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For the Inventor, By the Inventor

Aichi, Japan

Shunkichi Nozaki

This inventor holds 5 USPTO granted patents. Top assignee: Ngk Spark Plug Company, Limited. Active years: 1984-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shunkichi Nozaki. Retrieved from https://idiyas.com/inventor/shunkichi-nozaki

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

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 4

Forward Citations = 77(Granted Patents)


Company Filing History:

goldMedal5 out of 2,606 
 
Ngk Spark Plug Company, Limited
 patents

Years Active: 1984-1993

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5 patents (USPTO):Explore Patents
1. 5264681 - Ceramic heater (1993-11-23),
2. 4786781 - Silicon nitride glow plug with alumina corrosion and erosion protective (1988-11-22),
3. 4690872 - Ceramic heater (1987-09-01),
4. 4668452 - Process for producing silicon carbide heating elements (1987-05-26),
5. 4469658 - Sintered silicon carbide materials having metallized surface and process (1984-09-04),

Title: Shunkichi Nozaki: Innovator in Ceramic Heater Technology

Introduction

Shunkichi Nozaki is a prominent inventor based in Aichi, Japan. He has made significant contributions to the field of ceramic heater technology, holding a total of 5 patents. His innovative designs have applications in various industries, particularly in automotive and energy sectors.

Latest Patents

One of Nozaki's latest patents is a ceramic heater designed for use as a glow plug in diesel engines or as an igniter for oil or gas burners. This ceramic heater features a nonoxide ceramic body that includes a heating part and a supporting part, with a heating resistor embedded in the heating part. The heating resistor can be made from materials such as tungsten, tungsten carbide, or metal nitrides like titanium nitride or tantalum nitride. The heating part is constructed from aluminum nitride ceramic, known for its high heat conductivity and oxidation resistance at elevated temperatures. The supporting part is made from silicon nitride ceramic, which has lower heat conductivity. This innovative design enhances the performance and durability of the ceramic heater.

Another notable patent involves a silicon nitride glow plug that offers alumina corrosion and erosion protection. This ceramic glow plug consists of a ceramic heater embedded with a metal wire, which is brazed to a metal tube and holder. The tip of the ceramic heater is coated with a highly heat and corrosion-resistant material to minimize erosion from combustion gases. The protective coating can be a thin CVD film of alumina or silicon carbide, ensuring longevity and reliability in harsh conditions.

Career Highlights

Shunkichi Nozaki is associated with NGK Spark Plug Company, Limited, where he has been instrumental in developing advanced ceramic technologies. His work has significantly impacted the efficiency and reliability of ignition systems in various applications.

Collaborations

Nozaki has collaborated with notable colleagues, including Yukihiro Kimura and Rokuro Kambe, contributing to the advancement of ceramic heater technology.

Conclusion

Shunkichi Nozaki's innovative work in ceramic heater technology has led to significant advancements in the field. His patents reflect a commitment to enhancing performance and durability in critical applications. His contributions continue to influence the industry positively.

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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