Kazuo Sakai

This inventor holds 21 USPTO granted patents, primarily in Magnetic Recording Technology. Top assignees: Hitachi, Ltd., Hitachi Global Storage Technologies Japan, Ltd.. Active years: 1988-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Sakai. Retrieved from https://idiyas.com/inventor/kazuo-sakai-97z6d5w1

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

Calculating rank

USPTO Granted Patents = 21

% Patents Active = 90.5

Average Co-Inventor Count = 5.9

ph-index = 10

Forward Citations = 330(Granted Patents)

Location History:

Ibaraki, JP (1988 - 1996)
Chiyoda-machi, JP (1998)
Ibaraki-ken, JP (1996 - 2002)
Niihari-gun, JP (2002)
Chiyoda, JP (2003 - 2008)

Company Filing History:

Hitachi Global Storage Technologies Japan, Ltd.

patents

Years Active: 1988-2008

Loading Chart...

Areas of Expertise:

Magnetic Disk Apparatus

Magnetic Tape Device

Information Recording

Pneumatic Guide

Capstanless Driving

Rotary Drum

Chassis Control

Tape Loading Device

Shroud Mechanism

Magnetic Recording

Reproducing Apparatus

Guide Mechanism

21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7330334 - Magnetic disk apparatus with shroud and having open space downstream of moveable arms in communication with bypass channel (2008-02-12),

2. 6898049 - Magnetic disk apparatus with air flow bypass channel (2005-05-24),

3. 6665139 - Magnetic-disc unit with gap between disc and shroud (2003-12-16),

4. 6600626 - Magnetic disk apparatus (2003-07-29),

5. 6490123 - Disc drive having 3.5 inch form factor housing and 2.5 inch form factor disk media (2002-12-03),

6. 6369978 - Magnetic disk apparatus with shroud having opening downstream of moveable arm (2002-04-09),

7. 6008963 - Magnetic recording having a slidable chassis (1999-12-28),

8. 5923494 - Magnetic tape device and method of controlling magnetic tape device (1999-07-13),

9. 5754361 - Information recording and/or reproducing apparatus having a tape (1998-05-19),

10. 5739976 - Magnetic recording and reproducing apparatus (1998-04-14),

11. 5720442 - Capstanless tape driving method and information recording and (1998-02-24),

12. 5570831 - Pneumatic static guide for a tape (1996-11-05),

13. 5537266 - Tape loading device and magnetic conversion apparatus (1996-07-16),

14. 5497280 - Cassette holder mechanism for magnetic recording/reproducing apparatus (1996-03-05),

15. 5495371 - Magnetic tape library device and method for maintaining magnetic (1996-02-27),

Title: The Innovative Journey of Kazuo Sakai

Introduction: Kazuo Sakai, a pioneering inventor hailing from Ibaraki, Japan, has made significant contributions to the field of technology through his groundbreaking inventions and patents.

Latest Patents: Kazuo Sakai holds several recent patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous commitment to innovation.

Career Highlights: With a career spanning over two decades, Kazuo Sakai has worked tirelessly to develop cutting-edge solutions that have revolutionized various industries. His inventions have not only improved efficiency but have also had a positive impact on sustainability efforts worldwide.

Collaborations: Throughout his career, Kazuo Sakai has collaborated with leading research institutions, universities, and tech companies to further advance his inventions. These collaborations have led to the successful implementation of his innovative ideas on a global scale.

Conclusion: In conclusion, Kazuo Sakai's passion for innovation and his dedication to pushing the boundaries of technology have solidified his position as a respected inventor in the industry. His work continues to inspire future generations of inventors to think outside the box and create solutions that shape the world we live in.

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]