Sakura, Japan

Hiroki Ishihara

This inventor holds 2 USPTO granted patents. Top assignee: Fujikura Limited. Active years: 2017-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroki Ishihara. Retrieved from https://idiyas.com/inventor/hiroki-ishihara-ywm6jpx3

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 = 3.1

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 2017-2019

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2 patents (USPTO):Explore Patents

Title: Hiroki Ishihara: Innovator in Optical Technology

Introduction

Hiroki Ishihara is a prominent inventor based in Sakura, Japan. He has made significant contributions to the field of optical technology, holding 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

Ishihara's latest patents include a method for connecting optical waveguides and optical fibers, as well as a semiconductor optical device and a method for manufacturing a semiconductor optical device with an optical fiber connected. The first invention addresses the prevention of optical loss associated with mode field diameter conversion and deformation in a mode field converter. This method involves temporarily fixing an end surface of an optical fiber to a core part using a highly-viscous resin, followed by a precise alignment and fixing of the optical fiber to a semiconductor optical device. His second patent describes an optical modulation device that utilizes a planar optical waveguide, featuring a Mach-Zehnder interferometer and a traveling-wave electrode to enhance light modulation capabilities.

Career Highlights

Hiroki Ishihara is currently employed at Fujikura Limited, a company known for its advancements in optical and telecommunications technologies. His work at Fujikura has allowed him to apply his innovative ideas in practical applications, contributing to the company's reputation in the industry.

Collaborations

Ishihara has collaborated with notable coworkers such as Ryokichi Matsumoto and Kazuhiro Goi. Their combined expertise has fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Hiroki Ishihara's contributions to optical technology through his patents and work at Fujikura Limited highlight his role as a key innovator in the field. His inventions not only advance technological capabilities but also pave the way for future developments in optical devices.

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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