Kanagawa, Japan

Yasuhisa Ehara

This inventor holds 32 USPTO granted patents and 1 published patent application and 6 EPO patents, primarily in Image Forming Technology. Top assignee: Ricoh Company, Ltd.. Active years: 2005-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhisa Ehara. Retrieved from https://idiyas.com/inventor/yasuhisa-ehara

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

USPTO Granted Patents = 32 

% Patents Active = 31.3


Average Co-Inventor Count = 3.4

ph-index = 9

Forward Citations = 175(Granted Patents)


Location History:

  • Kanagawa-ken, JP (2009 - 2010)
  • Kamakura, JP (2005 - 2015)
  • Kanagawa, JP (2005 - 2017)

Company Filing History:


Years Active: 2005-2017

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Areas of Expertise:
Image Forming Apparatus
Color Registration
Speed Deviation Detection
Multicolor Imaging
Drive Transmission Device
Fluctuation Detection
Color Drift Correction
Quality Color Image
Rotational Phase Adjustment
Printer Engine
Charging Operation
Process Cartridge
32 patents (USPTO):Explore Patents

Title: Innovations of Yasuhisa Ehara: Pioneering Printing Systems and Technologies

Introduction: Yasuhisa Ehara, based in Kanagawa, Japan, is an accomplished inventor holding a remarkable total of 32 patents. His innovative work primarily revolves around advanced printing systems and image forming technologies, contributing significantly to the industry through novel inventions.

Latest Patents: Yasuhisa Ehara's most recent patents include a "Printed Matter Delivery System," an "Image Forming Apparatus," and a "Printed Matter Delivery Apparatus." The printed matter delivery system features a combination of units that manage printing and delivery jobs effectively. It includes a print management unit, a delivery management unit, and a delivery authentication processing unit to ensure that the printed materials are securely delivered to their intended destinations. Additionally, he developed a "Driving Device" and an image forming apparatus that incorporates a planetary gear decelerator, a drive source, and an integrated rotation speed detection system, which enhances the functionality and reliability of the devices.

Career Highlights: Yasuhisa Ehara's career is marked by significant achievements in the realm of printing technology. His inventions have played a crucial role in transforming how printed materials are processed and delivered. Working at Ricoh Company, Ltd., he has contributed to various projects aimed at improving the efficiency and effectiveness of printing solutions.

Collaborations: Throughout his career, Yasuhisa has worked alongside esteemed colleagues such as Noriaki Funamoto and Kazuhiko Kobayashi. Their collaborations have fostered an environment of innovation, enabling them to push the boundaries within the printing industry.

Conclusion: Yasuhisa Ehara stands out as a distinguished inventor in the field of printing technologies. His extensive portfolio of patents reflects his dedication to innovation and his ability to address the evolving needs of the market. As he continues to develop groundbreaking solutions, he remains a vital contributor to the future of printing 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]
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