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For the Inventor, By the Inventor

Hamamatsu, Japan

Takeshi Sakai

This inventor holds 7 USPTO granted patents and 2 EPO patents. Top assignee: Yamaha Corporation. Active years: 1995-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Sakai. Retrieved from https://idiyas.com/inventor/takeshi-sakai-yrmzufty

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

USPTO Granted Patents = 7

% Patents Active = 100.0


Average Co-Inventor Count = 2.4

ph-index = 3

Forward Citations = 21(Granted Patents)


Location History:

  • Shizuoka-ken, JP (2010)
  • Hamamatsu, JP (1995 - 2018)

Company Filing History:

goldMedal7 out of 5,501 
 
Yamaha Corporation
 patents

Years Active: 1995-2018

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7 patents (USPTO):Explore Patents
1. 9858339 - Information providing system, identification information resolution server and mobile terminal device (2018-01-02),
2. 7795524 - Musical performance processing apparatus and storage medium therefor (2010-09-14),
3. 6526840 - Method for measuring sound absorption power of a theater chair with a human being seated thereon and a dummy sound absorber (2003-03-04),
4. 6463817 - Dummy sound absorber representing a seated human for measuring sound absorption power of a theater chair (2002-10-15),
5. 6105443 - Dummy sound absorber representing a seated human for measuring sound (2000-08-22),
6. 5700052 - Chair for an acoustically designed building (1997-12-23),
7. 5465469 - Method for measuring sound absorption power of a theater chair with a (1995-11-14),

Title: The Innovative Contributions of Takeshi Sakai

Introduction

Takeshi Sakai is a prominent inventor based in Hamamatsu, Japan, known for his significant contributions to technology and music education. With a total of seven patents to his name, Sakai has developed innovative systems that enhance the way information is provided and processed in various applications.

Latest Patents

One of Sakai's latest patents is an information providing system that includes a sound emission device. This device emits identification information modulated into a sound signal. The system also features an identification information resolution server that stores a mapping table with identification information, valid time information, and address information of content. A mobile terminal device is used to transmit the demodulated identification information to the server, allowing users to access content based on the obtained address information. Another notable patent is a musical performance processing apparatus designed to assist students in their practice. This apparatus includes a main unit that stores music data with performance information for both right and left hand parts. It features a performance terminal with a keyboard divided into two key ranges, enabling better interaction and learning for students.

Career Highlights

Sakai is currently employed at Yamaha Corporation, a leading company in the music and audio industry. His work at Yamaha has allowed him to merge his passion for technology with music, resulting in innovative products that benefit musicians and learners alike.

Collaborations

Throughout his career, Sakai has collaborated with notable colleagues, including Kawakami Fukushi and Ryokichi Yamazaki. These collaborations have fostered a creative environment that encourages the development of groundbreaking technologies.

Conclusion

Takeshi Sakai's contributions to technology and music education through his patents and work at Yamaha Corporation highlight his innovative spirit and dedication to enhancing user experiences. His inventions continue to influence the fields of information processing and musical performance.

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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