Tokyo, Japan

Seiji Kubo

This inventor holds 6 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents and 2 EPO patents. Top assignees: Ihi Corporation, Kubo Sekkei, Ltd.. Active years: 1984-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Kubo. Retrieved from https://idiyas.com/inventor/seiji-kubo-tiytunue

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

Calculating rank
USPTO Granted Patents = 6 

% Patents Active = 100.0


 

Average Co-Inventor Count = 4.0

ph-index = 2

Forward Citations = 12(Granted Patents)


Company Filing History:


Years Active: 1984-2023

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6 patents (USPTO):Explore Patents

Title: Inventor Seiji Kubo: Pioneering Film Cooling Structures in Gas Turbine Engines

Introduction

Seiji Kubo is a notable inventor based in Tokyo, Japan, recognized for his significant contributions to the field of gas turbine technology. With a total of six patents to his name, Kubo’s innovations focus mainly on improving the efficiency and functionality of turbine blades and cooling structures used in gas turbine engines.

Latest Patents

Kubo's most recent work includes innovative designs for film cooling structures and turbine blades specifically tailored for gas turbine engines. One of his patented structures features a wall part extending both forward and rearward, with a uniquely designed cooling hole. This cooling hole is tubular and inclined, allowing the outlet to be positioned behind the inlet. Notably, it incorporates a throat with a minimum cross-section, transitioning into a diffuser part that widens as it approaches the outlet, ensuring optimal cooling performance. A distinctive feature is the inner peripheral surface of the cooling hole, which includes both a flat portion and a convex portion that aids in creating effective coolant distribution and enhanced thermal protection.

Another of his commendable patents details a film cooling structure that consists of a straight-tube part and a diffuser part characterized by a semicircular or semi-elliptical channel cross-section, larger than that of the straight-tube part. This design meticulously increases the area of the channel cross-section as it approaches the outlet, maximizing cooling efficiency.

Career Highlights

Throughout his career, Seiji Kubo has been associated with prominent organizations including IHI Corporation and Kubo Sekkei, Ltd. His tenure at these companies allowed him to leverage his engineering expertise, further establishing his reputation in the industry as an innovative thinker.

Collaborations

In his journey as an inventor, Kubo has collaborated with esteemed colleagues such as Yoji Okita and Chiyuki Nakamata. Their collective efforts have contributed to advances in gas turbine technology, leading to improved performance and reliability in various applications.

Conclusion

Seiji Kubo stands out as a significant inventor in the realm of gas turbine technology, with a keen focus on enhancing cooling mechanisms and turbine efficiency. His ongoing contributions continue to inspire advancements in engineering, making a lasting impact on the industry.

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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