Miyagi, Japan

Hiroyuki Sakai

This inventor holds 1 USPTO granted patent. Top assignee: Sony Corporation. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Sakai. Retrieved from https://idiyas.com/inventor/hiroyuki-sakai-71q8tu4c

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

Calculating rank

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2002

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1 patent (USPTO):Explore Patents

Title: Hiroyuki Sakai: Innovator in Optical Disc Technology

Introduction

Hiroyuki Sakai is a prominent inventor based in Miyagi, Japan. He is known for his contributions to optical disc technology, particularly in the development of over-writable magneto-optical recording mediums. His innovative work has led to advancements in data storage solutions.

Latest Patents

Sakai holds a patent for an optical disc that features groove and land tracks. This invention includes a recording section with a first dielectric layer, a first recording layer, a second recording layer, and a second dielectric layer formed sequentially. Additionally, it incorporates a reflective layer and a protective layer. The design includes a groove formed on a transparent substrate along a recording track, with specific relationships defined for the groove's width and depth.

Career Highlights

Hiroyuki Sakai has made significant strides in his career, particularly through his work at Sony Corporation. His expertise in optical disc technology has positioned him as a key figure in the field of data storage innovation.

Collaborations

Sakai has collaborated with notable colleagues, including Takeshi Koizumi and Norio Adachi. Their combined efforts have contributed to the advancement of technology in their respective areas of expertise.

Conclusion

Hiroyuki Sakai's contributions to optical disc technology exemplify the spirit of innovation in the field of data storage. His patent and collaborative efforts continue to influence advancements in this critical area of 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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