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For the Inventor, By the Inventor

Hitachi, Japan

Hiromi Shiina

USPTO Granted Patents = 22 

Average Co-Inventor Count = 4.8

ph-index = 5

Forward Citations = 77(Granted Patents)


Location History:

  • Taga-gun Jyuo, JP (2007)
  • Fujisawa, JP (2007 - 2009)
  • Jyuou, JP (2009)
  • Ibaraki, JP (2009 - 2012)
  • Ibaraki-ken, JP (2013)
  • Hitachi, JP (2012 - 2016)

Company Filing History:

goldMedal9 out of 987 
 
Hgst Netherlands, B.v.
 patents
silverMedal8 out of 2,636 
 
Hitachi Global Storage Technologies Netherlands B.v.
 patents
bronzeMedal4 out of 227 
 
Hitachi Global Storage Technologies Japan, Ltd.
 patents
4. 1 out of 1 
 
Hgst Netherlands N.v.
 patent

Years Active: 2007-2016

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22 patents (USPTO):Explore Patents
1. 9406316 - Asymmetric MAMR head with self-aligned spin torque oscillator along flare edge for shingled magnetic recording (2016-08-02),
2. 9076466 - Asymmetric trailing shield writer for shingled magnetic recording (SMR) (2015-07-07),
3. 9047889 - Perpendicular magnetic recording head having a trailing side taper angle which is less than a leading side taper angle (2015-06-02),
4. 8929027 - Magnetic write head with tapered side gap for reduced far track interference (2015-01-06),
5. 8804282 - Magnetic write head having a hybrid material main pole for high frequency recording (2014-08-12),
6. 8630064 - Magnetic write head with novel shield structure having latterally extending trailing gap layer and concaved side gap (2014-01-14),
7. 8570683 - Low permeability material for a side shield in a perpendicular magnetic head (2013-10-29),
8. 8542462 - Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording (2013-09-24),
9. 8537493 - Magnetic head for perpendicular recording (2013-09-17),
10. 8472139 - Shingled magnetic recording (SMR) head with bent trailing shield and methods of production thereof (2013-06-25),
11. 8351156 - Perpendicular magnetic recording head having a main pole and first and second magnetic films peripheral to the main pole and having different depths from an air bearing surface (2013-01-08),
12. 8300358 - Magnetic head having write pole, first soft magnetic films separately disposed on both sides of the main pole, and a second soft magnetic film disposed on a trailing side of the main pole (2012-10-30),
13. 8189293 - Perpendicular magnetic recording head having a grooved wrap around shield and method for manufacturing the same (2012-05-29),
14. 8064161 - Perpendicular magnetic recording head and method for manufacturing the same (2011-11-22),
15. 7995311 - Magnetic shield, manufacturing method thereof and thin film magnetic head employing the same (2011-08-09),

Title: Hiromi Shiina: A Pioneer in Magnetic Recording Technologies

Introduction

Hiromi Shiina, based in Hitachi, Japan, is a prominent figure in the field of magnetic recording technologies. With an impressive portfolio of 22 patents, Shiina has significantly contributed to advancements in high-density data storage solutions. His innovative work has garnered attention and respect within the technology sector.

Latest Patents

Among Shiina's notable innovations are two recent patents that reflect his expertise in magnetic recording technology. The first patent is titled "Asymmetric MAMR head with self-aligned spin torque oscillator along flare edge for shingled magnetic recording." This patent describes a sophisticated structure for a perpendicular magnetic write head intended for use in magnetic disk drives. The technology includes a shingled microwave-assisted magnetic recording head designed for high areal-density drives, featuring a unique configuration with asymmetric side gaps and a spin torque oscillator.

The second patent, called "Asymmetric trailing shield writer for shingled magnetic recording (SMR)," introduces a magnetic head capable of producing a writing magnetic field with an asymmetrical main pole design. This innovation enhances the performance of magnetic heads in data storage applications by optimizing the interaction between the main pole and surrounding components.

Career Highlights

Throughout his career, Hiromi Shiina has worked with leading companies in the data storage industry, including HGST Netherlands B.V. and Hitachi Global Storage Technologies Netherlands B.V. His roles in these organizations have allowed him to pioneer cutting-edge technologies and contribute to the evolution of hard disk drives.

Collaborations

Shiina has collaborated with esteemed colleagues such as Kazue Kudo and Gen Oikawa. These partnerships have facilitated the exchange of ideas and fostered an environment of innovation, allowing them to produce numerous advancements in magnetic recording techniques.

Conclusion

Hiromi Shiina's contributions to the field of magnetic recording technology are invaluable. His extensive patent portfolio and collaborative spirit highlight his role as a leading innovator. As the industry continues to evolve, Shiina's work will undoubtedly inspire future advancements in data storage solutions, solidifying his legacy as a key figure in the field.

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