Tokyo, Japan

Hiroaki Morikawa

This inventor holds 26 USPTO granted patents and 5 published patent applications and 4 EPO patents, primarily in Solar Cell Technology. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation. Active years: 1993-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroaki Morikawa. Retrieved from https://idiyas.com/inventor/hiroaki-morikawa-uw6e9086

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

USPTO Granted Patents = 26 

% Patents Active = 61.5

 

Average Co-Inventor Count = 3.2

ph-index = 10

Forward Citations = 401(Granted Patents)


Location History:

  • Amagasaki, JP (1996 - 1998)
  • Itami, JP (1993 - 1999)
  • Hyogo, JP (2000)
  • Chiyoda-ku, JP (2013)
  • Tokyo, JP (1998 - 2020)

Company Filing History:


Years Active: 1993-2020

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Areas of Expertise:
Solar Cell
Solar Battery
Photovoltaic Device
Silicon Wafers
Thin Film Solar Cell
Manufacturing Method
Solar Module
Silicon Blocks
Thin-Film Technology
Solar Manufacturing
Semiconductor Apparatus
26 patents (USPTO):Explore Patents

Title: The Innovative Mind of Hiroaki Morikawa

Introduction

Hiroaki Morikawa, based in Tokyo, Japan, is a renowned inventor with a remarkable portfolio of 26 patents. His pioneering work primarily focuses on advancements in solar cell technology, contributing significantly to the renewable energy sector.

Latest Patents

Among Morikawa's latest innovations are two notable patents. The first is a **solar cell manufacturing method** that introduces a complex diffusion layer on a semiconductor substrate. This method involves forming a first section with a lower concentration of impurities and a second section with a higher concentration. By using detection light that reflects differently off these two sections, the method facilitates enhanced detection accuracy of the solar cell's performance.

The second patent showcases a **solar cell design** that features a silicon substrate equipped with both an aluminum electrode and a silver electrode. Notably, the aluminum electrode includes an opening and a specialized notch designed to optimize stress distribution—ultimately improving the efficiency of electricity collection from the silicon substrate.

Career Highlights

Hiroaki Morikawa has built his career at prestigious companies such as Mitsubishi Electric Corporation and Mitsubishi Denki Kabushiki Kaisha. His tenure at these organizations has allowed him to collaborate on various innovative projects, thus solidifying his status as a key player in the field of solar technology.

Collaborations

Throughout his career, Morikawa has worked alongside esteemed colleagues including Satoshi Arimoto and Yoshinori Matsuno. Their collaborative efforts have sparked numerous advancements in the industry, further elevating the field of renewable energy solutions.

Conclusion

Hiroaki Morikawa's contributions through his 26 patents, particularly in solar technology, illustrate his commitment to innovation and sustainability. His work not only reflects technical ingenuity but also plays a crucial role in transitioning towards a more sustainable energy future.

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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