Naoto Yoshimi

This inventor holds 18 USPTO granted patents and 3 published patent applications, plus 3 CIPO patents and 7 EPO patents, primarily in Steel Sheet Manufacturing. Top assignees: Jfe Steel Corporation, Nkk Corporation, Kansai Paint Company, Ltd.. Active years: 1995-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoto Yoshimi. Retrieved from https://idiyas.com/inventor/naoto-yoshimi

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

Calculating rank

USPTO Granted Patents = 18 (Patent Applications = 3)

% Patents Active = 83.3

CIPO Patents = 3

EPO Patents = 7 (Patent Applications = 6)

Average Co-Inventor Count = 5.9

ph-index = 4

Forward Citations = 130(Granted Patents)

Location History:

Fukuyama, JP (2003)
Chiba, JP (2009 - 2011)
Hiroshima, JP (2012 - 2014)
Tokyo, JP (1995 - 2015)
Kawasaki, JP (2014 - 2015)

Company Filing History:

10 out of 1,974

Jfe Steel Corporation

Kansai Paint Company, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1995-2015

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Areas of Expertise:

Zinc-Based Metal Plating

High-Strength Steel Sheet

Cold-Rolled Steel

Chemical Conversion Properties

Corrosion Resistance

Surface Treatment

Hot Dip Galvannealed

Press Formability

Weldable Steel Sheet

Phosphatability

White Rust Resistance

Organic Composite Coating

18 patents (USPTO):Sort by Forward CitationsExplore Patents

1. RE45821 - Zinc-based metal plated steel sheet (2015-12-21),

2. 9090952 - High-strength cold-rolled steel sheet and method for producing the same (2015-07-28),

3. 8911574 - Method for manufacturing high-Si cold rolled steel sheet having excellent chemical conversion properties (2014-12-16),

4. 8668789 - Method for manufacturing of high strength cold rolled steel sheet of excellent phosphatability (2014-03-11),

5. 8623514 - Zinc-based metal plated steel sheet (2014-01-07),

6. 8268095 - Method of manufacturing hot dip galvannealed steel sheet and hot dip galvannealed steel sheet (2012-09-18),

7. 8221900 - Zinc-based metal plated steel sheet (2012-07-17),

8. 8012599 - Surface-treated steel sheet with excellent corrosion resistance and method for manufacturing same (2011-09-06),

9. 7517591 - Highly corrosion-resistant surface-treated steel sheet and method for producing same (2009-04-14),

10. 7291402 - Surface-treated steel sheets of good white rust resistance, and method for producing them (2007-11-06),

11. 6562474 - Coated steel sheet having excellent corrosion resistance and method for producing the same (2003-05-13),

12. 6015628 - Organic composite coated steel sheet with good press formability and (2000-01-18),

13. 5795660 - Organic composite coated steel sheet having a high corrosion resistance (1998-08-18),

14. 5641578 - Weldable black steel sheet (1997-06-24),

15. 5609968 - Weldable colored steel sheet (1997-03-11),

Title: Naoto Yoshimi: Innovator in Steel Technology

Introduction

Naoto Yoshimi is a prominent inventor based in Kawasaki, Japan, known for his significant contributions to the field of steel technology. With a total of 18 patents to his name, he has made remarkable advancements in the properties and production methods of steel sheets.

Latest Patents

Yoshimi's latest patents include a zinc-based metal plated steel sheet, which exhibits excellent tribological properties during press forming. This innovation features an oxide layer containing crystalline 3Zn(OH)·ZnSO·xHO, with a thickness of 10 nm or more. Additionally, he has developed a high-strength cold-rolled steel sheet that boasts a tensile strength of 590 MPa or more. This steel sheet is composed of specific percentages of various elements, including carbon, silicon, manganese, and aluminum, ensuring high chemical convertibility. The production method involves an oxidation treatment followed by annealing in a controlled gas atmosphere.

Career Highlights

Throughout his career, Naoto Yoshimi has worked with notable companies such as JFE Steel Corporation and NKK Corporation. His expertise in steel technology has led to significant advancements in the industry, particularly in the development of high-performance steel products.

Collaborations

Yoshimi has collaborated with esteemed colleagues, including Masaaki Yamashita and Tatsuya Miyoshi, contributing to various innovative projects in the field of steel technology.

Conclusion

Naoto Yoshimi's contributions to steel technology through his patents and collaborations have established him as a key figure in the industry. His work continues to influence advancements in material science and engineering.

Profile summary based on public USPTO records.