Hino, Japan

Kunitsuna Sasaki

This inventor holds 15 USPTO granted patents, primarily in Magnetic Recording Media. Top assignees: Konica Corporation, Kabushiki Kaisha Toshiba, Konishiroku Photo Industry Co., Ltd.. Active years: 1988-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunitsuna Sasaki. Retrieved from https://idiyas.com/inventor/kunitsuna-sasaki

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 6

Forward Citations = 97(Granted Patents)


Location History:

  • Hachioji, JP (1993)
  • Hino, JP (1988 - 1996)

Company Filing History:


Years Active: 1988-1996

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Areas of Expertise:
Magnetic Recording Medium
Ferromagnetic Powder
Polyurethane Binder Resin
Magnetic Layer
Production Method
Magnetic Particles
Data Storage
High-Density Recording
Media Composition
Recording Technology
15 patents (USPTO):Explore Patents

Title: Kunitsuna Sasaki: Innovator in Magnetic Recording Technology

Introduction

Kunitsuna Sasaki is a prominent inventor based in Hino, Japan. He has made significant contributions to the field of magnetic recording technology, holding a total of 15 patents. His work has been instrumental in advancing the capabilities of magnetic recording media.

Latest Patents

Sasaki's latest patents focus on improving the performance of magnetic recording media. One of his notable inventions is a magnetic recording medium characterized by multiple magnetic layers on a non-magnetic support. The uppermost layer contains a ferromagnetic metallic powder and/or a hexagonal system magnetic powder along with a binder. Additionally, at least one layer other than the uppermost layer contains Co-containing iron oxide and a binder. The film thickness of the uppermost layer is 0.5 µm or less, and it has an R10z value of 50 nm or less, enhancing the electromagnetic conversion characteristics of the medium. Another patent describes a magnetic recording medium that achieves improved output properties across a wide range of wavelengths by controlling the magnetic reluctance and saturated magnetic flux density of the outermost layer and at least one other layer.

Career Highlights

Throughout his career, Kunitsuna Sasaki has worked with notable companies such as Konica Corporation and Konishiroku Photo Industry Co., Ltd. His expertise in magnetic recording technology has positioned him as a key figure in the industry.

Collaborations

Sasaki has collaborated with several talented individuals, including Narito Goto and Katsuyuki Takeda. These collaborations have contributed to the innovative advancements in his field.

Conclusion

Kunitsuna Sasaki's contributions to magnetic recording technology through his numerous patents highlight his role as a leading inventor. His work continues to influence the development of advanced magnetic recording media.

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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