Yokohama, Japan

Keiichiro Yusu

This inventor holds 34 USPTO granted patents and 3 published patent applications, primarily in Optical Recording Media. Top assignee: Kabushiki Kaisha Toshiba. Active years: 1996-2015.

USPTO Granted Patents = 34 

% Patents Active = 38.2

Average Co-Inventor Count = 4.9

ph-index = 10

Forward Citations = 290(Granted Patents)


Location History:

  • Kawasaki, JP (1996 - 2001)
  • Kanagawa-ken, JP (1998 - 2006)
  • Yokohama, JP (1996 - 2011)
  • Kanagawa, JP (2015)

Company Filing History:


Years Active: 1996-2015

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Areas of Expertise:
Optical Recording Medium
Phase Change Recording
Magnetic Recording
Optical Recording Head
Recording Method
Information Playback
Manufacturing Method
Optical Disk Drive
Magnetoresistance Effect
Photo-Inducible Coupling
Artificial Multilayer
Recording Apparatus
34 patents (USPTO):Explore Patents

Title: Innovations of Keiichiro Yusu: A Pioneer in Optical Technologies

Introduction: Keiichiro Yusu is a prominent inventor based in Yokohama, Japan, recognized for his significant contributions to optical technology. With an impressive portfolio of 34 patents, his innovations have played a crucial role in advancing technologies related to light deflection and optical recording systems.

Latest Patents: Among Keiichiro Yusu's latest inventions is a groundbreaking patent for a light deflecting element. This innovative element includes a dielectric body, a first electrode, and a second electrode, designed to efficiently apply voltage to the dielectric body. The distinctive structure allows for an enhanced interaction of light beams, featuring orthogonal and parallel portions alternately arranged to optimize light modulation. Additionally, he has developed an optical recording head device, which incorporates a specialized light source that outputs remarkably short optical pulses, thus improving the performance and accuracy of optical recording methods.

Career Highlights: Yusu has made significant strides in his field while working at the renowned company, Kabushiki Kaisha Toshiba. His work focuses on the development of cutting-edge optical technologies, and his patents demonstrate a commitment to innovation and engineering excellence.

Collaborations: Throughout his career, Keiichiro Yusu has collaborated with esteemed coworkers, including Sumio Ashida and Naomasa Nakamura. These partnerships have fostered a creative environment conducive to technological advancements, allowing for a collaborative approach to solving complex challenges in optical engineering.

Conclusion: Keiichiro Yusu stands out as an influential inventor in the realm of optical technologies. With his extensive list of patents and collaborations with notable industry figures, he continues to pave the way for future innovations that will undoubtedly leave a lasting impact on the field.

Profile summary based on public USPTO records.
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