Kanagawa, Japan

Makoto Harigaya

This inventor holds 46 USPTO granted patents and 2 EPO patents, primarily in Optical Recording Medium. Top assignees: Ricoh Company, Ltd., Other. Active years: 1983-2010.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Makoto Harigaya. Retrieved from https://idiyas.com/inventor/makoto-harigaya

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


% Patents Active = 69.6


Average Co-Inventor Count = 5.8

ph-index = 18

Forward Citations = 801(Granted Patents)


Location History:

  • Numazu, JP (1983)
  • Yokohama, JP (1989)
  • Kanagawa, JP (2000 - 2009)
  • Hiratsuka, JP (1991 - 2010)

Company Filing History:

goldMedal46 out of 28,940 
 
Ricoh Company, Ltd.
 patents
silverMedal1 out of 834,513 
Other
 patents
where one patent can have more than one assignee

Years Active: 1983-2010

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Areas of Expertise:
Optical Recording Medium
Phase-Change Technology
Sputtering Target
Multi-Layered Medium
Information Recording
Recording Method
Manufacturing Process
Optical Information
Reproducing Method
Heat Treated Material
Recording Apparatus
Pulse Width Modulation
46 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Makoto Harigaya in Optical Recording Technology

Introduction: Makoto Harigaya, based in Kanagawa, Japan, is a prominent inventor recognized for his significant contributions to the field of optical recording technology. With an impressive portfolio of 46 patents, Harigaya has played a pivotal role in advancing methods and apparatuses for optical information storage.

Latest Patents: Among his latest innovations, Harigaya has developed several notable patents including an optical recording medium, a multi-layered optical recording medium, and an associated recording method and apparatus. His recent patent describes a recording method for a multi-layered optical recording medium that includes M phase change recording layers, ensuring efficient information storage and retrieval. This method utilizes a laser that irradiates the Kth recording layer with a pulse train, optimizing the recording process as it adheres to specific timing and cycle characteristics. Another significant patent of his involves an optical information recording medium that incorporates a phase change type recording layer, which is engineered to achieve a maximum recording linear velocity, facilitating faster data access.

Career Highlights: Harigaya’s illustrious career includes collaborations with notable companies such as Ricoh Company, Ltd. Through his innovative work, he has contributed extensively to the improvements in optical recording technologies, influencing the design and functionality of optical media across various applications.

Collaborations: Throughout his career, Makoto Harigaya has worked alongside esteemed colleagues, including Yoshiyuki Kageyama and Hiroko Iwasaki. These collaborations have undoubtedly enriched his endeavors and led to groundbreaking advancements in his field.

Conclusion: Makoto Harigaya's dedication to innovation in optical recording technology showcases his talent as an inventor. With a wealth of patents to his name, he continues to impact the industry significantly, paving the way for future developments in optical information storage solutions. His work remains a testament to the importance of innovation in addressing the growing demands for data management and retrieval technologies.

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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