagawa

Introduction

Kojiro Akagawa, a renowned inventor based in Hamamatsu, Japan, has made significant contributions to the field of musical instruments. His patented invention focuses on enhancing the performance of flutes, ensuring they produce brilliant sounds in the mid to high notes.

Latest Patents

Akagawa holds one patent, which pertains to a metallic material specifically designed for flute production. The patent involves an Ag alloy type material, which incorporates specified amounts of elements such as Ni, Fe, Co, Cr, Mn, Ti, Zi, and Si. These additions are critical in suppressing the softening and crystal grain size coarsening that occurs during the annealing process in flute manufacturing. This innovative approach results in flutes that deliver exceptional sound quality, particularly in higher registers.

Career Highlights

Akagawa is associated with Yamaha Corporation, a leading name in the musical instrument industry. His work at Yamaha has allowed him to explore new materials and techniques, contributing to the manufacturing of high-quality musical instruments. His dedication and innovative mindset have positioned him as a valuable asset in the competitive world of music technology.

Collaborations

Throughout his career, Akagawa has collaborated with talented individuals such as Osamu Watanabe and Takashi Nara. Together, they have shared ideas and combined their expertise to further enhance the quality and innovation of Yamaha’s musical products. These collaborations highlight the importance of teamwork in achieving breakthroughs in instrument design.

Conclusion

Kojiro Akagawa’s work represents a significant advancement in the field of musical instrument innovation. His patent for a specialized metallic material not only improves the quality of flutes but also showcases the use of scientific principles in the arts. With ongoing contributions to music technology, Akagawa continues to inspire future inventors and musicians alike.

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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