Hamamatsu, Japan

Yukimasa Okumura

This inventor holds 6 USPTO granted patents and 3 published patent applications and 1 EPO patent. Top assignees: Yamaha Corporation, Nippon Gakki Seizo Kabushiki Kaisha. Active years: 1988-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yukimasa Okumura. Retrieved from https://idiyas.com/inventor/yukimasa-okumura

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

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 100.0

 

Average Co-Inventor Count = 1.2

ph-index = 4

Forward Citations = 41(Granted Patents)


Company Filing History:


Years Active: 1988-2019

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6 patents (USPTO):Explore Patents

Title: Innovations by Yukimasa Okumura

Introduction

Yukimasa Okumura is a notable inventor based in Hamamatsu, Japan. He has made significant contributions to the field of musical instruments, holding a total of 6 patents. His work focuses on enhancing the quality and performance of musical components through innovative designs and materials.

Latest Patents

Okumura's latest patents include a laminated plyboard for musical instruments and a drumhead designed for percussion instruments. The laminated plyboard is engineered to reduce the loss of vibration energy due to internal friction while maintaining high rigidity at a low cost. This plyboard consists of a first layer portion and a second layer portion, both including specific layers, with an impregnated layer sandwiched in between. The impregnated layer has a higher rigidity coefficient than the layers that make up the first and second portions. The drumhead, on the other hand, is composed of multiple plies of synthetic resin films that are laminated together. It features an air evacuation hole to ensure that air trapped between the films can be efficiently evacuated, thereby improving sound quality when the drum is played.

Career Highlights

Throughout his career, Okumura has worked with prominent companies in the musical instrument industry, including Yamaha Corporation and Nippon Gakki Seizo Kabushiki Kaisha. His experience in these organizations has allowed him to refine his skills and contribute to the development of innovative musical products.

Collaborations

Okumura has collaborated with talented individuals such as Junji Fujii and Hiroaki Ohmuro. These partnerships have fostered a creative environment that has led to the development of groundbreaking inventions in the field of music.

Conclusion

Yukimasa Okumura's contributions to the world of musical instruments through his innovative patents and collaborations highlight his importance as an inventor. His work continues to influence the quality and performance of musical products, making a lasting impact on the industry.

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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