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For the Inventor, By the Inventor

Hamamatsu, Japan

Kei Tanaka

This inventor holds 5 USPTO granted patents. Top assignee: Yamaha Corporation. Active years: 1997-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kei Tanaka. Retrieved from https://idiyas.com/inventor/kei-tanaka-5yrxgtuo

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 2.5

ph-index = 3

Forward Citations = 71(Granted Patents)


Location History:

  • Hamamatsu, JP (1997 - 2003)
  • Suginami-ku, JP (2007)

Company Filing History:

goldMedal5 out of 5,509 
 
Yamaha Corporation
 patents

Years Active: 1997-2007

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5 patents (USPTO):Explore Patents
1. RE39811 - Musical information recording and reproducing technique for use with a recording medium having a UTOC area (2007-09-03),
2. 6608809 - Seek operation on different recording density regions based on the reflection of a boundary area (2003-08-19),
3. 5793739 - Disk recording and sound reproducing device using pitch change and (1998-08-11),
4. 5784349 - Musical information recording and reproducing technique for use with a (1998-07-21),
5. 5602811 - Musical information recording and reproducing technique for use with a (1997-02-11),

Title: Kei Tanaka: Innovator in Musical Information Technology

Introduction

Kei Tanaka is a prominent inventor based in Hamamatsu, Japan. He has made significant contributions to the field of musical information recording and reproduction. With a total of 5 patents to his name, Tanaka's work has advanced the technology used in music production and playback.

Latest Patents

One of Tanaka's latest patents involves a musical information recording and reproducing technique designed for use with a recording medium that has a User's Table of Contents (UTOC) area. This innovative method generates a rhythm that corresponds to a designated tempo and meter of a music piece to be recorded. The performance of a musical instrument is initiated at specific timing according to the generated rhythm, and the resulting musical information is recorded onto a Mini Disk (MD). The start address of the music piece is retrieved and recorded onto the UTOC area, allowing for quick access to any desired measure during playback. Additionally, his patent addresses seek operations on optical disks with varying recording densities, enhancing the speed and efficiency of data retrieval.

Career Highlights

Tanaka is currently employed at Yamaha Corporation, a leading company in the music and audio equipment industry. His work at Yamaha has allowed him to explore and develop innovative technologies that enhance musical experiences for users worldwide.

Collaborations

Throughout his career, Tanaka has collaborated with notable colleagues, including Mikio Ogusu and Kazunobu Fujiwara. These partnerships have contributed to the development of advanced technologies in the field of music recording and reproduction.

Conclusion

Kei Tanaka's contributions to musical information technology have significantly impacted the industry. His innovative patents and work at Yamaha Corporation demonstrate his commitment to enhancing the way music is recorded and experienced.

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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