Kasugai, Japan

Osamu Imai

This inventor holds 17 USPTO granted patents, plus 2 CIPO patents, primarily in Voltage Non-Linear Resistors. Top assignee: Ngk Insulators, Inc.. Active years: 1988-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Imai. Retrieved from https://idiyas.com/inventor/osamu-imai

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

Calculating rank

% Patents Active = 100.0


Average Co-Inventor Count = 2.0

ph-index = 7

Forward Citations = 121(Granted Patents)


Company Filing History:


Years Active: 1988-2007

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Areas of Expertise:
Voltage Non-Linear Resistor
Piezoelectric Semiconductor
Insulator Coating
Coal Ash Solidification
Zinc Oxide Manufacturing
Glaze Production
Electrical Insulation
Resistor Manufacturing Process
Gapped Lightning Arrestors
Semiconductive Materials
Insulator Body
Non-Linear Devices
17 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Osamu Imai

Introduction: Osamu Imai, an accomplished inventor hailing from Kasugai, Japan, is renowned for his significant contributions to the field of materials science. With a portfolio of 17 patents, he demonstrates an exceptional ability to innovate within the realm of semiconductive materials and insulator technologies.

Latest Patents: Among Imai's latest inventions is a semiconductive glaze product that showcases a low thermal expansion coefficient while maintaining critical glaze characteristics. This product, when applied to insulators, enhances their mechanical strength. The innovative glaze composition includes KNaO—MgO—CaO—AlO-SiO base components, with specific ratios designed to optimize performance. Additionally, Imai has developed a method for producing an insulator coated with this semiconductive glaze. His joint insulator body concept utilizes alumina cement mortar to substantially improve the mechanical and electrical strength of insulators, with notable advancements in curing time that ultimately lower production costs.

Career Highlights: Osamu Imai has made remarkable strides in patent development, proving his expertise and commitment to advancing technology in his field. With 17 patents to his name, he stands out as a leader in innovative materials.

Collaborations: Throughout his career at NGK Insulators, Inc., Imai has collaborated with talented colleagues, including Ritsu Sato and Masami Nakata. Their joint efforts have significantly contributed to the advancements in insulator technologies and materials science.

Conclusion: Osamu Imai's contributions to the innovation landscape are noteworthy, with a strong emphasis on enhancing the performance and characteristics of insulative materials. His patents not only reflect his ingenuity but also his dedication to improving technology that benefits the industry and society at large.

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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