Kawasaki, Japan

Hironao Hakogi

This inventor holds 22 USPTO granted patents, primarily in Optical Semiconductors. Top assignees: Fujitsu Corporation, Hirose Electric Company, Ltd., Oki Electric Industry Co., Ltd.. Active years: 1991-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hironao Hakogi. Retrieved from https://idiyas.com/inventor/hironao-hakogi

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 = 2.4

ph-index = 12

Forward Citations = 383(Granted Patents)


Company Filing History:


Years Active: 1991-2001

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Areas of Expertise:
Optical Connector
Optical Module
Optical Waveguide
Optical Semiconductor
Optical Transmitter
Waveguide Connection
Polarization Device
Molded Resin
Optical Isolator
Communication Lines
Dielectric Waveguide
Optical Modulator
22 patents (USPTO):Explore Patents

Title: **Innovative Contributions of Hironao Hakogi in Optical Technology**

Introduction

Hironao Hakogi, based in Kawasaki, Japan, is a renowned inventor with a significant portfolio of 22 patents. His work primarily focuses on advancements in optical technology, showcasing a blend of creativity and engineering expertise.

Latest Patents

Hakogi's latest patents reflect his innovative approach to optical connectors and optical modules. One of his notable inventions, the **Optical Connector**, features a housing that incorporates a ferrule holding portion designed to connect to an optical fiber. This connector includes a split sleeve that enables precise alignment with a mate connector's ferrule, enhancing the efficiency of optical connections. The design allows the ferrule to be inserted along the diameter direction and secured into the housing, promoting ease of use and functionality.

Another significant patent is the **Optical Module Packaged with Molded Resin**, which includes various essential components such as leads and a substrate with a first groove and conductor patterns. The ferrule in this module is designed to secure an optical fiber while being appropriately positioned within the groove. This innovative optical module is covered in transparent resin to protect the optical elements, illustrating Hakogi's commitment to both functionality and durability in optical designs.

Career Highlights

Throughout his career, Hakogi has contributed to reputable technology companies such as Fujitsu Corporation and Oki Electric Industry Co., Ltd., where he honed his skills and pushed the boundaries of optical technology. His experience within these industry leaders underscores his role in driving advancements and fostering innovation.

Collaborations

Hakogi has worked alongside notable colleagues, including Takashi Yamane and Kazuhiko Kobayashi. These collaborations have played a vital role in enhancing the development of his inventions and promoting breakthroughs in optical technologies.

Conclusion

Hironao Hakogi's contributions to the field of optical technology are significant, marked by his numerous patents and innovative designs. His work continues to influence and shape the future of optical communication, establishing him as a key figure in the realm of inventions that bridge practical applications with cutting-edge 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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