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For the Inventor, By the Inventor

Kanagawa, Japan

Yokuo Saitoh

USPTO Granted Patents = 19

Average Co-Inventor Count = 8.2

ph-index = 11

Forward Citations = 291(Granted Patents)


Location History:

  • Ashigarakami, JP (1992)
  • Kaiseimachi, JP (1992)
  • Kaisei, JP (1993)
  • Kanagawa, JP (1986 - 1995)
  • Kanagawa-ken, JP (1997)

Company Filing History:

goldMedal19 out of 42,508 
 
Hitachi, Ltd.
 patents

Years Active: 1986-1997

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19 patents (USPTO):Explore Patents
1. 5671107 - Large capacity magnetic disc apparatus with a particular relationship (1997-09-23),
2. 5430591 - Negative pressure flying head slider having siderails with narrow width (1995-07-04),
3. 5383073 - Magnetic head supporting apparatus having a fulcrum point of load (1995-01-17),
4. 5296979 - Magnetic disc apparatus with thin film head suitable for high-density (1994-03-22),
5. 5245493 - Magnetic information storage apparatus including magnetic head and (1993-09-14),
6. 5245489 - Guide arm with a fixed printed circuit board for magnetic disk drive (1993-09-14),
7. 5140482 - Guide arm with affixed printed circuit board for magnetic disk drive (1992-08-18),
8. 5109311 - Magnetic disk device and method of recording/retrieving information (1992-04-28),
9. 5079662 - Compound magnetic head having a recording head and a reproducing (1992-01-07),
10. 5060098 - Magnetic recorder provided with a magnetic head slider having a (1991-10-22),
11. 5060097 - Magnetic disc file including a slider which exhibits reduced deformation (1991-10-22),
12. 5051856 - Thin film magnetic head with mixed crystal structures (1991-09-24),
13. 5014144 - Magnetic head slider supporting apparatus (1991-05-07),
14. 4922356 - Transducer supporting apparatus and disk storage unit (1990-05-01),
15. 4884154 - Flanged transducer supporting arm for a magnetic head/arm assembly (1989-11-28),

Title: **Yokuo Saitoh: A Pioneer in Magnetic Disc Technology**

Introduction

Yokuo Saitoh, residing in Kanagawa, Japan, is an accomplished inventor known for his contributions to magnetic disc technology. With a remarkable total of 19 patents to his name, Saitoh has significantly impacted the fields of data storage and recording media.

Latest Patents

Saitoh's recent innovations include two notable patents. The first is a **Large Capacity Magnetic Disc Apparatus** which boasts a recording density of 120 megabits per square inch or more. This invention establishes critical relationships among various technical specifications such as pole thickness and saturation flux density, optimizing performance for thin-film magnetic discs with high coercivity.

The second patent, **Negative Pressure Flying Head Slider Having Siderails with Narrow Width**, details a unique design for a flying head slider that utilizes a negative pressure mechanism. This invention features a sophisticated air bearing surface designed for precision and efficiency, utilizing a carefully structured arrangement of side rails and center rails that contribute to improved performance in recording technologies.

Career Highlights

Yuko Saitoh has been an integral part of Hitachi, Ltd., where he collaborates with other notable inventors like Yuzo Yamaguchi and Kihachiro Tanaka. His work at Hitachi has positioned the company as a leader in innovative data storage solutions, furthering both Saitoh's career and the organization's reputation in technology development.

Collaborations

Saitoh's collaborative efforts with fellow inventors such as Yuzo Yamaguchi and Kihachiro Tanaka have played a vital role in advancing their mutual projects. Their combined expertise in engineering and design has yielded several groundbreaking inventions in the realm of magnetic disc technology.

Conclusion

Yokuo Saitoh's contributions to the field of magnetic disc technology through his 19 patents exemplify his innovative spirit. His latest patents not only reflect his technical prowess but also signify advancements in recording media that continue to influence the industry. As part of Hitachi, Ltd., Saitoh remains a pivotal figure in the pursuit of excellence in data storage solutions.

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