Yao, Japan

Tatsuo Nagayoshi

This inventor holds 2 USPTO granted patents. Top assignee: Hosiden Electronics Co., Ltd.. Active years: 1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Nagayoshi. Retrieved from https://idiyas.com/inventor/tatsuo-nagayoshi-3csay3i3

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 5.5

ph-index = 2

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1983

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2 patents (USPTO):Explore Patents

Title: Innovations of Tatsuo Nagayoshi

Introduction

Tatsuo Nagayoshi is a notable inventor based in Yao, Japan. He has made significant contributions to the field of liquid crystal display technology. With a total of 2 patents, his work has had a considerable impact on modern display systems.

Latest Patents

Nagayoshi's latest patents include a method for frequency regulation of a tuning-fork vibrator and a liquid crystal display device. The liquid crystal display device features first and second color liquid crystal display elements of the negative guest-host type, which are arranged in adjacent and opposing relation to each other. These elements provide displays in different colors, with at least one of the electrodes of each color liquid crystal display element containing a display pattern. By controlling a changeover switch, an alternating drive voltage is applied from a drive circuit to one of the color liquid crystal display elements, allowing for a change in the background color of the display.

Career Highlights

Nagayoshi is currently employed at Hosiden Electronics Co., Ltd., where he continues to innovate in the field of electronics. His work has been instrumental in advancing display technologies that are widely used today.

Collaborations

Some of his notable coworkers include Shigeo Aoki and Shuzo Isogami, who have also contributed to various projects within the company.

Conclusion

Tatsuo Nagayoshi's contributions to liquid crystal display technology and his innovative patents highlight his importance in the field of electronics. His work continues to influence the development of modern display systems.

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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