Company Filing History:

10 out of 42,485

Hitachi, Ltd.

patents

1 out of 227

Hitachi Global Storage Technologies Japan, Ltd.

patents

Years Active: 1981-2006

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11 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7050253 - Magnetic recording media and magnetic storage apparatus using the same (2006-05-23),

2. 6574060 - Magnetic storage apparatus (2003-06-03),

3. 6221508 - Magnetic recording media (2001-04-24),

4. 6033792 - Soft magnetic thin film, and magnetic head and magnetic recording device (2000-03-07),

5. 5962153 - Soft magnetic thin film, and magnetic head and magnetic recording (1999-10-05),

6. 5873955 - Soft magnetic thin film, and magnetic head and magnetic recording device (1999-02-23),

7. 5858548 - Soft magnetic thin film, and magnetic head and magnetic recording device (1999-01-12),

8. 5290629 - Magnetic film having a magnetic phase with crystallites of 200 A or less (1994-03-01),

9. 4460412 - Method of making magnetic bubble memory device by implanting hydrogen (1984-07-17),

10. 4288283 - Method of forming a microscopic pattern (1981-09-08),

11. 4262054 - Magnetic bubble memory device (1981-04-14),

Title: Nagatugu Koiso: Innovator in Magnetic Storage Technologies

Introduction

Nagatugu Koiso, a prominent inventor based in Tama, Japan, has made significant contributions to the field of magnetic storage technologies, holding a remarkable total of 11 patents. His innovative work has laid the foundation for advancements in data storage solutions, impacting both consumer and enterprise storage systems.

Latest Patents

Koiso's latest patents include groundbreaking inventions related to magnetic recording media and magnetic storage apparatuses. His patented designs encompass a magnetic storage apparatus featuring a magnetic recording medium, a drive unit that facilitates movement in a specified recording direction, and an advanced magnetic head assembly. This assembly includes both a recording and reproduction section, utilizing a magnetic head of the magnetoresistance effect type. Notably, the magnetic recording medium consists of a substrate and a magnetic layer, with several underlayers between which at least one specific layer is made of amorphous or microcrystalline materials containing nickel as a principal component, along with elements selected from niobium and tantalum.

Career Highlights

Throughout his career, Nagatugu Koiso has worked with esteemed companies such as Hitachi and Hitachi Global Storage Technologies Japan. His tenure at these organizations allowed him to explore and implement advanced technology in magnetic recording, leading to significant enhancements in data storage methods and performance.

Collaborations

Koiso has collaborated with esteemed colleagues in his field, including Fumiyoshi Kirino and Tetsuya Kanbe. These partnerships have further enriched his innovative endeavors and contributed to the development of cutting-edge technologies.

Conclusion

Nagatugu Koiso's contributions to magnetic storage technology through his numerous patents showcase his dedication to innovation and excellence. As the technological landscape continues to evolve, his work remains a pivotal element in the advancement of data storage solutions.

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