Shunji Hiwatashi

This inventor holds 13 USPTO granted patents and 1 published patent application, plus 5 CIPO patents and 5 EPO patents. Top assignees: Nippon Steel Sumitomo Metal Corporation, Nippon Steel Corporation. Active years: 1997-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shunji Hiwatashi. Retrieved from https://idiyas.com/inventor/shunji-hiwatashi

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

Calculating rank

USPTO Granted Patents = 13 (Patent Applications = 1)

% Patents Active = 61.5

CIPO Patents = 5

EPO Patents = 5 (Patent Applications = 3)

Average Co-Inventor Count = 4.6

ph-index = 3

Forward Citations = 26(Granted Patents)

Location History:

Futtsu, JP (1997)
Kimitsu, JP (2011 - 2014)
Chiba, JP (2014 - 2015)
Tokyo, JP (2013 - 2019)

Company Filing History:

9 out of 1,102

Nippon Steel Sumitomo Metal Corporation

patents

4 out of 3,721

Nippon Steel Corporation

patents

Years Active: 1997-2026

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12767241 - Automobile body (2026-10-20),

2. 10262086 - Analyzing apparatus, analyzing method, and computer program (2019-04-16),

3. 10106873 - Hot-rolled steel sheet and manufacturing method for same (2018-10-23),

4. 9816904 - Analyzing method of spot welded portion, analyzing program of spot welded portion, recording medium and analyzing apparatus of spot welded portion (2017-11-14),

5. 9777353 - Hot-rolled steel sheet for nitriding, cold-rolled steel sheet for nitriding excellent in fatigue strength, manufacturing method thereof, and automobile part excellent in fatigue strength using the same (2017-10-03),

6. 9767234 - Method of identification of cause and/or location of cause of occurrence of springback (2017-09-19),

7. 8990028 - Fracture prediction method, device, a program arrangement and computer-accessible medium therefor (2015-03-24),

8. 8802241 - Steel sheet having high young's modulus, hot-dip galvanized steel sheet using the same, alloyed hot-dip galvanized steel sheet, steel pipe having high young's modulus, and methods for manufacturing the same (2014-08-12),

9. 8747577 - High yield ratio and high-strength thin steel sheet superior in weldability and ductility, high-yield ratio high-strength hot-dip galvanized thin steel sheet, high-yield ratio high-strength hot-dip galvannealed thin steel sheet, and methods of production of same (2014-06-10),

10. 8606532 - Fracture determination method, fracture determination apparatus, program, and computer readable recording medium (2013-12-10),

11. 8084143 - High-yield-ratio and high-strength thin steel sheet superior in weldability and ductility, high-yield-ratio high-strength hot-dip galvanized thin steel sheet, high-yield ratio high-strength hot-dip galvannealed thin steel sheet, and methods of production of same (2011-12-27),

12. 8057913 - Steel sheet having high young'S modulus, hot-dip galvanized steel sheet using the same, alloyed hot-dip galvanized steel sheet, steel pipe having high young'S modulus and methods for manufacturing the same (2011-11-15),

13. 5618355 - High-strength steel sheet suitable for deep drawing and process for (1997-04-08),

Title: Shunji Hiwatashi: Innovator in Analyzing Apparatus and Hot-Rolled Steel Sheets

Introduction

Shunji Hiwatashi is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the fields of engineering and materials science, holding a total of 13 patents. His innovative work focuses on analyzing apparatuses and the manufacturing of hot-rolled steel sheets.

Latest Patents

One of Hiwatashi's latest patents is an analyzing apparatus that generates first displacement distribution data indicating a displacement distribution of a member caused by springback. This is based on finite element model data, material physical property data, and stress distribution data. The apparatus also generates second displacement distribution data indicating the amount of displacement of the member in various natural vibration deformation modes. It obtains a degree of coincidence between the first and second displacement distribution data, selecting one or more natural vibration deformation modes to determine a modified shape that enhances natural vibrations, bringing the member closer to a target shape.

Another notable patent is for a hot-rolled steel sheet, which includes specific percentages of carbon, silicon, manganese, aluminum, titanium, niobium, phosphorus, sulfur, and nitrogen. The patent outlines a unique manufacturing method that ensures the steel sheet meets stringent quality criteria, including a yield ratio and tensile strength that exceed industry standards.

Career Highlights

Shunji Hiwatashi has worked with leading companies in the steel industry, including Nippon Steel & Sumitomo Metal Corporation and Nippon Steel Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to advancements in steel manufacturing and analysis.

Collaborations

Throughout his career, Hiwatashi has collaborated with notable colleagues such as Naoki Yoshinaga and Manabu Takahashi. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies and patents.

Conclusion

Shunji Hiwatashi's contributions to the fields of analyzing apparatuses and hot-rolled steel sheets demonstrate his innovative spirit and commitment to advancing technology. His work continues to influence the industry and inspire future inventors.

Profile summary based on public USPTO records.