Miyagi, Japan

Hiroyasu Umehara

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Ricoh Company, Ltd.. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyasu Umehara. Retrieved from https://idiyas.com/inventor/hiroyasu-umehara

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


% Patents Active = 100.0


Average Co-Inventor Count = 5.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Hiroyasu Umehara: Innovator in Liquid Discharge Technology

Introduction

Hiroyasu Umehara is a notable inventor based in Miyagi, Japan. He has made significant contributions to the field of liquid discharge technology. His innovative work has led to the development of a unique liquid discharge head that enhances the efficiency of liquid discharge apparatuses.

Latest Patents

Hiroyasu Umehara holds a patent for a liquid discharge head and liquid discharge apparatus. This invention includes a nozzle forming member with a nozzle designed to discharge liquid. It features an opening and closing member that can open and close the nozzle, along with a piezoelectric body that expands and contracts in response to a drive voltage. This mechanism actuates the opening and closing member, allowing for precise control of the nozzle. The design also incorporates a first housing member that houses the piezoelectric body and a ground member that contacts the inner side of the housing.

Career Highlights

Umehara is currently employed at Ricoh Company, Ltd., where he continues to innovate in the field of liquid discharge technology. His work has been instrumental in advancing the capabilities of liquid discharge systems, making them more efficient and reliable.

Collaborations

Hiroyasu Umehara has collaborated with talented coworkers such as Shusei Murai and Tatsumi Suzuki. Their combined expertise has contributed to the success of various projects within the company.

Conclusion

Hiroyasu Umehara is a distinguished inventor whose work in liquid discharge technology has made a significant impact. His patent and contributions at Ricoh Company, Ltd. highlight his dedication to innovation in this field.

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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