Teruki Hayashida

This inventor holds 12 USPTO granted patents and 2 published patent applications, plus 2 CIPO patents and 2 EPO patents. Top assignee: Nippon Steel Corporation. Active years: 1990-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Teruki Hayashida. Retrieved from https://idiyas.com/inventor/teruki-hayashida

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

Calculating rank

USPTO Granted Patents = 12 (Patent Applications = 2)

% Patents Active = 83.3

CIPO Patents = 2

EPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 4.1

ph-index = 3

Forward Citations = 25(Granted Patents)

Location History:

Hyogo, JP (1990)
Himeji, JP (1990)
Oita, JP (2009 - 2020)
Tokyo, JP (2020 - 2022)

Company Filing History:

12 out of 3,727

Nippon Steel Corporation

patents

Years Active: 1990-2026

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12 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12624434 - Hot-rolled steel sheet (2026-05-12),

2. 12448660 - Hot-rolled steel sheet and method for manufacturing same (2025-10-21),

3. 12442062 - Hot-rolled steel sheet (2025-10-14),

4. 12428694 - Hot-rolled steel sheet and method for manufacturing same (2025-09-30),

5. 11492679 - Hot-rolled steel sheet and method for manufacturing same (2022-11-08),

6. 10718040 - Hot-rolled steel sheet, steel material, and method for producing hot-rolled steel sheet (2020-07-21),

7. 10655192 - Hot-rolled steel sheet (2020-05-19),

8. 7820099 - Hot rolled steel sheet excellent in chemical convertibility and method of production of the same (2010-10-26),

9. 7749338 - High burring, high strength steel sheet excellent in softening resistance of weld heat affected zone and method of production of same (2010-07-06),

10. 7503984 - High-strength thin steel sheet drawable and excellent in shape fixation property and method of producing the same (2009-03-17),

11. 4960158 - Process for producing a zinc-plated steel sheet with an ageing (1990-10-02),

12. 4931107 - Process for producing a cold rolled steel sheet having a good ageing (1990-06-05),

Title: Teruki Hayashida: Innovator in Steel Manufacturing

Introduction

Teruki Hayashida is a prominent inventor based in Oita, Japan. He has made significant contributions to the field of steel manufacturing, holding a total of 12 patents. His work focuses on enhancing the properties and production methods of hot-rolled steel sheets.

Latest Patents

One of his latest patents involves a hot-rolled steel sheet and the method for manufacturing it. This innovation features a specific chemical composition that includes carbon, silicon, manganese, phosphorus, sulfur, aluminum, nitrogen, and nickel. The patent outlines that, among measurement points at which elemental analysis is performed, the percentage of measurement points having a nickel content of 0.5 mass % or more is between 10% to 70%. Additionally, the microstructure of the hot-rolled steel sheet is defined by specific area ratios of martensite, tempered martensite, ferrite, bainite, and pearlite at various depths within the sheet.

Career Highlights

Teruki Hayashida has built a successful career at Nippon Steel Corporation, where he has been instrumental in advancing steel technology. His innovative approaches have not only improved product quality but have also contributed to the efficiency of manufacturing processes.

Collaborations

Throughout his career, Hayashida has collaborated with notable colleagues, including Tatsuo Yokoi and Akifumi Sakakibara. These partnerships have fostered a creative environment that encourages the development of groundbreaking technologies in steel production.

Conclusion

Teruki Hayashida's contributions to the field of steel manufacturing exemplify the impact of innovation on industry standards. His patents and collaborative efforts continue to shape the future of steel technology.

Profile summary based on public USPTO records.