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Read-Rite Smi Corporation

USPTO Granted Patents = 15

Forward Citations = 1,842

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28 inventors (with patents filed for the assignee):

Kenji Komaki (4 out of 5 patents)

Fuminori Hikami (3 out of 9 patents)

Hirohiko Kamimura (3 out of 3 patents)

4. Naoto Matono (3 out of 3 patents)

5. Tomihito Miyazaki (2 out of 14 patents)

6. Daisuke Iitsuka (2 out of 5 patents)

7. Tatsuya Shiromoto (2 out of 2 patents)

8. Shin-ichi Akoh (2 out of 2 patents)

9. Masayuki Takagishi (2 out of 3 patents)

10. Koichi Suzuki (1 out of 5 patents)

11. Hideaki Yamanaka (1 out of 2 patents)

12. Kesami Saito (1 out of 2 patents)

13. Koki Takanashi (1 out of 3 patents)

14. Hiroyasu Fujimori (1 out of 2 patents)

15. Masaki Ueno (1 out of 5 patents)

15 patents: Sort by Forward Citations

1. 6791807 - Spin-valve magnetic transducing element and magnetic head having free layer with negative magnetostriction (2004-09-14),

2. 6729015 - Method of manufacturing a magnetic head device (2004-05-04),

3. 6661621 - Compound thin film magnetic head (2003-12-09),

4. 6636394 - Spin-valve magnetic resistance sensor and thin-film magnetic head (2003-10-21),

5. 6629357 - Method of magnetic head manufacture (2003-10-07),

6. 6597548 - Magnetoresistive element and magnetic head (2003-07-22),

7. 6535363 - Magnetic resistance effect type thin-film magnetic head and method for manufacturing the same (2003-03-18),

8. 6477019 - Thin film magnetic head including nonmagnetic and magnetic layers with similar milling rates (2002-11-05),

9. 6430009 - Magnetic head shield pole with nonmagnetic separation film between transition portion and shield portion (2002-08-06),

10. 6125018 - Composite type thin-film magnetic head (2000-09-26),

11. 6033532 - Oxide film fabrication method and electronic device (2000-03-07),

12. 6025978 - Composite type thin-film magnetic head with improved recording (2000-02-15),

13. 5969911 - Inductive/MR composite type thin-film magnetic head (1999-10-19),

14. 5935403 - Magnetic thin film and magnetic thin film manufacturing method (1999-08-10),

15. 5764454 - Thin-film magnetic head with improved bonding characteristics and (1998-06-09),

Company Overview

Read-Rite SMI Corporation, based in Osaka, Japan, specializes in the development and manufacturing of advanced magnetic recording technologies. The company focuses on providing innovative solutions for data storage and retrieval, catering to the evolving needs of the electronics industry. With a strong emphasis on research and development, Read-Rite SMI is dedicated to enhancing performance and efficiency in magnetic media applications, positioning itself as a key player in the global market for high-density data storage solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

15 Patents

#371 in Osaka

#3,447 in Japan

#39,959 in the World

Read-Rite Smi Corporation

Forward Citations = 1,842

28 inventors:

Kenji Komaki (4 out of 5 patents)

Fuminori Hikami (3 out of 9 patents)

Hirohiko Kamimura (3 out of 3 patents)

4. Naoto Matono (3 out of 3 patents)

5. Tomihito Miyazaki (2 out of 14 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Read-Rite Smi Corporation. Retrieved from https://idiyas.com/company/read-rite-smi

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

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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