Kanagawa, Japan

Kenichi Masuyama

This inventor holds 24 USPTO granted patents and 1 published patent application, primarily in Magnetic Recording Technology. Top assignee: Fuji Photo Film Company, Limited. Active years: 1978-1999.

USPTO Granted Patents = 24 

% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 9

Forward Citations = 192(Granted Patents)


Location History:

  • Odawara, JP (1978 - 1988)
  • Kanagawa, JP (1985 - 1999)

Company Filing History:


Years Active: 1978-1999

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Areas of Expertise:
Magnetic Recording System
Magnetic Recording Medium
Magnetic Paint Preparation
Magnetic Recording Material
Running Properties
Disc Jacket
Magnetic Head Cleaning
Magnetic Recording Media
Preparation Methods
Magnetic Recording Process
Media Improvement
24 patents (USPTO):Explore Patents

Title: Innovations in Magnetic Recording: The Contributions of Kenichi Masuyama

Introduction

Kenichi Masuyama is a prominent inventor based in Kanagawa, Japan, known for his significant contributions to the field of magnetic recording technology. With an impressive portfolio of 24 patents, Masuyama has continuously pushed the boundaries of innovation in this specialized area.

Latest Patents

Among his latest patents, two notable innovations stand out in the realm of magnetic recording systems. The first patent reveals a magnetic recording system that features a thin-film magnetic head and a magnetic recording medium. This system includes a nonmagnetic support that has a magnetic layer primarily consisting of ferromagnetic particles and a binder resin, with the binder primarily being a vinyl chloride resin. Additionally, the ferromagnetic particles are surface-treated with an organic compound.

The second patent outlines another magnetic recording system that also utilizes a thin-film magnetic head. This system contains a nonmagnetic support with a nonmagnetic layer made up of inorganic nonmagnetic particles and a binder resin. Above the nonmagnetic layer, there is a magnetic layer comprised mainly of ferromagnetic metal particles and its own binder resin, which is primarily a vinyl chloride resin. Notably, the magnetic layer is designed to have a thickness ranging from 0.05 to 1.0 micrometers.

Furthermore, Masuyama has developed a magnetic recording medium featuring a nonmagnetic support with a magnetic layer. This innovation specifies that the magnetic layer is situated on one surface of the nonmagnetic support, consists of ferromagnetic particles, and exhibits a surface roughness ranging from 2 to 10 nanometers. The nonmagnetic support is engineered with multiple layers, including at least one layer containing an antistatic agent, and it possesses a surface roughness between 5 to 30 nanometers on the side opposite to the magnetic layer.

Career Highlights

Kenichi Masuyama has spent a significant part of his career at Fuji Photo Film Company, Limited, where his inventive spirit has been nurtured. His expertise in magnetic recording technologies has helped the company maintain its competitive edge in the industry.

Collaborations

Throughout his career, Masuyama has collaborated with notable coworkers, including Toshimitu Okutu and Masaaki Fujiyama. Their collective efforts in research and development have resulted in several pioneering advancements in magnetic recording systems, solidifying their impact in the field.

Conclusion

In summary, Kenichi Masuyama's contributions to magnetic recording technology are nothing short of remarkable. With his extensive patent portfolio and collaborations with fellow innovators, Masuyama continues to shape the future of this critical technological domain. His work not only enhances the performance of magnetic recording systems but also sets a foundation for future advancements in the industry.

Profile summary based on public USPTO records.
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