Tokyo, Japan

Masaaki Yoshihara

This inventor holds 3 USPTO granted patents. Top assignee: Hoya Corporation. Active years: 2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaaki Yoshihara. Retrieved from https://idiyas.com/inventor/masaaki-yoshihara

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 3

Forward Citations = 100(Granted Patents)


Company Filing History:


Years Active: 2001

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3 patents (USPTO):Explore Patents

Title: Masaaki Yoshihara: Innovator in Optical Technology

Introduction

Masaaki Yoshihara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of optical technology, particularly in the development of advanced water repellency processing mechanisms and antireflection films.

Latest Patents

Yoshihara holds 3 patents that showcase his innovative approach to optical devices. His latest patents include a mechanism for performing water repellency processing on both sides of optical lens base materials simultaneously. This invention features a substrate holder that is rotatable in a vacuum atmosphere, allowing for the formation of water repellent films on both surfaces of the optical lens base materials. The design includes an upper and lower side water repellency processing unit, which work in tandem to create a uniform water repellent film on both sides. Additionally, he has developed a film thickness correcting mechanism to ensure consistency in film thickness during processing.

Another notable patent involves plastic optical devices that incorporate a multi-layered antireflection film. This film is created by alternating layers of high-refractive and low-refractive materials, enhancing the optical performance of the devices. The design allows for the precise regulation of film thickness, ensuring optimal functionality.

Career Highlights

Masaaki Yoshihara is currently employed at Hoya Corporation, a leading company in the optical industry. His work has significantly advanced the capabilities of optical devices, making them more efficient and effective in various applications.

Collaborations

Throughout his career, Yoshihara has collaborated with notable colleagues, including Hajime Kamiya and Hitoshi Kamura. These partnerships have fostered innovation and contributed to the success of their projects.

Conclusion

Masaaki Yoshihara's contributions to optical technology through his patents and work at Hoya Corporation highlight his role as a key innovator in the field. His advancements in water repellency processing and antireflection films continue to influence the industry positively.

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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