Tokyo, Japan

Hiroyuki Ishinaga

This inventor holds 196 USPTO granted patents and 13 published patent applications and 12 EPO patents, primarily in Ultrafine Bubble Technology (CPC class B41J2-05). Top assignees: Canon Kabushiki Kaisha, Canon Finetech Inc., Canon Finetech Nisca Inc.. Active years: 1989-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Ishinaga. Retrieved from https://idiyas.com/inventor/hiroyuki-ishinaga

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

USPTO Granted Patents = 196 

% Patents Active = 74.0

 

Average Co-Inventor Count = 5.2

ph-index = 27

Forward Citations = 2,615(Granted Patents)

Forward Citations (Not Self Cited) = 2,480(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Arakawa-ku, JP (2001)
  • Tokyo, JP (1989 - 2023)

Company Filing History:


Years Active: 1989-2026

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Areas of Expertise:
Ultrafine Bubble Generation
Bubble Containing Liquid
Liquid Ejection Apparatus
Print Module
Ink Supply System
Recording Medium
Liquid Supply System
Solid Semiconductor Element
Ink Jet Recording Apparatus
Liquid Accommodating Container
Fine Bubble Generating
Image Support Material
196 patents (USPTO):Explore Patents

Title: Hiroyuki Ishinaga: Pioneering Innovations in Tokyo, JP

Introduction:

Hiroyuki Ishinaga, a prolific inventor based in Tokyo, JP, is renowned for his groundbreaking work in various fields, particularly in the development of devices for producing ultrafine bubble-containing liquids. With an impressive portfolio of 188 patents, Ishinaga has consistently demonstrated his expertise and ingenuity in creating cutting-edge solutions. This article explores his latest patents, career highlights, noteworthy collaborations, and the lasting impact of his contributions.

Latest Patents:

Among Hiroyuki Ishinaga's latest patents, the "Ultrafine bubble-containing liquid producing apparatus and ultrafine bubble-containing liquid producing method" stands out. This invention aims to efficiently produce a liquid that contains ultrafine bubbles of a desired gas. The apparatus comprises a gas dissolving unit that dissolves predetermined gas into a liquid, along with a UFB generating unit that creates ultrafine bubbles in the gas-dissolved liquid. By introducing control conditions, the apparatus optimizes the operation of the gas dissolving and UFB generating units, enhancing the effectiveness of producing ultrafine bubble-containing liquids.

Another notable patent by Ishinaga is the "Ultrafine bubble generating method, ultrafine bubble generating apparatus, and ultrafine bubble-containing liquid." This invention focuses on generating ultrafine bubble-containing liquids with high purity. By utilizing a heating element within a liquid, the invention triggers film boiling at the interface between the liquid and the heating element. This process initiates the formation of film boiling bubbles, resulting in the generation of ultrafine bubbles near these film boiling bubbles. This method offers an efficient approach to producing ultrafine bubble-containing liquids with exceptional purity.

Career Highlights:

Throughout his illustrious career, Hiroyuki Ishinaga has held significant positions at esteemed companies, most notably Canon Kabushiki Kaisha and Canon Finetech Inc. Ishinaga's association with Canon highlights his invaluable contributions to the development of innovative technologies, particularly in the realm of imaging and printing solutions. His work has undoubtedly strengthened Canon's position as a leading provider of cutting-edge products and services.

Collaborations:

Hiroyuki Ishinaga has had the privilege of collaborating with esteemed coworkers Toshio Kashino and Yoichi Taneya. These collaborations have facilitated a vibrant exchange of knowledge and unique insights, leading to the creation of groundbreaking technologies. Together, Ishinaga, Kashino, and Taneya's collective expertise has undoubtedly sparked significant advancements in their respective fields and fostered an environment of innovation and collaboration.

Conclusion:

Hiroyuki Ishinaga's plethora of patents, remarkable career highlights, and influential collaborations speak volumes about his exceptional contributions to the field of innovation. His pioneering efforts in developing devices for producing ultrafine bubble-containing liquids have revolutionized this particular domain, bringing forth efficient and high-purity solutions. As an inventor, Ishinaga continues to leave a lasting impact on the Japanese innovation landscape, inspiring future generations of inventors and researchers to push the boundaries of what is possible.

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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