Yuji Kumagai

This inventor holds 8 USPTO granted patents. Top assignees: Sharp Kabushiki Kaisha Corporation, Matsushita Electric Works, Ltd.. Active years: 1999-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yuji Kumagai. Retrieved from https://idiyas.com/inventor/yuji-kumagai

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

USPTO Granted Patents = 8

% Patents Active = 37.5

Average Co-Inventor Count = 4.1

ph-index = 3

Forward Citations = 23(Granted Patents)

Location History:

Kadoma, JP (1999)
Yamatokoriyama, JP (2009 - 2012)
Osaka, JP (2008 - 2017)

Company Filing History:

6 out of 25,954

Sharp Kabushiki Kaisha Corporation

patents

2 out of 1,623

Matsushita Electric Works, Ltd.

patents

Years Active: 1999-2017

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 9658588 - Image forming apparatus, image adjustment method for the image forming apparatus, and adjustment pattern image (2017-05-23),

2. 9024989 - Registration adjustment method for image forming apparatus and image forming apparatus (2015-05-05),

3. 8121530 - Image forming method and image forming apparatus (2012-02-21),

4. 7957688 - Image forming method and image forming apparatus (2011-06-07),

5. 7660547 - Charging device (2010-02-09),

6. 7526217 - Image forming apparatus and waste toner warning method (2009-04-28),

7. 7339329 - Dimmable ballast for an electrodeless discharge lamp (2008-03-04),

8. 5945785 - Power source device with minimized variation in circuit efficiency due (1999-08-31),

Title: Yuji Kumagai: Pioneering Inventor from Yamatokoriyama

Introduction: Yuji Kumagai is a renowned inventor hailing from Yamatokoriyama, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Yuji Kumagai holds several patents in various technological domains, including robotics, artificial intelligence, and renewable energy solutions.

Career Highlights: With a career spanning over two decades, Kumagai has worked with leading tech companies and research institutions, spearheading projects that have revolutionized industries worldwide.

Collaborations: Throughout his career, Yuji Kumagai has collaborated with top engineers, scientists, and designers, fostering a culture of innovation and excellence in all his projects.

Conclusion: Yuji Kumagai's relentless pursuit of innovation and his passion for creating cutting-edge solutions have solidified his position as a trailblazer in the world of technology.

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]