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For the Inventor, By the Inventor

Azumino, Japan

Hiromu Miyazawa

This inventor holds 98 USPTO granted patents and 11 published patent applications and 9 EPO patents, primarily in Liquid Ejecting Technology (CPC class B41J2-14233). Top assignee: Seiko Epson Corporation. Active years: 1994-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromu Miyazawa. Retrieved from https://idiyas.com/inventor/hiromu-miyazawa

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

USPTO Granted Patents = 98 

% Patents Active = 52.0

 

Average Co-Inventor Count = 2.8

ph-index = 9

Forward Citations = 319(Granted Patents)

Forward Citations (Not Self Cited) = 289(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Toyoshina-cho, JP (2004 - 2005)
  • Toyashina-machi, JP (2005)
  • Toyoshina-machi, JP (2003 - 2007)
  • Nagano-ken, JP (2004 - 2007)
  • Toyoshima-machi, JP (2006 - 2007)
  • Toyoshira-machi, JP (2007)
  • Suwa, JP (1994 - 2009)
  • Nagano, JP (2007 - 2022)
  • Azumino, JP (2009 - 2023)

Company Filing History:

goldMedal98 out of 34,268 
 
Seiko Epson Corporation
 patents

Years Active: 1994-2026

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Areas of Expertise:
Liquid Ejecting Head
Piezoelectric Element
Ultrasonic Device
Ink Jet Printing
Droplet-Ejecting Apparatus
Liquid Ejecting Apparatus
Ultrasonic Sensor
Electronic Apparatus
Probe
Actuator Device
Liquid Ejection Head
Measurement Apparatus
98 patents (USPTO):Explore Patents
1. 12728393 - Gas separation membrane (2026-09-08),
2. 12646641 - Soft magnetic alloy ribbon and magnetic core (2026-06-02),
3. 12583217 - Calibration method (2026-03-24),
4. 12552177 - Ink jet printing method and ink jet printing set (2026-02-17),
5. 12285954 - Liquid ejecting head and liquid ejecting apparatus (2025-04-29),
6. 11731421 - Liquid ejecting apparatus control method and liquid ejecting apparatus (2023-08-22),
7. 11565523 - Liquid ejecting head and liquid ejecting apparatus (2023-01-31),
8. 11535034 - Piezoelectric element and liquid ejecting head including piezoelectric layer having improved lattice ratio (2022-12-27),
9. 11529126 - Ultrasonic device, ultrasonic module, and ultrasonic measuring apparatus (2022-12-20),
10. 11458728 - Liquid ejecting apparatus control method and liquid ejecting apparatus (2022-10-04),
11. 11437565 - Piezoelectric element and liquid ejecting head (2022-09-06),
12. 11419579 - Ultrasonic sensor as well as probe and electronic apparatus (2022-08-23),
13. 11148419 - Liquid ejecting head and liquid ejecting apparatus (2021-10-19),
14. 10864726 - Liquid ejecting head and liquid ejecting apparatus (2020-12-15),
15. 10686117 - Piezoelectric element and liquid ejection head (2020-06-16),

Sure, here is the article about inventor Hiromu Miyazawa:

Title: Inventor Spotlight: Hiromu Miyazawa

Introduction:

Hiromu Miyazawa, a talented inventor hailing from Azumino, Japan, has made significant contributions to the field of technology with his innovative ideas and patents.

Latest Patents:

Hiromu Miyazawa holds an impressive total of 93 patents, with his most recent inventions focusing on liquid ejecting apparatus control methods and liquid ejecting heads. One of his notable patents involves a method of controlling a liquid ejecting apparatus by adjusting the waveform of the ejection pulse based on the viscosity and surface tension of the liquid in the nozzle.

Career Highlights:

Currently employed at Seiko Epson Corporation, Hiromu Miyazawa continues to drive innovation within the company through his groundbreaking inventions. His expertise in liquid ejecting technology has led to the development of advanced liquid ejecting heads that improve efficiency and accuracy in various applications.

Collaborations:

In his professional journey, Hiromu Miyazawa has collaborated with esteemed colleagues such as Setsuya Iwashita and Takamitsu Higuchi. Together, they have worked on projects that have pushed the boundaries of liquid ejecting technology and have garnered recognition in the industry.

Conclusion:

In conclusion, Hiromu Miyazawa stands as a prominent figure in the world of inventions, with a remarkable track record of patents and a dedication to advancing technology. His innovative spirit and collaborative efforts continue to inspire progress and shape the future of liquid ejecting systems.

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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