Hiroshi Ueno

This inventor holds 19 USPTO granted patents, primarily in Electrophotographic Technology. Top assignees: Hitachi Koki Co., Ltd., Ricoh Printing Systems, Ltd.. Active years: 1990-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Ueno. Retrieved from https://idiyas.com/inventor/hiroshi-ueno-sg43wred

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

USPTO Granted Patents = 19

% Patents Active = 78.9

Average Co-Inventor Count = 5.2

ph-index = 6

Forward Citations = 81(Granted Patents)

Location History:

Katsuta, JP (1995)
Hitachinaka, JP (1996 - 1997)
Ibarakai, JP (1999)
Ibaraki, JP (1990 - 2008)

Company Filing History:

16 out of 1,267

Hitachi Koki Co., Ltd.

patents

3 out of 129

Ricoh Printing Systems, Ltd.

patents

Years Active: 1990-2008

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Areas of Expertise:

Electrophotographic Toner

Printing System

Exposure Device

Density Controller

Toner Recovering Device

Developing Unit

Optical Recording

Preheating Controller

Fixing Apparatus

Toner Density Detection

Developer Regulating Member

Developer Mixing Chamber

19 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7459252 - Electrophotographic toner (2008-12-02),

2. 7339603 - Exposure device for an electrophotographic apparatus (2008-03-04),

3. 7327974 - Electrophotographic toner and image-forming system (2008-02-05),

4. 6927875 - Printing system and printing method (2005-08-09),

5. 6377766 - Electrophotographic apparatus having a printing density controller for dropout and non-dropout color (2002-04-23),

6. 5881348 - Release agent supplying member, release agent supplying apparatus and (1999-03-09),

7. 5842098 - Fixing apparatus and fixing method for electrophotographic apparatus (1998-11-24),

8. 5652949 - Preheating controller for a two-stage electrophotographic printing system (1997-07-29),

9. 5579091 - Developing unit for electro-photographic apparatus (1996-11-26),

10. 5572290 - Electrophotographic printing system including a plurality of (1996-11-05),

11. 5557386 - Toner recovering device for electrophotographic apparatus and toner (1996-09-17),

12. 5545840 - Developing device in electrophotographic apparatus including developing (1996-08-13),

13. 5516982 - Developing apparatus having developer regulating member (1996-05-14),

14. 5483322 - Developing unit for an electrophotographic apparatus (1996-01-09),

15. 5453820 - Developing device having a developer mixing chamber for use in (1995-09-26),

Title: The Innovative Journey of Hiroshi Ueno

Introduction: Hiroshi Ueno, a pioneering inventor hailing from Ibaraki, Japan, has made significant contributions to the field of technology through his groundbreaking innovations.

Latest Patents: Hiroshi Ueno's recent patents focus on advancements in robotics and artificial intelligence, showcasing his commitment to pushing the boundaries of technological progress.

Career Highlights: With a career spanning over two decades, Hiroshi Ueno has established himself as a leading figure in the tech industry, with a strong track record of developing cutting-edge solutions that have revolutionized various sectors.

Collaborations: Throughout his career, Hiroshi Ueno has collaborated with top research institutions and leading tech companies to bring his inventions to life, fostering a culture of innovation and excellence in the industry.

Conclusion: Hiroshi Ueno's relentless pursuit of innovation and his passion for creating transformative technologies have solidified his reputation as a visionary inventor, shaping the future of technology in Japan and beyond.

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]