Kawasaki, Japan

Tatsuo Kato

This inventor holds 18 USPTO granted patents, primarily in Analog Circuit Design. Top assignees: Fujitsu Corporation, Fujitsu Microelectronics Limited, Fuiitsu Limited. Active years: 1998-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuo Kato. Retrieved from https://idiyas.com/inventor/tatsuo-kato

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


% Patents Active = 83.3

Average Co-Inventor Count = 2.3

ph-index = 11

Forward Citations = 301(Granted Patents)


Company Filing History:


Years Active: 1998-2013

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Areas of Expertise:
Regulator Circuit
Linear Regulator
Power Supply
Level Conversion
Reference Voltage
Band Gap Circuit
Analog-to-Digital Converter
Successive Approximation
Sample-Hold Amplifier
Oscillation Circuit
Ferroelectric Memory
Output Buffer Circuit
18 patents (USPTO):Explore Patents

Title: The Innovative Mind of Tatsuo Kato: A Pioneer in Regulator Circuit Technology

Introduction: Tatsuo Kato, an accomplished inventor based in Kawasaki, Japan, has made significant contributions to the field of electronics. With a remarkable portfolio of 18 patents, Kato's work focuses on advanced circuit design, particularly in the realm of amplifier technology.

Latest Patents: Among his latest inventions is a groundbreaking regulator circuit that utilizes a differential pair type amplifier circuit. This innovative design comprises a first transistor that receives a first signal input and a second transistor, which receives a third signal generated from a second signal at a power supply voltage. The uniqueness of this invention lies in its ability to place elements requiring matching—namely, the two transistors—close to one another, regardless of the layout of the amplifier circuits. This improves performance and efficiency in circuit operation.

Career Highlights: Tatsuo Kato has worked with notable companies in the electronics sector, including Fujitsu Corporation and Fujitsu Microelectronics Limited. Throughout his career, Kato has demonstrated a commitment to pushing the boundaries of technology, contributing to several significant advancements in circuit design.

Collaborations: During his professional journey, Kato has collaborated with esteemed colleagues such as Suguru Tachibana and Hideo Nunokawa. These partnerships have helped foster his innovative spirit and drive for excellence in the world of electronics.

Conclusion: Tatsuo Kato’s ingenuity and dedication to his craft underscore his status as a pivotal figure in the landscape of electronic innovations. His creations, particularly in regulator circuit technology, continue to influence the industry and inspire future inventors. With his ongoing contributions, Kato exemplifies the spirit of innovation that defines modern technology.

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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