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For the Inventor, By the Inventor

Tokyo, Japan

Hirokazu Tatsuno

This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignee: Japan Display Inc.. Active years: 2016-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirokazu Tatsuno. Retrieved from https://idiyas.com/inventor/hirokazu-tatsuno

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

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 83.3

Average Co-Inventor Count = 5.7

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:

goldMedal6 out of 5,803 
 
Japan Display Inc.
 patents

Years Active: 2016-2017

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6 patents (USPTO):Explore Patents
1. 9704426 - Display device, display system, and image processing circuit (2017-07-11),
2. 9646567 - Display device, electronic apparatus, and color conversion method (2017-05-09),
3. 9501983 - Color conversion device, display device, and color conversion method (2016-11-22),
4. 9324283 - Display device, driving method of display device, and electronic apparatus (2016-04-26),
5. 9311886 - Display device including signal processing unit that converts an input signal for an input HSV color space, electronic apparatus including the display device, and drive method for the display device (2016-04-12),
6. 9262970 - Display device and electronic apparatus (2016-02-16),

Title: Hirokazu Tatsuno: Display Technology Inventor.

Introduction

Hirokazu Tatsuno is an inventor based in Tokyo, Japan, associated with Japan Display Inc. His work focuses on display devices, image processing, and methods for improving display performance and power efficiency. Tatsuno is credited with 6 patents.

Latest Patents

- Display device, display system, and image processing circuit. This invention describes a display device with processing circuits on separate substrates. One circuit determines an expansion coefficient from image color values to improve luminance, while another applies the coefficient to the image data.

- Display device, electronic apparatus, and color conversion method. This invention concerns a display with pixels made up of multiple sub-pixels and a color-conversion unit designed to reduce power consumption. The conversion is not performed when its combined power use would exceed the display’s power consumption without conversion.

Career Highlights

Tatsuno’s listed inventions address two important display engineering goals: improving image luminance and managing power consumption. His work is associated with Japan Display Inc., a company active in display technology.

Collaborations

Tatsuno’s listed coworkers include Toshiyuki Nagatsuma and Masaaki Kabe.

Conclusion

Hirokazu Tatsuno’s patent work reflects a focus on image processing and energy-conscious display design, contributing to innovations associated with Japan Display Inc.

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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