Matsumoto, Japan

Naoto Yokoyama

This inventor holds 21 USPTO granted patents and 1 published patent application and 2 EPO patents, primarily in Piezoelectric Devices. Top assignee: Seiko Epson Corporation. Active years: 2009-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoto Yokoyama. Retrieved from https://idiyas.com/inventor/naoto-yokoyama

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

USPTO Granted Patents = 21 

% Patents Active = 81.0


Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 24(Granted Patents)


Location History:

  • Nagano-ken, JP (2009 - 2010)
  • Suwa, JP (2010 - 2014)
  • Matsumoto, JP (2017 - 2021)

Company Filing History:


Years Active: 2009-2026

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Areas of Expertise:
Liquid Ejecting Head
Piezoelectric Actuator
Liquid Ejecting Apparatus
Liquid Discharging Head
Piezoelectric Device
Actuator Device
Liquid Discharge Apparatus
Manufacturing Method
21 patents (USPTO):Explore Patents

Title: The Innovative Journey of Naoto Yokoyama: Pioneering Advances in Piezoelectric Technology

Introduction: Naoto Yokoyama, based in Matsumoto, Japan, is a prominent inventor recognized for his significant contributions to the field of piezoelectric devices. With a remarkable portfolio of 18 patents, he has made considerable strides in developing technology that enhances liquid ejection mechanisms.

Latest Patents: Yokoyama's latest innovations include a variety of advanced technologies such as a piezoelectric device, liquid ejecting head, and a comprehensive manufacturing method for piezoelectric devices. His piezoelectric device features a unique design that includes a substrate with several recesses, a vibrating plate, and intricately designed piezoelectric elements. This configuration ensures optimized functionality by allowing for precise control over vibrations. The liquid ejecting head he developed integrates piezoelectric elements to enhance the efficacy of liquid ejection, showcasing the practical applications of his inventions in real-world scenarios.

Career Highlights: Throughout his tenure at Seiko Epson Corporation, Yokoyama has been instrumental in pushing the boundaries of piezoelectric technology. His work has not only garnered a multitude of patents but has also played a crucial role in the advancement of liquid ejecting apparatuses. The invention of devices that utilize advanced materials like zirconium oxide outlines his innovative approach, which combines material science with practical engineering.

Collaborations: In his pursuit of innovation, Yokoyama has collaborated with esteemed colleagues such as Eiju Hirai and Motoki Takabe. These partnerships have led to enhanced research outcomes and the exploration of new ideas in the field, reflecting the importance of teamwork in technological innovation.

Conclusion: Naoto Yokoyama stands out as a significant contributor to the world of inventions, particularly in piezoelectric technology. With his ongoing commitment to innovation and collaboration, he continues to shape the future of liquid ejection mechanisms and related applications. His work at Seiko Epson Corporation exemplifies how a blend of creativity, engineering, and determination can lead to groundbreaking advancements in technology.

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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