For the Inventor, By the Inventor

Enter assignee name

Irvine, CA, United States of America

Wd Media (Singapore) Pte. Ltd.

USPTO Granted Patents = 73

Forward Citations = 2,652

Loading Chart...

Loading Chart...

41 inventors (with patents filed for the assignee):

Teiichiro Umezawa (16 out of 30 patents)

Takahiro Onoue (16 out of 27 patents)

Yoshiaki Sonobe (14 out of 16 patents)

4. Tokichiro Sato (13 out of 13 patents)

5. Koichi Shimokawa (11 out of 18 patents)

6. Masafumi Ishiyama (10 out of 22 patents)

7. Takenori Kajiwara (9 out of 18 patents)

8. Katsushi Hamakubo (9 out of 17 patents)

9. Kenji Ayama (8 out of 11 patents)

10. Kae Itoh (7 out of 9 patents)

11. Kong Kim (6 out of 8 patents)

12. Junichi Horikawa (4 out of 23 patents)

13. Akira Shimada (4 out of 61 patents)

14. Kazuaki Sakamoto (4 out of 8 patents)

15. Junichi Yasumori (4 out of 4 patents)

Core Competencies:

Perpendicular Magnetic Recording

Magnetic Disk

Manufacturing Method

Magnetic Recording Medium

Lubricant Compound

Vertical Magnetic Recording

Thermally Assisted Magnetic Recording

Exchange Coupling Layer

Guard Layer

Single Write Magnetic Disc

Controlled Grain Diameters

Magnetic Disc Apparatus

73 patents: Sort by Forward Citations

1. 10083715 - Method of manufacturing a perpendicular magnetic disc (2018-09-25),

2. 9558778 - Lubricant compound for magnetic disk and magnetic disk (2017-01-31),

3. 9472227 - Perpendicular magnetic recording media and methods for producing the same (2016-10-18),

4. 9424873 - Method of manufacturing magnetic recording medium, and magnetic recording medium (2016-08-23),

5. 9349404 - Perpendicular magnetic recording disc (2016-05-24),

6. 9245568 - Magnetic disk and method of manufacturing the same (2016-01-26),

7. 9240204 - Perpendicular magnetic recording disc (2016-01-19),

8. 9183869 - Perpendicular magnetic recording medium and method of manufacturing perpendicular magnetic recording medium (2015-11-10),

9. 9177586 - Magnetic disk and manufacturing method thereof (2015-11-03),

10. 9159351 - Perpendicular magnetic recording medium and method of manufacturing the same (2015-10-13),

11. 9142241 - Perpendicular magnetic recording medium and method of manufacturing the same (2015-09-22),

12. 9142238 - Vertical magnetic recording disk manufacturing method and vertical magnetic recording disk (2015-09-22),

13. 9093100 - Magnetic recording medium including tailored exchange coupling layer and manufacturing method of the same (2015-07-28),

14. 9082444 - Magnetic recording medium and method of manufacturing a magnetic recording medium (2015-07-14),

15. 9064518 - Perpendicular magnetic recording medium (2015-06-23),

WD Media (Singapore) Pte. Ltd. is a leading media production company based in Singapore. With our expertise in video production, animation, and motion graphics, we help businesses and organizations create impactful visual content for their marketing, advertising, and communication needs. Our team of talented professionals is dedicated to delivering high-quality and creative solutions tailored to our clients' objectives. Visit our website to explore our portfolio and learn how we can assist you in telling your brand's story.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

73 Patents

#46 in Irvine, CA

#1,157 in California

#4,853 in US

#9,955 in the World

Irvine, CA, United States of America

Wd Media (Singapore) Pte. Ltd.

Forward Citations = 2,652

41 inventors:

Teiichiro Umezawa (16 out of 30 patents)

Takahiro Onoue (16 out of 27 patents)

Yoshiaki Sonobe (14 out of 16 patents)

4. Tokichiro Sato (13 out of 13 patents)

5. Koichi Shimokawa (11 out of 18 patents)

Please report any incorrect information to support@idiyas.com

Loading…