IDiyas

For the Inventor, By the Inventor

Tokyo, Japan

Noriaki Kasahara

USPTO Granted Patents = 30 

Average Co-Inventor Count = 3.6

ph-index = 7

Forward Citations = 208(Granted Patents)


Location History:

  • Saku, JP (2003)
  • Chuo-ku, JP (2006 - 2007)
  • Tokyo, JP (2002 - 2012)

Company Filing History:

goldMedal30 out of 7,952 
 
Tdk Corporation
 patents
silverMedal6 out of 763 
 
Sae Magnetics (h.k.) Limited
 patents
where one patent can have more than one assignee

Years Active: 2002-2012

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30 patents (USPTO):Explore Patents
1. 8303780 - Method of forming mask for dry etching and manufacturing method of magnetic head using the same method (2012-11-06),
2. 8000064 - Thin-film magnetic head for perpendicular magnetic recording and method of making the same (2011-08-16),
3. 7948716 - Magnetic head for perpendicular magnetic recording with a shield and a pole layer having a top surface with first and second portions at different heights, and method of manufacturing same (2011-05-24),
4. 7848056 - Thin film magnetic head having thermal expansion layer for suppressing thermal protrusion (2010-12-07),
5. 7843667 - Thin film magnetic head, head gimbal assembly, head arm assembly and magnetic disk device (2010-11-30),
6. 7808743 - Perpendicular magnetic write head having a structure that suppresses unintended erasure of information on a write medium at a non-writing time (2010-10-05),
7. 7796359 - Magnetic head for perpendicular magnetic recording and method of manufacturing the same, the magnetic head including pole layer and two shields sandwiching the pole layer (2010-09-14),
8. 7787215 - Thin film magnetic head in which thermal protrusion is suppressed and method of forming the same (2010-08-31),
9. 7672084 - Composite thin-film magnetic head with non-magnetic conductive layer electrically connected with lower pole layer to increase counter electrode area (2010-03-02),
10. 7573675 - Thin film magnetic head (2009-08-11),
11. 7548400 - Thin-film magnetic head comprising bias layers having a large length in track width direction (2009-06-16),
12. 7542245 - Composite thin-film magnetic head with non-magnetic conductive layer to balance parasitic capacitances (2009-06-02),
13. 7489481 - CCP Head having leads of substantially the same size and shape and not intervening between a shield layer and a MR element (2009-02-10),
14. 7440237 - Thin film magnetic head, head gimbal assembly, and hard disk drive (2008-10-21),
15. 7436633 - Thin-film magnetic head, head gimbal assembly and hard disk system (2008-10-14),

Title: Noriaki Kasahara: Innovator in Magnetic Technologies

Introduction

Noriaki Kasahara, located in Tokyo, Japan, is a distinguished inventor known for his contributions in the field of magnetic technologies. With an impressive portfolio boasting 30 patents, he has established himself as a leading figure in innovation, particularly in methods related to dry etching and magnetic head manufacturing.

Latest Patents

Kasahara’s recent patents showcase his innovative approach to technology. One of his notable inventions is a method of forming a mask for dry etching. This method involves sequentially sputtering a plurality of aluminum oxide films on a material intended for dry etching. The etching rate increases towards the lower layer, which enhances the overall efficiency of the dry etching process. Additionally, he developed a manufacturing method for a thin-film magnetic head specifically designed for perpendicular magnetic recording. This invention outlines the construction of a thin-film magnetic head, including a main magnetic pole with unique features that optimize its performance in data recording.

Career Highlights

Throughout his career, Noriaki Kasahara has worked with prominent companies, including TDK Corporation and Sae Magnetics (H.K.) Limited. His commitment to innovation and excellence in research has led to significant advancements in magnetic recording technology. His work has not only contributed to his personal success but has also greatly impacted the technology sector.

Collaborations

Kasahara has collaborated with esteemed colleagues, including Takeo Kagami and Koji Shimazawa. Their joint efforts have further propelled advancements in their field, showcasing the importance of collaboration in fostering innovation.

Conclusion

Noriaki Kasahara exemplifies the spirit of innovation with his extensive work in magnetic technologies and dry etching methods. His contributions, reflected in his patents and collaborations, underscore the critical role inventors play in shaping technological advancements that continue to impact our world.

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