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For the Inventor, By the Inventor

Kawasaki, Japan

Yoshiaki Nagasawa

This inventor holds 9 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1996-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiaki Nagasawa. Retrieved from https://idiyas.com/inventor/yoshiaki-nagasawa

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

USPTO Granted Patents = 9

% Patents Active = 88.9

Average Co-Inventor Count = 5.8

ph-index = 6

Forward Citations = 83(Granted Patents)


Location History:

  • Kanagawa, JP (1999)
  • Kawasaki, JP (1996 - 2009)

Company Filing History:

goldMedal9 out of 39,378 
 
Fujitsu Corporation
 patents

Years Active: 1996-2009

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9 patents (USPTO):Explore Patents
1. 7599150 - Head stack assembly, its manufacturing method, and magnetic disc drive having the same (2009-10-06),
2. 6021025 - Disk apparatus having an actuator for moving heads (2000-02-01),
3. 5886851 - Frame structure of a disk drive for improved heat dissipation and a disk (1999-03-23),
4. 5859746 - Magnetic disk drive and flexible printed board used in such drive (1999-01-12),
5. 5764435 - Breather filter unit for magnetic disk drive (1998-06-09),
6. 5602701 - Head actuator for magnetic disk drive unit (1997-02-11),
7. 5590001 - Breather filter unit for magnetic disk drive (1996-12-31),
8. 5583720 - Magnetic disk drive and flexible printed board used in such drive (1996-12-10),
9. 5541788 - Magnetic disk drive and flexible printed circuit board (1996-07-30),

Title: **Yoshiaki Nagasawa: A Pioneer in Head Stack Assembly Innovations**

Introduction

Yoshiaki Nagasawa is a renowned inventor based in Kawasaki, Japan, known for his contributions to disk drive technology. With a total of 9 patents to his name, Nagasawa has significantly impacted the manufacturing processes and functionality of data storage devices. His work at Fujitsu Corporation reflects a commitment to advancing technology in the field.

Latest Patents

Nagasawa's latest patents showcase innovative methods and designs for improving disk drives. One of his notable inventions is a "Head stack assembly, its manufacturing method, and magnetic disc drive having the same." This invention involves a method for creating a head stack assembly with specialized suspensions and an arm, aiming for enhanced performance and reliability. His other patent, "Disk apparatus having an actuator for moving heads," describes an actuator designed to allow for compact and efficient movement of read/write heads in disk units, highlighting his expertise in creating practical and cost-effective technological solutions.

Career Highlights

Throughout his career at Fujitsu Corporation, Nagasawa has played a pivotal role in developing technologies that streamline disk drive manufacturing and improve the efficiency of data retrieval. His extensive work in the field reflects not only a mastery of engineering principles but also a foresight in anticipating industry needs.

Collaborations

Nagasawa's journey as an inventor has been marked by valuable collaborations with colleagues, including Katsuaki Ishida and Tomoo Sukagawa. Together, they have contributed to the innovation landscape within their company, pushing the boundaries of what's possible in data storage technology.

Conclusion

Yoshiaki Nagasawa stands out as a key inventor in the area of disk drive technology. His numerous patents and collaborative efforts at Fujitsu Corporation continue to pave the way for advancements in the industry, showcasing the importance of innovation in enhancing the capabilities of data storage solutions. His contributions are a testament to the significant role inventors play in shaping the future of technology.

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]
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