Saitama, Japan

Takahiko Sakai

This inventor holds 6 USPTO granted patents and 1 published patent application. Top assignees: Tamron Company, Ltd., Sony Corporation. Active years: 2013-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takahiko Sakai. Retrieved from https://idiyas.com/inventor/takahiko-sakai

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

USPTO Granted Patents = 6 

% Patents Active = 66.7

Average Co-Inventor Count = 1.8

ph-index = 2

Forward Citations = 10(Granted Patents)


Company Filing History:


Years Active: 2013-2017

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6 patents (USPTO):Explore Patents

Title: The Innovations of Takahiko Sakai

Introduction

Takahiko Sakai is a prominent inventor based in Saitama, Japan. He has made significant contributions to the field of optics, particularly in lens design. With a total of six patents to his name, Sakai's work has had a lasting impact on the industry.

Latest Patents

One of Sakai's latest patents is for an inner focus lens. This innovative lens design includes, sequentially from the object side, a first lens group with a positive refractive power, a second lens group with a negative refractive power, and a third lens group also with a negative refractive power. The second lens group is designed to move along the optical axis, allowing for focusing from a state for an object at infinity to a state for a minimum object distance. The inner focus lens satisfies a specific conditional expression, ensuring optimal performance in various focusing scenarios.

Career Highlights

Throughout his career, Takahiko Sakai has worked with notable companies such as Tamron Company, Ltd. and Sony Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking optical technologies.

Collaborations

Sakai has collaborated with esteemed colleagues, including Nobuyuki Adachi and Yasuhiko Obikane. These partnerships have fostered innovation and have been instrumental in the development of advanced optical systems.

Conclusion

Takahiko Sakai's contributions to lens technology and his collaborations with industry leaders highlight his importance in the field of optics. His innovative designs continue to influence the industry 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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