Tokyo, Japan

Kunihiko Ootaguro

This inventor holds 2 USPTO granted patents, plus 1 CIPO patent. Top assignee: Taiyo Yuden Co., Ltd.. Active years: 1992-1994.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kunihiko Ootaguro. Retrieved from https://idiyas.com/inventor/kunihiko-ootaguro

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 = 4.0

ph-index = 2

Forward Citations = 44(Granted Patents)


Company Filing History:


Years Active: 1992-1994

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2 patents (USPTO):Explore Patents

Title: Kunihiko Ootaguro: Innovator in Optical Recording Technology

Introduction

Kunihiko Ootaguro is a notable inventor based in Tokyo, Japan. He has made significant contributions to the field of optical recording technology. With a total of 2 patents, his work focuses on enhancing the performance and durability of optical recording media.

Latest Patents

Ootaguro's latest patents include an optical recording medium containing a light stabilizer comprised of aryl. This invention highlights the utility of certain types of aryl nitrogen compounds, which effectively render dyes lightfast. These compounds serve as additives that possess high solubility in solvents and good miscibility with dyes, ensuring that their solubility remains intact. They are particularly useful in preventing various reactions that cause deterioration by light in organic dyes, especially cyanine dyes. Additionally, they improve the keeping quality and recording characteristics of optical recording media that utilize organic dyes in thin films.

Another significant patent is for an optical information recording medium and recording method. This invention features a light transmitting substrate with a spiral pregroove, a light absorptive layer of coloring matter, and a light reflective layer made of a metal film. The design ensures optimal optical phase difference, enhancing the performance of the recording medium.

Career Highlights

Throughout his career, Ootaguro has worked with prominent companies, including Taiyo Yuden Co., Ltd. His expertise in optical technologies has positioned him as a key figure in the industry.

Collaborations

Ootaguro has collaborated with notable individuals such as Emiko Hamada and Toru Fujii. These partnerships have contributed to the advancement of his innovative projects.

Conclusion

Kunihiko Ootaguro's contributions to optical recording technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of materials and their applications in enhancing optical media. His work continues to influence the field and inspire future advancements.

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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