Okaya, Japan

Katsunari Kumagai

This inventor holds 11 USPTO granted patents and 6 published patent applications and 1 EPO patent. Top assignee: Seiko Epson Corporation. Active years: 2001-2026.

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

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

USPTO Granted Patents = 11 

% Patents Active = 100.0

 

Average Co-Inventor Count = 2.8

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2001-2026

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11 patents (USPTO):Explore Patents

Title: Innovations of Katsunari Kumagai

Introduction

Katsunari Kumagai is a prominent inventor based in Okaya, Japan. He has made significant contributions to the field of technology, particularly in the development of liquid discharge and recording apparatuses. With a total of 10 patents to his name, Kumagai's work has had a notable impact on the industry.

Latest Patents

Kumagai's latest patents include a liquid discharge apparatus and a recording apparatus. The liquid discharge apparatus features a transport path designed to move a medium in a specific direction, along with a liquid discharge head that discharges liquid onto the medium. It also includes a carriage that moves the discharge head in a width direction, a cover member above the carriage, and an air flow adjustment cover that ensures efficient operation. The recording apparatus consists of a carriage equipped with a recording head and an ink tank, which has an inlet port and a prism. A sensor located under the carriage detects the ink replenishment position, enhancing the functionality of the device.

Career Highlights

Kumagai has built a successful career at Seiko Epson Corporation, where he has been instrumental in advancing printing technology. His innovative designs and patents have contributed to the company's reputation as a leader in the industry.

Collaborations

Throughout his career, Kumagai has collaborated with talented individuals such as Satoshi Nakata and Kazumasa Harada. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Katsunari Kumagai's contributions to technology through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence advancements in liquid discharge and recording technologies.

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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