Osaka, Japan

Hiromitsu Katsui

This inventor holds 11 USPTO granted patents and 2 published patent applications. Top assignees: Sharp Kabushiki Kaisha Corporation, Semiconductor Energy Laboratory Co., Ltd.. Active years: 2011-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromitsu Katsui. Retrieved from https://idiyas.com/inventor/hiromitsu-katsui

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

Calculating rank
USPTO Granted Patents = 11 

% Patents Active = 63.6

Average Co-Inventor Count = 3.8

ph-index = 4

Forward Citations = 44(Granted Patents)


Location History:

  • Mie, JP (2011 - 2013)
  • Osaka, JP (2014 - 2018)

Company Filing History:


Years Active: 2011-2018

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11 patents (USPTO):Explore Patents

Title: Hiromitsu Katsui: Innovator in Display and Light-Emitting Technologies

Introduction

Hiromitsu Katsui is a prominent inventor based in Osaka, Japan. He has made significant contributions to the fields of display devices and light-emitting technologies. With a total of 11 patents to his name, Katsui's work has had a substantial impact on modern electronic devices.

Latest Patents

One of Katsui's latest patents is a display device and drive current detection method. This innovation involves a data line drive circuit that provides a voltage based on a detection voltage and a reference voltage. It detects a drive current that has passed through a drive transistor in a pixel circuit, ensuring high accuracy even when the threshold voltage of the drive transistor changes. Another notable patent is for a light-emitting device that includes a partition with an overhang portion. This design effectively suppresses crosstalk phenomena in light-emitting devices that utilize tandem elements.

Career Highlights

Throughout his career, Katsui has worked with notable companies such as Sharp Corporation and Semiconductor Energy Laboratory Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in technology.

Collaborations

Katsui has collaborated with esteemed colleagues, including Wataru Nakamura and Shoji Okazaki. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Hiromitsu Katsui's contributions to display and light-emitting technologies exemplify his innovative spirit and dedication to advancing the field. His patents reflect a commitment to enhancing the accuracy and efficiency of electronic devices.

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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