Wataru Nagai

This inventor holds 5 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 2 EPO patents. Top assignees: Oki Electric Industry Co., Ltd., Nippon Steel Corporation, Isuzu Motors Limited. Active years: 2002-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wataru Nagai. Retrieved from https://idiyas.com/inventor/wataru-nagai

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

USPTO Granted Patents = 5 (Patent Applications = 1)

% Patents Active = 100.0

CIPO Patents = 1

EPO Patents = 2 (Patent Applications = 4)

Average Co-Inventor Count = 4.2

ph-index = 3

Forward Citations = 176(Granted Patents)

Location History:

Tokyo, JP (2002 - 2012)
Fujisawa, JP (2021)

Company Filing History:

3 out of 4,980

Oki Electric Industry Co., Ltd.

patents

2 out of 3,711

Nippon Steel Corporation

where one patent can have more than one assignee

Years Active: 2002-2021

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 11162454 - Steel piston (2021-11-02),

2. 8182575 - Producing method of direct reduced iron (2012-05-22),

3. 6791894 - DRAM power-source controller that reduces current consumption during standby (2004-09-14),

4. 6574150 - Dynamic random access memory with low power consumption (2003-06-03),

5. 6438061 - Dynamic random access memory with low power consumption (2002-08-20),

Title: Wataru Nagai: Innovator in Steel Technology

Introduction

Wataru Nagai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of steel technology, holding a total of 5 patents. His innovative work has had a lasting impact on the industry.

Latest Patents

One of Wataru Nagai's latest patents is for a steel piston. This invention features an upper member with a specific chemical composition, including elements such as carbon, silicon, manganese, chromium, and molybdenum. The patent outlines precise formulas that ensure the quality and performance of the steel piston. Another notable patent is a producing method for direct reduced iron. This method involves several steps, including drying oxidized iron raw materials, mixing them with a reducing material, and using a rotary hearth furnace to generate direct reduced iron.

Career Highlights

Throughout his career, Wataru Nagai has worked with esteemed companies such as Oki Electric Industry Co., Ltd. and Nippon Steel Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking advancements in steel production.

Collaborations

Wataru has collaborated with notable coworkers, including Junichi Suyama and Akihiro Hirota. Their combined expertise has fostered an environment of innovation and creativity in their projects.

Conclusion

Wataru Nagai's contributions to steel technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence advancements in materials science and engineering.

Profile summary based on public USPTO records.