Hamamatsu, Japan

Tsutomu Sasaki

This inventor holds 27 USPTO granted patents and 3 EPO patents, primarily in Musical Instrument Technology. Top assignee: Yamaha Corporation. Active years: 1992-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tsutomu Sasaki. Retrieved from https://idiyas.com/inventor/tsutomu-sasaki-d0y665j3

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

Calculating rank

% Patents Active = 81.5


Average Co-Inventor Count = 1.9

ph-index = 10

Forward Citations = 297(Granted Patents)


Location History:

  • Shizuoka, JP (1995 - 2004)
  • Hamamatsu, JP (1992 - 2013)
  • Shizuoka-ken, JP (1998 - 2013)

Company Filing History:


Years Active: 1992-2013

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Areas of Expertise:
Musical Instrument
Electronic System
Optical Sensor
Position Transducer
Keyboard Instrument
Velocity Estimator
Data Converter
Transducer
Hammer Sensor
Automatic Player Piano
Lesson Assistant System
Light Emitting Unit
27 patents (USPTO):Explore Patents

Title: Inventor Tsutomu Sasaki: Innovations in Musical Instruments

Introduction

Tsutomu Sasaki, based in Hamamatsu, Japan, is a renowned inventor recognized for his contributions to the field of musical instruments. With an impressive portfolio of 27 patents, his work focuses on enhancing the interaction between musicians and their instruments, particularly in optimizing pedal performance.

Latest Patents

Sasaki's latest patents include a groundbreaking invention titled "Musical instrument having controller exactly discriminating half-pedal and controlling system used therein." This innovative mute piano responds sensitively to key and pedal movements, producing music data codes that convey pitch and pedal effects according to MIDI protocols. The design features a specialized damper pedal stroke divided into distinct regions — rest, half-pedal, and damper-free — optimizing the relationship between pedal position and musical output through a calibration mode.

Another notable patent is the "Electronic supporting system for musicians and musical instrument equipped with the same." This automatic player piano incorporates an electronic supporting system that aids musicians in mastering the nuances of pedal usage. By monitoring the damper pedal, the system assists players in learning optimal pedal strokes, adjusting the resistance they feel to facilitate a deeper understanding of pedal dynamics as they practice.

Career Highlights

Tsutomu Sasaki's career is marked by his association with Yamaha Corporation, a leading name in the musical instrument industry. His innovative work in developing advanced systems for pianos has significantly contributed to the evolution of electronic piano technology, benefiting both novice and experienced musicians.

Collaborations

Throughout his career, Sasaki has collaborated with notable colleagues, including Yuji Fujiwara and Tomoyuki Ura. These partnerships have further fueled creativity and innovation, leading to the development of effective systems that enhance the musical experience.

Conclusion

With a diverse range of patents and a dedication to improving musical performance, Tsutomu Sasaki stands as a pivotal figure in the world of musical invention. His work continues to influence the way musicians interact with their instruments, ensuring that the artistry of music remains vibrant and accessible.

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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