Tokyo, Japan

Hiroyuki Yamazaki

This inventor holds 70 USPTO granted patents and 4 published patent applications and 4 EPO patents, primarily in Optical Devices (CPC class G02B). Top assignees: Nec Corporation, Konica Corporation, The Furukawa Electric Co., Ltd.. Active years: 1987-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroyuki Yamazaki. Retrieved from https://idiyas.com/inventor/hiroyuki-yamazaki

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

USPTO Granted Patents = 70 

% Patents Active = 64.3

 

Average Co-Inventor Count = 1.6

ph-index = 13

Forward Citations = 579(Granted Patents)

Forward Citations (Not Self Cited) = 570(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Aichi-ken, JP (2003)
  • Hachioji, JP (1995 - 2004)
  • Minato-ku, JP (2005)
  • Chiyoda-ku, JP (2012)
  • Chiba, JP (2004 - 2015)
  • Otsuki, JP (2016)
  • Tokyo, JP (1987 - 2020)
  • Yokohama, JP (2021)

Company Filing History:


Years Active: 1987-2021

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Areas of Expertise:
Optical Device
Tunable Laser
Waveguide
Liquid Crystal Display
Optical Mixer
Optical Module
Polarization Beam Splitter
Optical Receiver
Three-Dimensional Display
Variable-Wavelength Laser
Manufacturing Method
Light-Emitting Element
70 patents (USPTO):Explore Patents

Title: The Innovative Mind of Hiroyuki Yamazaki

Introduction

Hiroyuki Yamazaki, an accomplished inventor based in Tokyo, Japan, has significantly contributed to the field of technology and engineering with 70 unique patents to his name. His innovations, particularly in electrical connectors and optical devices, showcase his creativity and technical expertise.

Latest Patents

Among his latest patents is an innovative electrical connector for flat conductors. This design includes a movable member at the insertion point for flat conductors, enhanced with engaging portions that secure the conductor upon complete insertion. It employs rearward sloped surfaces, providing effective interfacing and stability under disengagement forces.

Furthermore, he has developed a symmetric coherent optical mixer, a state-of-the-art device that features symmetric MMI couplers and bent waveguides. This technology allows superior performance as a 90-degree optical hybrid, offering significant improvements over previous devices in the realm of Silicon Photonics.

Career Highlights

Hiroyuki has cultivated a rich career, with notable positions at established companies like NEC Corporation and Konica Corporation. His work in these organizations has allowed him to push the boundaries of innovation, particularly in telecommunications and optical technology.

Collaborations

Throughout his career, Hiroyuki Yamazaki has collaborated with esteemed colleagues such as Norikazu Arai and Shinichiro Saito. Their teamwork has spurred advancements in various technologies, highlighting the importance of collaboration in scientific development.

Conclusion

Hiroyuki Yamazaki stands out as a prolific inventor whose contributions have advanced the fields of electrical engineering and optics. His innovative spirit continues to inspire the next generation of inventors. As he progresses in his career, further groundbreaking patents can be expected, reinforcing his status as a leading figure in 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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