logo

For the Inventor, By the Inventor

Chiba, Japan

Takashi Obara

This inventor holds 26 USPTO granted patents, primarily in Cold Rolled Steel. Top assignee: Kawasaki Steel Corporation. Active years: 1985-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Obara. Retrieved from https://idiyas.com/inventor/takashi-obara

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

Calculating rank
USPTO Granted Patents = 26

% Patents Active = 100.0

Average Co-Inventor Count = 4.6

ph-index = 7

Forward Citations = 138(Granted Patents)


Location History:

  • Okayama, JP (1997 - 1999)
  • Chiba, JP (1985 - 2001)

Company Filing History:

goldMedal26 out of 1,256 
 
Kawasaki Steel Corporation
 patents

Years Active: 1985-2001

Loading Chart...
Areas of Expertise:
Deep Drawability
Impact Resistance
Electromagnetic Steel
Thin Steel Sheet
High-Strength Steel
Aging Resistance
Press Formability
Spot Weldability
Production Method
Non-Oriented Steel
Silicon Steel
Dual-Phase Structure
26 patents (USPTO):Explore Patents
1. 6217680 - Thick cold rolled steel sheet excellent in deep drawability and method of manufacturing the same (2001-04-17),
2. 6210496 - High-strength high-workability cold rolled steel sheet having excellent impact resistance (2001-04-03),
3. 6171412 - Coated seizure-hardening type cold-rolled steel sheet having excellent aging resistance and method of production thereof (2001-01-09),
4. 6103394 - Thin steel sheet having excellent rectangular drawability and production (2000-08-15),
5. 6027581 - Cold rolled steel sheet and method of making (2000-02-22),
6. 5942051 - Non-oriented electromagnetic steel sheet with low iron loss after stress (1999-08-24),
7. 5853503 - Hot rolled steel sheets and method of producing the same (1998-12-29),
8. 5730810 - Non-oriented electromagnetic steel sheet with low iron loss after stress (1998-03-24),
9. 5676771 - Non-oriented silicon steel sheet and method (1997-10-14),
10. 5676770 - Low leakage flux, non-oriented electromagnetic steel sheet, and core and (1997-10-14),
11. 5639315 - Process for producing non-oriented electromagnetic steel strip capable (1997-06-17),
12. 5413640 - Method of producing non-oriented electromagnetic steel strip having (1995-05-09),
13. 5296050 - Method of producing grain oriented silicon steel sheets having improved (1994-03-22),
14. 5089068 - Cold rolled steel sheets having improved spot weldability (1992-02-18),
15. 4889566 - Method for producing cold rolled steel sheets having improved spot (1989-12-26),

Title: The Innovative Contributions of Takashi Obara in Steel Manufacturing

Introduction

Takashi Obara, a prominent inventor based in Chiba, Japan, has made significant strides in the field of steel manufacturing. With a total of 26 patents to his name, Obara showcases a remarkable dedication to enhancing the properties and applications of cold rolled steel sheets, particularly in the automotive industry.

Latest Patents

Among his latest patents, Obara has developed materials that demonstrate exceptional properties. One noteworthy patent is for a thick cold rolled steel sheet that excels in deep drawability. Another of his innovations is in creating a high-strength, high-workability cold rolled steel sheet that possesses excellent impact resistance. His research includes a formulation of various elements such as carbon, silicon, manganese, chromium, phosphorus, and aluminum, which combine to enhance the steel's structural integrity. Notably, this steel sheet features a ferrite major phase complemented by martensite, acicular ferrite, and retained austenite, making it suitable for demanding applications in automobiles.

Career Highlights

Takashi Obara's career is marked by his affiliation with Kawasaki Steel Corporation, where he has played a crucial role in advancing metal technology. His commitment to innovation has not only paved the way for newer materials but has also contributed to the competitive edge of the steel production methods employed by the corporation.

Collaborations

Throughout his career, Obara has collaborated with notable colleagues such as Kozo Tsunoyama and Susumu Satoh. These partnerships have fostered a productive environment for innovative thinking and have resulted in numerous patents that push the boundaries of materials science within the steel industry.

Conclusion

Takashi Obara's contributions to the field of steel manufacturing illustrate the importance of ongoing innovation in material science. His prolific patent portfolio reflects his expertise and commitment to improving cold rolled steel, significantly impacting the automotive industry and setting new benchmarks for future developments in this area.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…