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For the Inventor, By the Inventor

Niigata-ken, Japan

Naoya Hasegawa

USPTO Granted Patents = 188 

 

Average Co-Inventor Count = 2.4

ph-index = 17

Forward Citations = 1,347(Granted Patents)


Inventors with similar research interests:


Location History:

  • Sendai, JP (1992)
  • Yunotani, JP (1991 - 1993)
  • Nagaoka, JP (1996)
  • Nigata-ken, JP (2005)
  • Niigaka-ken, JP (2007 - 2009)
  • Niiata-ken, JP (2011)
  • Niigata-ken, JP (1997 - 2012)
  • Tokyo, JP (2007 - 2012)

Company Filing History:

goldMedal160 out of 4,048 
 
Alps Electric Co., Ltd.
 patents
silverMedal27 out of 7,952 
 
Tdk Corporation
 patents
bronzeMedal1 out of 6 
 
Alps Electronics Co., Ltd.
 patents
4. 1 out of 832,680 
Other
 patents
where one patent can have more than one assignee

Years Active: 1991-2012

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Areas of Expertise:
Tunneling Magnetic Sensing
Magnetoresistive Sensors
Heusler Alloys
Magnetic Detection Elements
Spin-Valve Elements
Magnetic Sensitivity Stability
Nonmagnetic Metal Layers
Exchange Coupling Films
Giant Magnetoresistance
Magnetic Layer Composition
Magnetic Alloy Laminations
Tunnel Magnetoresistive Sensors
188 patents (USPTO):Explore Patents
1. 8208231 - Tunneling magnetic sensing element with insertion magnetic layer inspired into soft magnetic layer (2012-06-26),
2. 8130476 - Tunneling magnetic sensing element and method for manufacturing the same (2012-03-06),
3. 8124253 - Tunneling magnetic sensing element including MGO film as insulating barrier layer (2012-02-28),
4. 8054588 - Tunneling magnetoresistive element including multilayer free magnetic layer having inserted nonmagnetic metal sublayer (2011-11-08),
5. 8045300 - Tunneling magnetic sensing element and method for producing same (2011-10-25),
6. 8023233 - Tunneling magnetic sensing element including free magnetic layer and IrMn protective layer disposed thereon and method for manufacturing the same (2011-09-20),
7. 8009391 - Magnetic sensing element and method for manufacturing the same (2011-08-30),
8. 7969693 - Tunnel magnetoresistive sensor in which at least part of pinned layer is composed of CoFeB layer and method for manufacturing the tunnel magnetoresistive sensor (2011-06-28),
9. 7969690 - Tunneling magnetoresistive element which includes Mg-O barrier layer and in which nonmagnetic metal sublayer is disposed in one of magnetic layers (2011-06-28),
10. 7961442 - Tunneling magnetic detecting element having insulation barrier layer and method for making the same (2011-06-14),
11. 7933100 - Tunneling magnetic sensor including free magnetic layer and magnesium protective layer disposed thereon (2011-04-26),
12. 7916436 - Tunneling magnetic sensor including platinum layer and method for producing the same (2011-03-29),
13. 7907370 - Tunneling magnetic sensing element having free layer containing CoFe alloy (2011-03-15),
14. 7881024 - Tunnel-type magnetic detecting element and method of manufacturing the same (2011-02-01),
15. 7839608 - Tunnel-type magnetic detecting device having laminated seed layer (2010-11-23),

Title: Naoya Hasegawa: Pioneering Innovations in Magnetic Sensing Technology

Introduction:

Naoya Hasegawa, a talented inventor based in Niigata-ken, Japan, has made significant contributions in the field of magnetic sensing technology. With a remarkable portfolio of 188 patents, Hasegawa is recognized for his expertise in developing advanced tunneling magnetic sensing elements. In this article, we delve into his latest patents, career highlights, notable collaborations, and recognize his invaluable contributions to the field of inventions and patents.

Latest Patents:

Among Hasegawa's recent patents, his groundbreaking invention "Tunneling magnetic sensing element with insertion magnetic layer inspired into a soft magnetic layer" stands out. This technology, implemented in a laminated structure, utilizes an insulating barrier layer made of Mg—O. By inserting an insertion magnetic layer, such as Co—Fe—B or Co—B, into the soft magnetic layer, the element achieves enhanced spin polarization ratio and improved performance. This innovation has transformative potential in industries relying on magnetic sensing applications.

Another notable invention is the "Tunneling magnetic sensing element and method for manufacturing the same." This invention features a tunneling magnetic sensing element composed of a pinned magnetic layer, an insulating barrier layer, and a free magnetic layer. The use of protective layers composed of platinum-group elements and titanium helps enhance the durability and reliability of the element, making it suitable for various practical applications.

Career Highlights:

Throughout his illustrious career, Hasegawa has worked with renowned companies at the forefront of technological advancements. Notably, he has made significant contributions to the research and development divisions of Alps Electric Company and TDK Corporation.

Collaborations:

Collaboration has played an essential role in Hasegawa's innovative journey. His notable collaborators include Masamichi Saito and Yosuke Ide. Their combined expertise and shared passion for pushing the boundaries of magnetic sensing technology have resulted in successful inventions and patents.

Conclusion:

Naoya Hasegawa's dedication to magnetic sensing technology and his impressive portfolio of 188 patents highlight his passion for innovation and problem-solving. His groundbreaking inventions, such as the insertion magnetic layer-inspired tunneling magnetic sensing element, offer promising solutions for various industries. Hasegawa's career milestones and collaborations demonstrate the power of teamwork in advancing technological frontiers.

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