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For the Inventor, By the Inventor

Chino, Japan

Toshimasa Usui

This inventor holds 5 USPTO granted patents. Top assignee: Seiko Epson Corporation. Active years: 1993-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshimasa Usui. Retrieved from https://idiyas.com/inventor/toshimasa-usui

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 3

Forward Citations = 43(Granted Patents)


Location History:

  • Suwa, JP (1993 - 2003)
  • Chino, JP (2002 - 2019)

Company Filing History:

goldMedal5 out of 34,268 
 
Seiko Epson Corporation
 patents

Years Active: 1993-2019

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5 patents (USPTO):Explore Patents
1. 10333491 - Oscillator, electronic apparatus, and moving object (2019-06-25),
2. 6611157 - Differential signal output circuit (2003-08-26),
3. 6518813 - Clock generating circuit and semiconductor integrated circuit using the same (2003-02-11),
4. 6414528 - Clock generation circuit, serial/parallel conversion device and parallel/serial conversion device together with semiconductor device (2002-07-02),
5. 5223804 - Fabrication process for IC circuit and IC circuits fabricated thereby (1993-06-29),

Title: Toshimasa Usui: Innovator in Electronic Technology

Introduction

Toshimasa Usui is a prominent inventor based in Chino, Japan. He has made significant contributions to the field of electronic technology, holding a total of 5 patents. His work focuses on developing advanced electronic devices that enhance functionality and performance.

Latest Patents

Among his latest patents are several innovative designs. One notable invention is an oscillator that includes a package with multiple sides, a resonator, and an oscillation circuit. This oscillator features an output terminal that generates a clock signal and a control terminal that updates the operation state of the oscillation circuit. Another significant patent is a differential signal output circuit, which comprises two output stages with serially connected transistors. This circuit is designed to supply specified drain current based on input signals, showcasing Usui's expertise in electronic design.

Career Highlights

Toshimasa Usui is currently employed at Seiko Epson Corporation, a leading company in the electronics industry. His role involves researching and developing cutting-edge technologies that contribute to the company's innovative product lineup. His work has been instrumental in advancing the capabilities of electronic devices.

Collaborations

Throughout his career, Usui has collaborated with talented individuals such as Shigenori Isozaki and Akihiro Fukuzawa. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Toshimasa Usui is a distinguished inventor whose contributions to electronic technology have made a lasting impact. His innovative patents and collaborations reflect his commitment to advancing the field. His work continues to inspire future innovations in electronics.

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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