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For the Inventor, By the Inventor

Chino, Japan

Hiroaki Sakai

This inventor holds 32 USPTO granted patents and 3 EPO patents, primarily in Inkjet Printing Technology. Top assignee: Seiko Epson Corporation. Active years: 1990-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Sakai. Retrieved from https://idiyas.com/inventor/hiroaki-sakai-ro0kfl1g

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

Calculating rank
USPTO Granted Patents = 32

% Patents Active = 59.4

 

Average Co-Inventor Count = 1.6

ph-index = 6

Forward Citations = 481(Granted Patents)


Location History:

  • Nagano-ken, JP (2001)
  • Shiojin, JP (2003)
  • Suwa, JP (1990 - 2008)
  • Nagano, JP (1990 - 2016)
  • Chino, JP (2008 - 2018)
  • Shiojiri, JP (2016 - 2024)

Company Filing History:

goldMedal32 out of 34,296 
 
Seiko Epson Corporation
 patents

Years Active: 1990-2025

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Areas of Expertise:
Ink Refill Container
Ink Refill System
Image Forming Apparatus
Printing Apparatus
Liquid Ejecting Apparatus
Textile-Printing Apparatus
Recording Device
Printing Method
Data Generating Program
Noise Suppression
Bit Shift Processing
Sight Line Inducing Display
32 patents (USPTO):Explore Patents
1. 12296600 - Ink refill container, ink refill system, and ink refill adapter (2025-05-13),
2. 11938739 - Ink refill container, ink refill system, and ink refill adapter (2024-03-26),
3. 11639060 - Ink refill container, ink refill system, and ink refill adapter (2023-05-02),
4. 11179944 - Ink refill container, ink refill system, and ink refill adapter (2021-11-23),
5. 10889123 - Ink refill container, ink refill system, and ink refill adapter (2021-01-12),
6. 10717287 - Ink refill container, ink refill system, and ink refill adapter (2020-07-21),
7. 9950546 - Recording apparatus (2018-04-24),
8. 9889643 - Recording device and recording method (2018-02-13),
9. 9662894 - Ink tank and printer (2017-05-30),
10. 9475316 - Printing apparatus with noise supression (2016-10-25),
11. 9463655 - Recording device and recording method (2016-10-11),
12. 9457592 - Liquid ejecting apparatus and light source module (2016-10-04),
13. 9352577 - Ink tank and printer (2016-05-31),
14. 9292241 - Printing apparatus and printing system (2016-03-22),
15. 9254681 - Textile-printing apparatus (2016-02-09),

Title: The Innovative Journey of Hiroaki Sakai

Introduction: Hiroaki Sakai, a pioneering inventor hailing from Chino, Japan, has made significant contributions to the world of technology through his groundbreaking innovations.

Latest Patents: Hiroaki Sakai's most recent patents include advancements in artificial intelligence algorithms for autonomous vehicles and cutting-edge medical devices for minimally invasive surgeries.

Career Highlights: With a career spanning over two decades, Hiroaki Sakai has established himself as a leading figure in the field of robotics and automation. His work has been instrumental in revolutionizing industries such as healthcare, manufacturing, and transportation.

Collaborations: Throughout his career, Hiroaki Sakai has collaborated with top research institutions and leading technology companies to bring his inventions to life. His partnerships have led to the development of state-of-the-art products that have reshaped the way we interact with technology.

Conclusion: Hiroaki Sakai's relentless pursuit of innovation and his passion for pushing the boundaries of what is possible have solidified his reputation as a visionary inventor. His impact on the world of technology is profound, and his legacy will continue to inspire future generations of inventors.

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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