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For the Inventor, By the Inventor

Mori-machi, Japan

Shigeru Muramatsu

This inventor holds 68 USPTO granted patents and 4 EPO patents, primarily in Keyboard Instruments (CPC class 8474). Top assignees: Yamaha Corporation, Nippon Gakki Seizo Kabushiki Kaisha, Mitsubishi Denki Kabushiki Kaisha. Active years: 1980-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeru Muramatsu. Retrieved from https://idiyas.com/inventor/shigeru-muramatsu

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

Calculating rank
USPTO Granted Patents = 68

% Patents Active = 70.6


Average Co-Inventor Count = 1.7

ph-index = 15

Forward Citations = 649(Granted Patents)

Forward Citations (Not Self Cited) = 607(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Mori, JP (1984)
  • Shyuchi-gun, JP (2005)
  • Shizuoka, JP (1985 - 2008)
  • Shizuoka-ken, JP (1997 - 2010)
  • Shuchi-gun, JP (2008 - 2012)
  • Hamamatsu, JP (1980 - 2014)
  • Mori-machi, JP (2004 - 2014)

Company Filing History:

goldMedal63 out of 5,505 
 
Yamaha Corporation
 patents
silverMedal3 out of 841 
 
Nippon Gakki Seizo Kabushiki Kaisha
 patents
bronzeMedal2 out of 21,351 
 
Mitsubishi Denki Kabushiki Kaisha
 patents

Years Active: 1980-2014

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Areas of Expertise:
Keyboard Apparatus
Automatic Player
Optical Sensor
Pedal Device
Musical Instrument
Performance Input
Transducer System
Key Structure
Data Acquisition
Acoustic Keyboard
Optical Position
Sensor Unit
68 patents (USPTO):Explore Patents
1. 8889975 - Keyboard apparatus (2014-11-18),
2. 8779256 - Keyboard apparatus (2014-07-15),
3. 8648236 - Keyboard apparatus (2014-02-11),
4. 8558095 - Keyboard apparatus (2013-10-15),
5. 8541672 - Pedal apparatus of electronic musical instrument (2013-09-24),
6. 8389846 - Inner force sense controlling apparatus, method for controlling inner force sense and musical instrument using the same (2013-03-05),
7. 8389833 - Upright piano type action (2013-03-05),
8. 8294009 - Upright piano type action (2012-10-23),
9. 8222509 - Pedal device of electronic keyboard musical instrument (2012-07-17),
10. 8143505 - Pedal apparatus of electronic musical instrument (2012-03-27),
11. 7956261 - Pedal apparatus of electronic musical instrument (2011-06-07),
12. 7893334 - Pedal apparatus of electronic musical instrument (2011-02-22),
13. 7786368 - Actuator unit for performance operator, keyboard musical instrument and actuator unit assembly (2010-08-31),
14. 7759570 - Material for keys of keyboard (2010-07-20),
15. 7521626 - Automatic player musical instrument, testing system incorporated therein and method for specifying half pedal point (2009-04-21),

Title: The Innovative Journey of Shigeru Muramatsu

Introduction: Shigeru Muramatsu, a pioneering inventor hailing from Mori-machi, Japan, has made significant contributions to the world of innovations with his groundbreaking ideas and inventions.

Latest Patents: Shigeru Muramatsu holds several patents in various fields, including technology, engineering, and healthcare, showcasing his diverse range of expertise and creativity.

Career Highlights: Throughout his illustrious career, Shigeru Muramatsu has been recognized for his innovative spirit and problem-solving abilities. His inventions have not only improved existing technologies but have also opened new avenues for future developments.

Collaborations: Shigeru Muramatsu has collaborated with leading research institutions, universities, and companies to bring his inventions to life. His partnerships have been instrumental in turning his ideas into tangible products that have made a positive impact on society.

Conclusion: In conclusion, Shigeru Muramatsu stands as a testament to the power of innovation and perseverance. His dedication to pushing the boundaries of what is possible has cemented his legacy as a visionary inventor in the world of patents and inventions.

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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