Hideyuki Hatakeyama

This inventor holds 19 USPTO granted patents and 12 published patent applications and 2 EPO patents, primarily in Magnetic Disk Technology. Top assignees: Uacj Corporation, The Furukawa Electric Co., Ltd., Furukawa Electric., Ltd.. Active years: 2020-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hideyuki Hatakeyama. Retrieved from https://idiyas.com/inventor/hideyuki-hatakeyama-4pee8q8u

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

USPTO Granted Patents = 19 (Patent Applications = 12)

% Patents Active = 84.2

EPO Patents = 2 (Patent Applications = 1)

Average Co-Inventor Count = 5.4

ph-index = 1

Forward Citations = 8(Granted Patents)

Company Filing History:

The Furukawa Electric Co., Ltd.

patents

2 out of 59

Furukawa Electric., Ltd.

patents

where one patent can have more than one assignee

Years Active: 2020-2026

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Areas of Expertise:

Magnetic Disk

Aluminum Alloy

Substrate

Manufacturing Method

Impact Resistance

Thin Hard Disk Drive

Base Plate

Production Method

Disk Device

19 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12716117 - Aluminum alloy disc blank for magnetic disc and magnetic disc (2026-08-25),

2. 12573424 - Magnetic disk and substrate for magnetic disk (2026-03-10),

3. 12555602 - Magnetic disk substrate and magnetic disk using magnetic disk substrate (2026-02-17),

4. 12394440 - Magnetic disk device and method for manufacturing magnetic disk device (2025-08-19),

5. 12243570 - Aluminum alloy substrate for magnetic disc and magnetic disc (2025-03-04),

6. 12205616 - Impact resistant magnetic disk device and method for manufacturing impact resistant magnetic disk device (2025-01-21),

7. 12087342 - Aluminum alloy disc blank for magnetic disc and magnetic disc (2024-09-10),

8. 12033665 - Thin substrate built-in hard disk drive and base plate member for thin substrate built-in hard disk drive (2024-07-09),

9. 11935559 - Magnetic disk device (2024-03-19),

10. 11482251 - Aluminum alloy substrate for magnetic disk and method for manufacturing same, aluminum alloy base disk for magnetic disk and method for manufacturing same, and magnetic disk and method for manufacturing the same (2022-10-25),

11. 11423937 - Aluminum alloy substrate for magnetic disk, method for producing the same, and magnetic disk using aluminum alloy substrate for magnetic disk (2022-08-23),

12. 11404082 - Aluminium alloy substrate for magnetic disk, method for fabricating the same, and magnetic disk composed of aluminium alloy substrate for magnetic disk (2022-08-02),

13. 11361791 - Aluminum alloy sheet for magnetic disk and production method therefor, and magnetic disk using said aluminum alloy sheet for magnetic disk (2022-06-14),

14. 11341995 - Aluminum alloy sheet for magnetic disk and production method therefor, and magnetic disk using said aluminum alloy sheet for magnetic disk (2022-05-24),

15. 11270730 - Magnetic disk substrate, method for manufacturing same and magnetic disk (2022-03-08),

Title: Innovations of Hideyuki Hatakeyama

Introduction

Hideyuki Hatakeyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic disk technology, holding a total of 16 patents. His work has been instrumental in advancing the efficiency and functionality of magnetic disk devices.

Latest Patents

Among his latest patents is a magnetic disk device and method for manufacturing such a device. This invention includes a plurality of disk-shaped magnetic disks, spacers, a hub, a clamp, and a fastening member. Each magnetic disk features a through-hole in its center section, while the spacers also contain through-holes and are positioned among the magnetic disks. The hub is designed to be inserted into the through-holes of both the magnetic disks and the spacers. The clamp serves to press and hold the magnetic disks and spacers together, and the fastening member secures the clamp to the hub with a torque ranging from 5 cN·m to 45 cN·m. Another notable patent is for an aluminum alloy substrate for magnetic discs, which is composed of specific mass percentages of various elements, ensuring optimal performance and durability.

Career Highlights

Throughout his career, Hideyuki Hatakeyama has worked with notable companies such as Furukawa Electric Co., Ltd. and UACJ Corporation. His experience in these organizations has allowed him to refine his expertise in magnetic disk technology and contribute to innovative solutions in the industry.

Collaborations

Some of his coworkers include Kotaro Kitawaki and Ryo Sakamoto, who have collaborated with him on various projects, further enhancing the development of magnetic disk technologies.

Conclusion

Hideyuki Hatakeyama's contributions to the field of magnetic disk technology are significant and impactful. His innovative patents and career achievements reflect his dedication to advancing technology in this area.

Profile summary based on public USPTO records.