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For the Inventor, By the Inventor

Sunnyvale, CA, United States of America

Kazumasa Yasuda

USPTO Granted Patents = 18

Average Co-Inventor Count = 4.6

ph-index = 9

Forward Citations = 270(Granted Patents)


Location History:

  • Hong Kong, CN (2007)
  • Sunnyvale, CA (US) (1998 - 2016)

Company Filing History:

goldMedal12 out of 1,215 
 
Headway Technologies, Incorporated
 patents
silverMedal10 out of 763 
 
Sae Magnetics (h.k.) Limited
 patents
where one patent can have more than one assignee

Years Active: 1998-2016

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18 patents (USPTO):Explore Patents
1. 9502053 - Magnetic head for perpendicular magnetic recording with a trailing shield including a plurality of portions different in saturation flux density (2016-11-22),
2. 9495980 - Magnetic head for perpendicular magnetic recording with a coil including two coil portions (2016-11-15),
3. 9406318 - Magnetic head for perpendicular magnetic recording including two side shields and main pole including lower protrusion (2016-08-02),
4. 9251812 - Magnetic head for perpendicular magnetic recording including angled side shield surfaces (2016-02-02),
5. 8900466 - Method of manufacturing a near-field light generator including a waveguide and a plasmon generator (2014-12-02),
6. 8767347 - Magnetic head for perpendicular magnetic recording having two side shields (2014-07-01),
7. 8493821 - Thermally-assisted magnetic recording head including a shield (2013-07-23),
8. 8456968 - Thermally-assisted magnetic recording head having dual heat sink layers (2013-06-04),
9. 8454848 - Method of manufacturing plasmon generator (2013-06-04),
10. 8295008 - Magnetic head for perpendicular magnetic recording having a main pole and a shield (2012-10-23),
11. 8289649 - Magnetic head for perpendicular magnetic recording with shield around main magnetic pole (2012-10-16),
12. 7836579 - Method to protect a GMR head from electrostatic damage during the manufacturing process (2010-11-23),
13. 7513820 - Method and apparatus for producing micro-texture on a slider substrate using chemical and mechanical polishing techniques (2009-04-07),
14. 7296336 - Method to protect a GMR head from electrostatic damage during the manufacturing process (2007-11-20),
15. 7239488 - MR sensor on an insulating substrate and method of manufacture (2007-07-03),

Title: Kazumasa Yasuda: Innovator in Magnetic Recording Technology

Introduction

Kazumasa Yasuda is a prominent inventor based in Sunnyvale, CA, known for his significant contributions to the field of magnetic recording technology. With a total of 18 patents to his name, Yasuda has made remarkable advancements that have influenced the design and functionality of magnetic heads used in data storage devices.

Latest Patents

Yasuda's latest patents showcase his innovative approach to magnetic head design. One notable patent is for a magnetic head for perpendicular magnetic recording that features a trailing shield with multiple portions differing in saturation flux density. This design includes a main pole, a write shield, and a gap section, where the trailing shield consists of four distinct portions. The first portion exhibits a higher saturation flux density compared to the other portions, enhancing the magnetic recording capabilities.

Another significant patent involves a magnetic head that incorporates a coil with two coil portions. This design includes a main pole and a return path section, which features a yoke section coupled to the main pole. The coil is ingeniously designed to have a common portion that serves both coil portions, optimizing the efficiency of the magnetic head.

Career Highlights

Throughout his career, Kazumasa Yasuda has worked with notable companies in the technology sector. He has been associated with Headway Technologies, Incorporated, where he contributed to advancements in magnetic recording technology. Additionally, he has worked with Sae Magnetics (H.K.) Limited, further enhancing his expertise in the field.

Collaborations

Yasuda has collaborated with esteemed colleagues such as Yoshitaka Sasaki and Hiroyuki Ito. Their combined efforts have led to significant innovations in magnetic recording technology, pushing the boundaries of what is possible in data storage.

Conclusion

Kazumasa Yasuda's contributions to magnetic recording technology are invaluable. His innovative designs and patents continue to shape the future of data storage solutions. His work exemplifies the spirit of innovation that drives advancements in technology.

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