Nagoya, Japan

Tomio Sugiyama

This inventor holds 21 USPTO granted patents, primarily in Gas Sensing Technology. Top assignees: Denso Corporation, Nippondenso Co., Ltd.. Active years: 1995-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tomio Sugiyama. Retrieved from https://idiyas.com/inventor/tomio-sugiyama

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 = 3.7

ph-index = 8

Forward Citations = 134(Granted Patents)


Company Filing History:


Years Active: 1995-2017

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Areas of Expertise:
Gas Sensor
Air-Fuel Ratio Sensor
Gas Concentration Detector
Oxygen Sensor
NOx Sensor
Multilayered Sensor
Composite Gas Sensor
Defect Detection
Ceramic Body
Sensing Element
Oxygen Concentration
Manufacturing Method
21 patents (USPTO):Explore Patents

Title: Tomio Sugiyama: Innovator in Honeycomb Structural Body Technologies

Introduction: Tomio Sugiyama is a prominent inventor based in Nagoya, Japan. With a remarkable portfolio of 21 patents, Sugiyama has made significant contributions to the field of engineering, particularly in technologies related to honeycomb structures and air-fuel ratio sensors. His inventions showcase his commitment to enhancing the performance and reliability of various systems.

Latest Patents: Among Sugiyama's latest innovations are two noteworthy patents. The first is a method of detecting defects in honeycomb structural bodies. This innovative approach involves sealing both end sections of the honeycomb structure and introducing air in the direction of exhaust gas flow. By placing microphones around the structure, Sugiyama enables the detection of sounds caused by air leaks, leading to effective identification of defects such as cracks and holes.

Another significant invention is the multilayered air-fuel ratio sensor. This sensor features multiple substrate layers, with at least one heterogeneous boundary layer inserted between them. This boundary layer is designed to absorb thermal shocks and other stresses, thus preventing the growth of cracks and enhancing the sensor's durability and efficiency.

Career Highlights: Throughout his career, Tomio Sugiyama has worked with leading companies in the industry, including Denso Corporation and Nippondenso Co., Ltd. His expertise and inventive spirit have propelled advancements in the technologies he has contributed to, establishing him as a key figure in these organizations.

Collaborations: Sugiyama has collaborated with several talented individuals during his career, including Hiromi Sano and Shinichiro Imamura. These collaborations have fostered innovation and resulted in the development of groundbreaking technologies, further underscoring the importance of teamwork in the field of invention.

Conclusion: Tomio Sugiyama's impressive body of work highlights his dedication to innovation in engineering. With a strong focus on enhancing the reliability of honeycomb structures and developing advanced sensors, Sugiyama continues to make a lasting impact on the industry. His contributions and collaborations reflect the collaborative spirit of invention, paving the way for future advancements in 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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