logo

For the Inventor, By the Inventor

Tokyo, Japan

Haruo Urai

This inventor holds 15 USPTO granted patents. Top assignees: Nec Corporation, Tdk Corporation, Tokin Corporation. Active years: 1995-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Haruo Urai. Retrieved from https://idiyas.com/inventor/haruo-urai

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

USPTO Granted Patents = 15

% Patents Active = 66.7

Average Co-Inventor Count = 2.6

ph-index = 6

Forward Citations = 86(Granted Patents)


Company Filing History:

goldMedal11 out of 36,718 
 
Nec Corporation
 patents
silverMedal4 out of 8,267 
 
Tdk Corporation
 patents
bronzeMedal1 out of 162 
 
Tokin Corporation
 patents
where one patent can have more than one assignee

Years Active: 1995-2007

Loading Chart...
15 patents (USPTO):Explore Patents
1. 7239482 - Thin-film magnetic head and nonmagnetic body filled concave portion formed on a pole layer and magnetic storage apparatus using the same (2007-07-03),
2. 7230794 - Thin-film magnetic head with nonmagnetic body filled concave portion formed on a pole layer and magnetic storage apparatus using the same (2007-06-12),
3. 7054107 - Thin-film magnetic head with nonmagnetic body filled concave portion formed on a pole layer and magnetic storage apparatus using the same (2006-05-30),
4. 6804088 - Thin film magnetic head, manufacturing method thereof and magnetic storage (2004-10-12),
5. 6597543 - Thin-film magnetic head and magnetic storage apparatus using the same (2003-07-22),
6. 6529352 - Magnetoresistive sensing element and magnetic head using the magnetoresistive sensing element (2003-03-04),
7. 6487042 - Thin-film magnetic head and magnetic storage apparatus using the same (2002-11-26),
8. 6452759 - Yoke-type magnetoresistive (MR) head, yoke-type MR composite thin film head, and magnetic storage apparatus (2002-09-17),
9. 6256177 - Giant magnetoresistive sensing element having longitudinally biased free layer with easy axis thereof parallel with signal field (2001-07-03),
10. 6209192 - Thin film magnetic head with magnetically insulating layer for suppressing undershoots, and method of fabricating the same (2001-04-03),
11. 6134091 - Spin-valve magneto-resistive head with horizontal type structure (2000-10-17),
12. 5828533 - Thin film magnetic head with differing saturation magnetic flux density (1998-10-27),
13. 5761014 - Thin film magnetic head with magnetically insulating layer for (1998-06-02),
14. 5736264 - Magnetic core and magnetic head using the same (1998-04-07),
15. 5404259 - Magnetic head having high wear resistance and non-magnetic substrate (1995-04-04),

Title: Haruo Urai: Innovator in Thin-Film Magnetic Head Technology

Introduction

Haruo Urai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of magnetic storage technology, holding a total of 15 patents. His work has been instrumental in advancing the design and functionality of thin-film magnetic heads.

Latest Patents

Urai's latest patents focus on the development of a thin-film magnetic head and a magnetic storage apparatus. The innovative design includes a lower shielding layer, a read gap layer that holds an MR magnetosensitive element, a common pole layer, and a write gap layer. This structure is built on an insulating substrate and features a unique concave portion filled with a nonmagnetic body. This design enhances the gap depth between the upper pole layer and the common pole layer, optimizing performance.

Career Highlights

Throughout his career, Haruo Urai has worked with notable companies such as NEC Corporation and TDK Corporation. His experience in these organizations has allowed him to refine his expertise in magnetic technologies and contribute to groundbreaking advancements in the field.

Collaborations

Urai has collaborated with esteemed colleagues, including Nobuyuki Ishiwata and Shinsaku Saitho. These partnerships have fostered innovation and have been pivotal in the development of his patented technologies.

Conclusion

Haruo Urai's contributions to thin-film magnetic head technology have established him as a key figure in the field. His innovative patents and collaborations continue to influence advancements in magnetic storage solutions.

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]
Loading…