Yokohama, Japan

Hiromasa Isono

This inventor holds 4 USPTO granted patents. Top assignee: Victor Company of Japan, Limited. Active years: 1979-1986.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromasa Isono. Retrieved from https://idiyas.com/inventor/hiromasa-isono

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.4

ph-index = 2

Forward Citations = 23(Granted Patents)


Location History:

  • Yokohama, JP (1979 - 1982)
  • Atsugi, JP (1986)

Company Filing History:


Years Active: 1979-1986

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4 patents (USPTO):Explore Patents

Title: Hiromasa Isono: Innovator in Magnetic Technologies

Introduction

Hiromasa Isono is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of magnetic technologies, holding a total of 4 patents. His work focuses on enhancing the performance and efficiency of magnetic recording mediums.

Latest Patents

One of Isono's latest patents is an orientation processing device for magnetic particles on a disc-shaped medium. This device is designed to orient magnetic particles contained in a magnetic layer along the circumference of the recording medium. The orientation is achieved through a magnetic field generated by a pair of permanent magnets, which the recording medium traverses during rotation. The unique arrangement of the magnets allows for effective alignment with the radius of the recording medium.

Another significant patent involves a magnetic iron powder containing molybdenum. This innovative metallic powder comprises iron or iron-cobalt as its fundamental component, with molybdenum added in an amount of 0.05 to 5% by weight. The molybdenum enhances the coercive force of the metallic powder and prevents agglomeration of the heated particles, resulting in improved performance.

Career Highlights

Hiromasa Isono is currently employed at the Victor Company of Japan, Limited, where he continues to develop cutting-edge technologies in the magnetic field. His expertise and innovative approach have positioned him as a key figure in his industry.

Collaborations

Isono has collaborated with notable coworkers, including Noboru Takahashi and Sadao Ozaki. Their combined efforts have contributed to advancements in magnetic technologies and have fostered a collaborative environment for innovation.

Conclusion

Hiromasa Isono's contributions to magnetic technologies through his patents and collaborations highlight his role as a leading inventor in the field. His work continues to influence advancements in magnetic recording mediums and materials.

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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