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For the Inventor, By the Inventor

Tagajo, Japan

Akira Hashimoto

This inventor holds 5 USPTO granted patents. Top assignees: Sony Corporation, Nippon Polyurethane Industry Co., Ltd.. Active years: 1983-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akira Hashimoto. Retrieved from https://idiyas.com/inventor/akira-hashimoto-ultsb6g8

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 3.2

ph-index = 5

Forward Citations = 136(Granted Patents)


Location History:

  • Tagajyo, JP (1983 - 1985)
  • Tagajo, JP (1985)
  • Miyagi, JP (1987)

Company Filing History:

goldMedal5 out of 58,148 
 
Sony Corporation
 patents
silverMedal1 out of 35 
 
Nippon Polyurethane Industry Co., Ltd.
 patents
where one patent can have more than one assignee

Years Active: 1983-1987

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5 patents (USPTO):Explore Patents
1. 4656089 - Magnetic recording medium (1987-04-07),
2. 4529661 - Magnetic recording medium (1985-07-16),
3. 4521486 - Magnetic recording medium (1985-06-04),
4. 4400498 - Thermoplastic polyurethane resins (1983-08-23),
5. 4368238 - Magnetic recording media (1983-01-11),

Title: Akira Hashimoto: Innovator in Magnetic Recording Technology

Introduction

Akira Hashimoto is a notable inventor based in Tagajo, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 5 patents. His work has been influential in enhancing the performance and efficiency of magnetic recording mediums.

Latest Patents

One of his latest patents involves a magnetic recording medium that comprises a non-magnetic base and a magnetic layer attached thereto. This magnetic layer consists essentially of magnetic powders and a binder. Notably, the binder includes spherical small-sized particles of a benzoguanamine-formaldehyde resin or a benzoguanamine-melamine-formaldehyde resin. These components serve to improve the running characteristics, reduce the friction coefficient, and enhance the strength of the layer.

Career Highlights

Throughout his career, Akira Hashimoto has worked with prominent companies such as Sony Corporation and Nippon Polyurethane Industry Co., Ltd. His experience in these organizations has allowed him to develop innovative solutions that have advanced the field of magnetic recording.

Collaborations

He has collaborated with several talented individuals, including Yoshinobu Ninomiya and Masashi Somezawa. Their combined expertise has contributed to the success of various projects in which they have been involved.

Conclusion

Akira Hashimoto's contributions to magnetic recording technology have established him as a key figure in the industry. His innovative patents and collaborations reflect his commitment to advancing technology in this field.

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]
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