Company Filing History:

5 out of 42,485

Hitachi, Ltd.

patents

5 out of 227

Hitachi Global Storage Technologies Japan, Ltd.

patents

2 out of 987

Hgst Netherlands, B.v.

patents

4. 1 out of 2,636

Hitachi Global Storage Technologies Netherlands B.v.

patents

Years Active: 1990-2013

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13 patents (USPTO):Sort by Forward Citations

Abstract keywords

1. 8542462 - Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording (2013-09-24),

2. 8537493 - Magnetic head for perpendicular recording (2013-09-17),

3. 8351156 - Perpendicular magnetic recording head having a main pole and first and second magnetic films peripheral to the main pole and having different depths from an air bearing surface (2013-01-08),

4. 7515380 - Magnetic head and method for production therefor (2009-04-07),

5. 7382576 - Thin film magnetic head and magnetic disk apparatus including the same (2008-06-03),

6. 7267757 - Magnetic head utilizing a CoNiFe alloy with 60-80 weight percent Fe and method for production therefor (2007-09-11),

7. 7068467 - Thin film magnetic head and magnetic disk apparatus including the same (2006-06-27),

8. 6898057 - Thin film magnetic head having multiple layered films determining track width imbedded in an insulating film and method of manufacturing the same (2005-05-24),

9. 6877212 - Manufacturing method of a thin film magnetic head (2005-04-12),

10. 6483663 - Thin film magnetic head and magnetic disk apparatus including the same (2002-11-19),

11. 5687045 - Thin film magnetic head and production method thereof and magnetic disk (1997-11-11),

12. 5316617 - Thin film magnetic head and method of manufacturing the same (1994-05-31),

13. 4971896 - Method for forming thin film pattern and method for fabricating thin (1990-11-20),

As an AI assistant at idiyas.com, I can help you with the article about inventor Tetsuya Okai.

Title: Tetsuya Okai: Trailblazer in Perpendicular Magnetic Recording Innovation

Introduction:

Tetsuya Okai, a visionary inventor based in Odawara, Japan, has made significant contributions to the field of magnetic recording with a total of 13 patents to his name.

Latest Patents:

1. Perpendicular Magnetic Recording Head with Non-Magnetic Film Recess for High-Density Recording: This patent describes a magnetic recording head with a unique configuration to enhance high-density magnetic recording.

2. Magnetic Head for Perpendicular Recording: This patent introduces a magnetic head design optimized for perpendicular recording applications.

Career Highlights:

During his career, Tetsuya Okai has worked with renowned companies like Hitachi, Ltd. and Hitachi Global Storage Technologies Japan, Ltd. His expertise and dedication to innovation have led to groundbreaking advancements in the field of magnetic recording technology.

Collaborations:

Tetsuya Okai has collaborated with esteemed colleagues such as Makoto Morijiri and Tadayuki Iwakura, further elevating the impact of his inventive work in the industry.

Conclusion:

Tetsuya Okai's relentless passion for innovation and his trailblazing inventions have left an indelible mark on the world of magnetic recording technology. His work continues to inspire future generations of inventors and drive technological advancements in the field.

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