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For the Inventor, By the Inventor

Tokyo, Japan

Hiroyuki Saito

This inventor holds 126 USPTO granted patents and 19 published patent applications and 14 EPO patents, primarily in Image Forming Apparatus (CPC class B41J2-165). Top assignees: Asahi Kogaku Kogyo Kabushiki Kaisha, Canon Kabushiki Kaisha, Konica Minolta, Inc.. Active years: 1984-2023.

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

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

Calculating rank
USPTO Granted Patents = 126 

% Patents Active = 81.7

 

Average Co-Inventor Count = 2.9

ph-index = 12

Forward Citations = 621(Granted Patents)

Forward Citations (Not Self Cited) = 581(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Chiba, JP (1990 - 1995)
  • Shibata, JP (2002)
  • Saitama, JP (1986 - 2003)
  • Inagi, JP (2003)
  • Toyota, JP (2003 - 2004)
  • Minato-Ku, JP (2006)
  • Kanagawa-ken, JP (2007)
  • Itabashi-ku, JP (2013)
  • Chiyoda-ku, JP (2015 - 2017)
  • Itabashi, JP (2020)
  • Kawasaki, JP (1993 - 2021)
  • Tokyo, JP (1984 - 2022)
  • Musashino, JP (2022)
  • Machida, JP (2002 - 2023)

Company Filing History:

goldMedal33 out of 3,132 
 
Asahi Kogaku Kogyo Kabushiki Kaisha
 patents
silverMedal28 out of 93,136 
 
Canon Kabushiki Kaisha
 patents
bronzeMedal15 out of 4,397 
 
Konica Minolta, Inc.
 patents
4. 10 out of 16,627 
 
Mitsubishi Electric Corporation
 patents
5. 7 out of 696 
 
Seikosha Co., Ltd.
 patents
6. 6 out of 2,526 
 
Konica Minolta Business Technologies, Inc.
 patents
7. 5 out of 36,735 
 
Nec Corporation
 patents
8. 4 out of 4,776 
 
Juniper Networks, Inc.
 patents
9. 2 out of 3,597 
 
Cypress Semiconductor Corporation
 patents
10. 2 out of 39,378 
 
Fujitsu Corporation
 patents
11. 2 out of 4,753 
 
Mitsubishi Heavy Industries Limited
 patents
12. 2 out of 2,887 
 
Victor Company of Japan, Limited
 patents
13. 2 out of 1,415 
 
Yokogawa Electric Corporation
 patents
14. 1 out of 1,398 
 
Hitachi High-Tech Corporation
 patents
15. 1 out of 10,092 
 
Honda Giken Kogyo Kabushiki Kaisha
 patents
16. 1 out of 22,925 
 
Honda Motor Co., Ltd.
 patents
17. 1 out of 176 
 
Nippon Chemi-Con Corporation
 patents
18. 1 out of 54 
 
Ntt Communications Corporation
 patents
19. 1 out of 1,056 
 
Pentax Corporation
 patents
20. 4 out of 834,601 
Other
 patents
where one patent can have more than one assignee

Years Active: 1984-2023

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Areas of Expertise:
Image Forming Apparatus
Developing Device
Printing Technology
Charged Particle Beam
Vehicle Power Supply
Battery State Detection
Control Method
Protocol Converter
Electric Machine
Storage Device
Notification Control
Electrostatigraphic
126 patents (USPTO):Explore Patents
1. 11613138 - Printing apparatus (2023-03-28),
2. 11483419 - Protocol converter connectable between field device and device control apparatus, and data transmission by protocol converter (2022-10-25),
3. 11480905 - Image forming apparatus (2022-10-25),
4. 11345172 - Printing apparatus and tray unit (2022-05-31),
5. 11276548 - Charged particle beam device and charged particle beam adjustment method (2022-03-15),
6. 11155105 - Recording apparatus (2021-10-26),
7. 11072195 - Printing apparatus (2021-07-27),
8. 10949340 - Block mapping systems and methods for storage device (2021-03-16),
9. 10940525 - Riveting machine and control method for same (2021-03-09),
10. 10919070 - Coating device with roller and doctor blade (2021-02-16),
11. 10880151 - Notification control device, notification control system, notification control method, and storage medium (2020-12-29),
12. 10642202 - Image forming apparatus (2020-05-05),
13. 10635024 - Developing device and image forming apparatus, wherein the developing roller includes a magnetic pole forming part to be formed with a plurality of magnetic poles along a circumference direction of the developing roller (2020-04-28),
14. 10558141 - Image forming apparatus, developing device, and developer liquid-level detection program (2020-02-11),
15. 10534305 - Image forming apparatus and non-transitory recording medium storing computer readable program (2020-01-14),

Hiroyuki Saito: Pioneering Innovations in Tokyo, JP

Introduction:

Hiroyuki Saito, a prolific inventor based in Tokyo, Japan, has made significant contributions to the field of printing technology and data transmission systems. With an impressive portfolio of 126 patents, Saito's inventive spirit and dedication to technological advancements have propelled him to the forefront of innovation.

Latest Patents:

Among Saito's recent patents is a cutting-edge Printing Apparatus that revolutionizes the process of ink circulation and cooling in printing devices. This innovation showcases his expertise in optimizing printing efficiency and quality. Additionally, his Protocol Converter design facilitates seamless data transmission between field devices and control apparatus, enhancing communication in industrial settings.

Career Highlights:

Throughout his career, Hiroyuki Saito has showcased his ingenuity while working at esteemed companies such as Asahi Optical Co., Ltd. and Canon Inc., where he honed his skills and expertise in the realm of technological innovation. His inventive prowess has been instrumental in shaping the future of printing technology and data communication systems.

Collaborations:

Saito has collaborated with industry experts and talented individuals, including notable coworkers Minoru Suzuki and Hiroshi Orita. Together, they have synergized their talents to push the boundaries of technological innovation and drive forward groundbreaking projects.

Conclusion:

In conclusion, Hiroyuki Saito stands as a visionary inventor whose relentless pursuit of excellence has led to numerous groundbreaking patents in the realms of printing technology and data transmission. His innovative contributions continue to inspire and shape the landscape of technological advancements, making him a pivotal figure in the world of innovation.

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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