Kanagawa, Japan

Hirokazu Ejiri

This inventor holds 24 USPTO granted patents and 4 published patent applications and 2 EPO patents, primarily in Semiconductor Devices. Top assignees: Sony Corporation, Sony Semiconductor Solutions Corporation, Sony Group Corporation. Active years: 1996-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hirokazu Ejiri. Retrieved from https://idiyas.com/inventor/hirokazu-ejiri

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

USPTO Granted Patents = 24 

% Patents Active = 83.3

 

Average Co-Inventor Count = 1.7

ph-index = 4

Forward Citations = 55(Granted Patents)


Location History:

  • Tokyo, JP (2004)
  • Kanagawa, JP (1996 - 2024)

Company Filing History:


Years Active: 1996-2026

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Areas of Expertise:
Comparator
Light Detection Element
Solid-State Imaging
Electronic Device
Atom Diffusion Barrier
Integrated Injection Logic
Capacitive Elements
Bipolar Transistor
Manufacturing Method
Semiconductor Fabrication
Floating Diffusion Regions
Information Processing
24 patents (USPTO):Explore Patents

Title: Innovations by Hirokazu Ejiri: A Pioneer in Semiconductor Technology

Introduction

Hirokazu Ejiri, based in Kanagawa, Japan, is a prolific inventor known for his significant contributions to semiconductor technology. With a remarkable portfolio of 20 patents, he has made strides in enhancing the reliability and efficiency of electronic devices through innovative design and engineering.

Latest Patents

Among his latest inventions is a cutting-edge semiconductor device that stabilizes the melting location of a fuse, ensuring reliable performance. This patent outlines a multilayer structure on a semiconductor substrate that includes a fuse body and conductive layers, allowing for optimal melting during electrical stress. Another notable patent involves a solid-state image pickup apparatus featuring a photoelectric conversion section and a Vertical Nano Wire (V-NW) transistor. This technology contributes to the development of CMOS image sensors, showcasing his commitment to advancing imaging technology.

Career Highlights

Hirokazu has held key positions at prominent companies, including Sony Corporation and Sony Semiconductor Solutions Corporation. His work has consistently focused on improving the functionalities of semiconductor devices and image sensors, solidifying his reputation as an innovator in the field.

Collaborations

During his career, Ejiri has collaborated with esteemed colleagues such as Shigeru Kanematsu and Hiroyuki Miwa, further enriching his inventive endeavors. These collaborations have led to the development of technologies that push the boundaries of what is possible in semiconductor applications.

Conclusion

Hirokazu Ejiri's contributions to the field of semiconductor technology are marked by his innovative patents and impactful collaborations. His work not only enhances the reliability of electronic devices but also propels advancements in imaging technology, making him a key figure in the world of inventions and innovations.

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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