Tokyo, Japan

Masahisa Shinoda

This inventor holds 20 USPTO granted patents and 1 EPO patent, primarily in Optical Information Processing. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation. Active years: 1990-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahisa Shinoda. Retrieved from https://idiyas.com/inventor/masahisa-shinoda

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


% Patents Active = 65.0


Average Co-Inventor Count = 2.7

ph-index = 7

Forward Citations = 184(Granted Patents)


Location History:

  • Kyoto, JP (1990)
  • Nagaokakyo, JP (1994 - 2007)
  • Tokyo, JP (1992 - 2014)

Company Filing History:


Years Active: 1990-2014

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Areas of Expertise:
Optical Disc Medium
Optical Head Device
Diffractive Optical Element
Optical Pickup
Semiconductor Laser
Magneto-Optical Recording
Laser Power Control
Multi-Beam Optical Recording
Optical Recording Apparatus
Optical Information Processing
Wobbling Guide Tracking
Light Spot Switching
20 patents (USPTO):Explore Patents

Title: Masahisa Shinoda: A Visionary in Optical Technology

Introduction: Masahisa Shinoda, based in Tokyo, Japan, is a distinguished inventor with a remarkable portfolio of 20 patents. His contributions primarily focus on the field of optical disc technology, where he has dedicated his expertise to enhancing data storage and retrieval methods.

Latest Patents: Among his latest innovations are two significant patents. The first, related to an optical disc medium, addresses the challenges of detecting tracking error signals while increasing pit density. This innovation features pit trains that have their widths narrower than the diffraction limit, arranged in such a way that enables effective push-pull detection of diffraction light, thereby improving tracking accuracy.

The second patent involves an optical head device integrated into an optical disc device. This invention utilizes a diffractive optical element and a photodetector. It enhances the detection capabilities by strategically utilizing primary and secondary diffraction regions to capture different components of the reflectively diffracted light beam, further optimizing the performance of optical disc devices.

Career Highlights: Throughout his career, Shinoda has gained valuable experience working with esteemed companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His work has consistently focused on pushing the boundaries of optical technology, making significant strides in the efficiency and effectiveness of optical data storage solutions.

Collaborations: In his journey of innovation, Masahisa Shinoda has collaborated with notable professionals, including Kenya Nakai and Daisuke Matsubara. These collaborations have contributed to the successful development and implementation of his groundbreaking inventions.

Conclusion: Masahisa Shinoda's relentless pursuit of innovation in optical technology has positioned him as a key figure in his field. His latest patents not only advance current technology but also pave the way for future developments in data storage solutions.

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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