Ibaraki, Japan

Masamichi Ito

This inventor holds 3 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1989-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masamichi Ito. Retrieved from https://idiyas.com/inventor/masamichi-ito-p96arl6t

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 = 3.1

ph-index = 2

Forward Citations = 27(Granted Patents)


Location History:

  • Ibaraki, JP (1989)
  • Ibaraki-ken, JP (1996 - 1997)

Company Filing History:


Years Active: 1989-1997

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3 patents (USPTO):Explore Patents

Title: Masamichi Ito: Innovator in Optical Disc Technology

Introduction

Masamichi Ito is a prominent inventor based in Ibaraki, Japan, known for his contributions to optical disc technology. He holds a total of 3 patents that showcase his innovative approach to enhancing optical disc apparatuses. His work has significantly impacted the efficiency and functionality of these devices.

Latest Patents

One of Ito's latest patents is a positioning device for optical disc apparatus. This invention includes a focus error detecting part that identifies a focus error signal related to the information recording surface of an optical disc. It features a light spot moving part that operates perpendicularly to the optical disc surface, along with digital arithmetic parts that process the focus error signal to generate control signals. Another notable patent is a tracking following apparatus for an optical disk device. This apparatus incorporates an objective for forming a light spot on an optical disk and utilizes both fine and coarse actuators to ensure precise tracking. The system is designed to sense positional errors and adjust accordingly, enhancing the overall performance of optical disk devices.

Career Highlights

Masamichi Ito is currently employed at Hitachi, Ltd., where he continues to develop innovative solutions in the field of optical technology. His work at Hitachi has allowed him to collaborate with other talented engineers and researchers, further advancing the capabilities of optical disc technology.

Collaborations

Ito has worked alongside notable colleagues such as Hidehito Yamada and Atsushi Okuyama. Their combined expertise has contributed to the successful development of various optical technologies.

Conclusion

Masamichi Ito's contributions to optical disc technology through his patents and work at Hitachi, Ltd. highlight his role as a key innovator in the field. His inventions continue to influence the design and functionality of optical devices, showcasing the importance of innovation in technology.

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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