Chiba, Japan

Hiromitsu Sakai

This inventor holds 14 USPTO granted patents and 1 EPO patent, primarily in Semiconductor Technology. Top assignees: Showa Denko K.k., Toyoda Gosei Co., Ltd.. Active years: 2009-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiromitsu Sakai. Retrieved from https://idiyas.com/inventor/hiromitsu-sakai-xpuzp0nk

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

Calculating rank

% Patents Active = 92.9


Average Co-Inventor Count = 1.6

ph-index = 4

Forward Citations = 61(Granted Patents)


Location History:

  • Ichihara, JP (2009 - 2014)
  • Chiba, JP (2011 - 2014)

Company Filing History:


Years Active: 2009-2014

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Areas of Expertise:
Semiconductor
Light-Emitting Device
Manufacturing Method
Group III Nitride
Layered Structure
Re-Growth Layer
Concavo-Convex Part
Production Method
Electronic Equipment
Lamp
14 patents (USPTO):Explore Patents

Title: Hiromitsu Sakai: Innovator in Semiconductor Technology

Introduction

Hiromitsu Sakai is a prominent inventor based in Chiba, Japan, known for his significant contributions to semiconductor technology. With a total of 14 patents to his name, Sakai has made remarkable advancements in the field of light-emitting elements and electronic devices.

Latest Patents

Sakai's latest patents include a semiconductor light-emitting element manufacturing method, which involves a two-step process. The first step consists of laminating a first n-type semiconductor layer onto a substrate using a first organometallic chemical vapor deposition apparatus. The second step involves sequentially laminating a regrowth layer, a second n-type semiconductor layer, an active layer, and a p-type semiconductor layer onto the first n-type semiconductor layer using a second organometallic chemical vapor deposition apparatus. Another notable patent details a method for manufacturing a semiconductor light-emitting element, which includes forming a first n-type semiconductor layer on a substrate and sequentially forming additional layers to create a functional light-emitting element.

Career Highlights

Throughout his career, Hiromitsu Sakai has worked with notable companies such as Toyoda Gosei Co., Ltd. and Showa Denko K.K. His work has significantly impacted the development of semiconductor technologies, particularly in the manufacturing of light-emitting elements.

Collaborations

Sakai has collaborated with esteemed colleagues, including Hironao Shinohara and Hisayuki Miki, contributing to various innovative projects in the semiconductor field.

Conclusion

Hiromitsu Sakai's contributions to semiconductor technology and his extensive patent portfolio highlight his role as a leading inventor in the industry. His innovative methods continue to influence the development of electronic devices and light-emitting elements.

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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