Tokyo, Japan

Nobuo Shimotsuma

This inventor holds 3 USPTO granted patents. Top assignee: Kabushiki Kaisha Daini Seikosha. Active years: 1978-1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuo Shimotsuma. Retrieved from https://idiyas.com/inventor/nobuo-shimotsuma

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


% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 2

Forward Citations = 39(Granted Patents)


Company Filing History:


Years Active: 1978-1980

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3 patents (USPTO):Explore Patents

Title: Nobuo Shimotsuma: Innovator in Electronic Timepiece Technology

Introduction

Nobuo Shimotsuma is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of electronic timepieces, holding a total of 3 patents. His innovative designs and technical expertise have positioned him as a key figure in the industry.

Latest Patents

One of his latest patents is a voltage regulated electronic timepiece. This invention features a voltage regulating circuit that supplies a regulated voltage to the electronic circuit of an electronic timepiece. The circuit consists of an N-MOS and a P-MOS transistor pair connected in series, with drains and gates linked at a common junction. A constant current source is included to provide a steady current through the transistor pair, ensuring the development of the regulated voltage. Additionally, the voltage regulating circuit and the electronic circuit are both integrated on a common integrated circuit chip.

Another notable patent is for an electronic timepiece that includes an oscillating circuit for producing a standard time signal. This device features a dividing circuit that divides the output signal from the oscillating circuit and a driving circuit. The output signal from the driving circuit is controlled by a cooperative controlling circuit that works with the dividing circuit to adjust the division of the standard time signal.

Career Highlights

Nobuo Shimotsuma is currently employed at Kabushiki Kaisha Daini Seikosha, where he continues to develop innovative technologies in electronic timekeeping. His work has been instrumental in advancing the functionality and reliability of electronic timepieces.

Collaborations

Throughout his career, Nobuo has collaborated with various professionals in the field, including his coworker Shojiro Komaki. Their combined expertise has led to the development of cutting-edge technologies in electronic timepieces.

Conclusion

Nobuo Shimotsuma's contributions to the field of electronic timepieces are noteworthy. His innovative patents and ongoing work at Kabushiki Kaisha Daini Seikosha highlight his commitment to advancing technology in this area. His achievements continue to influence the industry and inspire future innovations.

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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