Company Filing History:

13 out of 1,256

Kawasaki Steel Corporation

patents

2 out of 2,630

The Furukawa Electric Co., Ltd.

patents

1 out of 131

Toyota Motor Corporation

patents

4. 1 out of 35

Furukawa Aluminum Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1981-1997

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 5674627 - Aluminum alloy sheet having excellent press formability and spot (1997-10-07),

2. 5486243 - Method of producing an aluminum alloy sheet excelling in formability (1996-01-23),

3. 5322741 - Aluminum alloy sheet with improved formability and method of production (1994-06-21),

4. 5127966 - Method of producing hot-dip galvannealed steel sheet free of Ti (1992-07-07),

5. 5076549 - Continuous dip-plating apparatus for steel strip (1991-12-31),

6. 5074934 - Flexible hot rolled steel sheets having improved deep drawability (1991-12-24),

7. 4974424 - Method and system for cooling strip (1990-12-04),

8. 4931106 - Hot rolled steel sheet having high resistances against secondary-work (1990-06-05),

9. 4857117 - Method of manufacturing a cold-rolled steel sheet having a good deep (1989-08-15),

10. 4830686 - Low yield ratio high-strength annealed steel sheet having good ductility (1989-05-16),

11. 4770719 - Method of manufacturing a low yield ratio high-strength steel sheet (1988-09-13),

12. 4709557 - Method and system for cooling strip (1987-12-01),

13. 4292097 - High tensile strength steel sheets having high press-formability and a (1981-09-29),

Title: Koichi Hashiguchi: Innovator in Aluminum Alloy Technology

Introduction

Koichi Hashiguchi is a prominent inventor based in Chiba, Japan, known for his significant contributions to the field of aluminum alloy technology. With a total of 13 patents to his name, Hashiguchi has developed innovative solutions that enhance the performance and usability of aluminum materials, particularly in automotive applications.

Latest Patents

Hashiguchi's latest patents include an aluminum alloy sheet that boasts excellent press formability and spot weldability. This invention features a chromate film formed as a first layer on the aluminum alloy sheet, with a specific thickness and composition that enhances its properties. Additionally, he has developed a method for producing aluminum alloy sheets that excel in formability, involving a detailed process of material preparation and treatment to achieve optimal tensile strength and surface characteristics.

Career Highlights

Throughout his career, Hashiguchi has worked with notable companies such as Kawasaki Steel Corporation and The Furukawa Electric Co., Ltd. His experience in these organizations has allowed him to refine his expertise in aluminum alloys and contribute to advancements in the industry.

Collaborations

Hashiguchi has collaborated with esteemed colleagues, including Akio Tosaka and Yoshihiro Matsumoto, to further his research and development efforts in aluminum technology.

Conclusion

Koichi Hashiguchi's innovative work in aluminum alloy technology has made a significant impact on the automotive industry. His patents reflect a commitment to enhancing material performance and usability, solidifying his reputation as a leading inventor in this field.

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