logo

For the Inventor, By the Inventor

Tokyo, Japan

Hiroshi Koriyama

This inventor holds 11 USPTO granted patents. Top assignee: Nec Corporation. Active years: 1991-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Koriyama. Retrieved from https://idiyas.com/inventor/hiroshi-koriyama

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 1.2

ph-index = 5

Forward Citations = 76(Granted Patents)


Company Filing History:

goldMedal11 out of 36,684 
 
Nec Corporation
 patents

Years Active: 1991-2001

Loading Chart...
11 patents (USPTO):Explore Patents
1. 6212030 - Magnetic disk drive having means for reducing disk deformation (2001-04-03),
2. 5901020 - Magnetic disk drive (1999-05-04),
3. 5805385 - Magnetic disk device (1998-09-08),
4. 5745326 - Magnetic disk drive (1998-04-28),
5. 5701220 - Magnetic disk drive (1997-12-23),
6. 5629820 - Structure for supporting head suspension of actuator of magnetic disk (1997-05-13),
7. 5624584 - Process for reducing disk deformation of holder arm of data recording (1997-04-29),
8. 5523912 - Magnetic head positioner for magnetic disk apparatus which can prevent (1996-06-04),
9. 5469316 - Actuator for magnetic disks and having a VCM support with a recess (1995-11-21),
10. 5463515 - Magnetic head supporting structure with a bearing fixed to a radially (1995-10-31),
11. 4988903 - Coil assembly for voice coil motor (1991-01-29),

Title: Hiroshi Koriyama: Innovator in Magnetic Disk Drive Technology

Introduction

Hiroshi Koriyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic disk drive technology, holding a total of 11 patents. His innovative designs have improved the efficiency and functionality of disk drives, making them more reliable and effective.

Latest Patents

Koriyama's latest patents include a magnetic disk drive that features a clamping structure designed to reduce disk deformation. This invention involves a spindle hub with a flange that has a protruding portion, allowing disks to be stacked securely. Additionally, he has developed a method for contouring the tip of a holder arm using a wire cutting technique, which enhances the precision of the disk drive components. Another notable patent focuses on minimizing the tension caused by flexible printed circuits (FPC) in magnetic disk drives, ensuring smoother operation as the carriage seeks different areas of the disk.

Career Highlights

Hiroshi Koriyama is currently employed at NEC Corporation, where he continues to innovate and develop advanced technologies in the field of magnetic storage. His work has been instrumental in pushing the boundaries of what is possible in disk drive design and functionality.

Collaborations

Throughout his career, Koriyama has collaborated with talented individuals such as Takahiro Suzuki and Misa Iwamoto. These partnerships have fostered a creative environment that has led to groundbreaking advancements in their field.

Conclusion

Hiroshi Koriyama's contributions to magnetic disk drive technology have established him as a key figure in the industry. His innovative patents and collaborative efforts continue to shape the future of data storage solutions.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Loading…