Chiba, Japan

Dai Terasawa

This inventor holds 20 USPTO granted patents and 1 published patent application and 3 EPO patents, primarily in Biological Information Detection. Top assignees: Seiko Instruments Inc, Other. Active years: 2001-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Dai Terasawa. Retrieved from https://idiyas.com/inventor/dai-terasawa

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

USPTO Granted Patents = 20 

% Patents Active = 90.0

 

Average Co-Inventor Count = 3.0

ph-index = 6

Forward Citations = 137(Granted Patents)


Company Filing History:


Years Active: 2001-2019

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Areas of Expertise:
Portable Device
Biological Information
Wristwatch
Electronic Apparatus
Hinge Assembly
Timepiece
Garment
Battery Structure
Antenna
Air Pump
Mounting-Type Apparatus
20 patents (USPTO):Explore Patents

Title: Innovations by Dai Terasawa: A Pioneer in Portable Timepieces

Introduction

Dai Terasawa, an accomplished inventor based in Chiba, Japan, has made significant contributions to the field of portable device technology. With a total of 20 patents to his name, Terasawa has become a notable figure in the world of innovations, particularly in the design and functionality of portable timepieces. His inventive spirit has not only advanced technology but has also paved new paths for future devices.

Latest Patents

Among Terasawa's latest innovations are two noteworthy patents for portable timepieces. The first patent outlines a portable timepiece that features a case accommodating a power receiving coil, a bypass member comprised of a soft magnetic material, and a transformable first band. This innovative design allows the bypass member to be positioned between the power receiving coil and a charging device during the charging process. Similarly, the second patent presents another sophisticated design for a portable timepiece, wherein the power receiving coil is located on the rear surface of the case. This model also employs a bypass member and a first band that enables optimal charging functionality.

Career Highlights

Throughout his career, Dai Terasawa has been associated with esteemed companies such as Seiko Instruments Inc. His work there showcases his dedication to enhancing the capabilities of portable devices, particularly in the timepiece sector. His inventions have continually evolved, contributing vastly to advancements in this competitive industry.

Collaborations

Terasawa has collaborated with talented individuals in the field, including Hideki Okuda and Teruo Kato. These collaborations have allowed for a rich exchange of ideas and a pooling of expertise, ultimately leading to the innovative designs and patents that Terasawa is known for.

Conclusion

Dai Terasawa stands as a testament to the power of innovation in the realm of portable technology. His impressive portfolio of patents highlights his commitment to advancing timepiece design, making him a key player in the evolution of portable devices. As technology continues to advance, Terasawa's work will undoubtedly influence future innovations in the industry.

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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