Noriaki Kasahara

This inventor holds 30 USPTO granted patents and 1 published patent application, primarily in Thin-Film Magnetic Heads. Top assignees: Tdk Corporation, Sae Magnetics (h.k.) Limited. Active years: 2002-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Noriaki Kasahara. Retrieved from https://idiyas.com/inventor/noriaki-kasahara

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

USPTO Granted Patents = 30 (Patent Applications = 1)

% Patents Active = 70.0

Average Co-Inventor Count = 3.6

ph-index = 7

Forward Citations = 209(Granted Patents)

Location History:

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

Company Filing History:

Sae Magnetics (h.k.) Limited

patents

where one patent can have more than one assignee

Years Active: 2002-2012

Loading Chart...

Areas of Expertise:

Thin-Film Magnetic Head

Magnetoresistive Device

Manufacturing Method

Thermal Management

Perpendicular Magnetic Recording

Composite Structure

Magneto-Resistance Effect

Hard Disk Drive

Head Gimbal Assembly

Shield Layer

Write Coil

Parasitic Capacitance

30 patents (USPTO):Sort by Forward CitationsExplore 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.

Profile summary based on public USPTO records.

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

1 patent pending: