Tokyo, Japan

Kiyomi Yatsuhashi

This inventor holds 4 USPTO granted patents. Top assignee: Pioneer Electronic Corporation. Active years: 1982-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyomi Yatsuhashi. Retrieved from https://idiyas.com/inventor/kiyomi-yatsuhashi

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 7.4

ph-index = 3

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 1982-1992

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4 patents (USPTO):Explore Patents

Title: **Kiyomi Yatsuhashi: Pioneering Innovations in MIDI Technology**

Introduction

Kiyomi Yatsuhashi is a prominent inventor based in Tokyo, Japan, known for her groundbreaking contributions to the field of MIDI technology. With a total of four patents to her name, she has made significant strides in developing devices that enhance electronic music performance and sound production.

Latest Patents

Yatsuhashi's latest patents showcase her expertise in MIDI apparatus and amplifier circuits. Her first patent, titled "Midi Control Apparatus and Midi System," details an innovative MIDI apparatus that allows for seamless control of MIDI instruments. This technology generates operation ON and OFF signals in response to MIDI format signals, thereby ensuring consistent sound output, even during discontinuities in the playback of record media.

The second patent, "Amplifier Circuit," introduces a push-pull amplifier circuit utilizing bipolar transistors. This design effectively eliminates non-linear distortion without relying on negative AC feedback. The stability of this circuit is significantly improved at very low frequencies, thanks to a current mirror circuit that supplies consistent currents to the transistors, resulting in enhanced sound fidelity.

Career Highlights

Yatsuhashi has been integral to Pioneer Electronic Corporation, where she leverages her inventive skills to drive innovation in audio technology. Her dedication to her craft and her ingenuity have positioned her as a leader in her field, contributing to the development of products that resonate with musicians and sound engineers alike.

Collaborations

Throughout her career, Kiyomi Yatsuhashi has collaborated with industry stalwarts like Akio Ozawa and Susumu Sueyoshi. These partnerships have facilitated the exchange of ideas and technical knowledge, fostering an environment conducive to creativity and innovation in the realm of electronic music instruments.

Conclusion

Kiyomi Yatsuhashi's contributions to MIDI technology and amplifier circuit design underline her status as an influential figure in the world of innovation. Her pioneering patents not only advance the functionality of electronic instruments but also inspire future generations of inventors and musicians. With her ongoing work at Pioneer Electronic Corporation, the future of music technology continues to look promising.

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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