Mitsuharu Yonemura

This inventor holds 10 USPTO granted patents and 4 published patent applications, plus 6 CIPO patents and 3 EPO patents. Top assignees: Nippon Steel Sumitomo Metal Corporation, Nippon Steel Chemical & Material Co., Ltd., Nippon Steel Corporation. Active years: 2003-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Mitsuharu Yonemura. Retrieved from https://idiyas.com/inventor/mitsuharu-yonemura

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

USPTO Granted Patents = 10 (Patent Applications = 4)

% Patents Active = 80.0

CIPO Patents = 6

EPO Patents = 3 (Patent Applications = 6)

Average Co-Inventor Count = 4.0

ph-index = 2

Forward Citations = 42(Granted Patents)

Location History:

Amagasaki, JP (2003)
Osaka, JP (2018)
Takarazuka, JP (2012 - 2019)
Tokyo, JP (2018 - 2024)

Company Filing History:

4 out of 1,102

Nippon Steel Sumitomo Metal Corporation

patents

2 out of 122

Nippon Steel Chemical & Material Co., Ltd.

patents

1 out of 3,721

Nippon Steel Corporation

Sumitomo Metal Industries, Inc.

patents

6. 1 out of 834,570

Other

patents

Years Active: 2003-2025

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10 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12428699 - Austenitic stainless steel foil (2025-09-30),

2. 12037673 - Metal mask material, method for manufacturing same, and metal mask (2024-07-16),

3. 10497497 - R-T-B—Ga-based magnet material alloy and method of producing the same (2019-12-03),

4. 10381640 - Negative electrode active material (2019-08-13),

5. 10106870 - Copper alloy and process for producing the same (2018-10-23),

6. 10023940 - Copper alloy and process for producing the same (2018-07-17),

7. 9859026 - Austenitic alloy tube (2018-01-02),

8. 9612008 - Austenitic stainless steel tube (2017-04-04),

9. 8241439 - Ni-Cr alloy material (2012-08-14),

10. 6576369 - Graphite powder suitable for negative electrode material of lithium ion secondary batteries (2003-06-10),

Title: Mitsuharu Yonemura: Innovator in Stainless Steel and Metal Mask Technologies

Introduction

Mitsuharu Yonemura is a prominent inventor based in Takarazuka, Japan. He has made significant contributions to the field of materials science, particularly in the development of stainless steel and metal mask technologies. With a total of 10 patents to his name, his work has had a considerable impact on various industries.

Latest Patents

One of his latest patents is for an austenitic stainless steel foil. This innovative foil consists of specific mass percentages of various elements, including carbon, chromium, and nickel, among others. The unique composition allows for enhanced performance in various applications. Another notable patent involves a metal mask material designed for OLED use. This material is engineered to reduce warpage during etching processes, ensuring higher precision and quality in manufacturing.

Career Highlights

Mitsuharu Yonemura has worked with reputable companies such as Nippon Steel & Sumitomo Metal Corporation and Nippon Steel Chemical & Material Co., Ltd. His experience in these organizations has allowed him to refine his expertise and contribute to groundbreaking advancements in material technologies.

Collaborations

Throughout his career, Yonemura has collaborated with talented individuals, including Noriyuki Negi and Koji Moriguchi. These partnerships have fostered innovation and have been instrumental in the development of his patented technologies.

Conclusion

Mitsuharu Yonemura's contributions to the fields of stainless steel and metal mask technologies highlight his role as a leading inventor. His patents reflect a commitment to innovation and excellence in material science.

Profile summary based on public USPTO records.