Tokyo, Japan

Junichi Masukawa

This inventor holds 4 USPTO granted patents and 3 published patent applications and 1 EPO patent. Top assignees: Hitachi Metals, Ltd., Kao Corporation. Active years: 1996-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Junichi Masukawa. Retrieved from https://idiyas.com/inventor/junichi-masukawa

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

USPTO Granted Patents = 4 

% Patents Active = 100.0

 

Average Co-Inventor Count = 3.2

ph-index = 1

Forward Citations = 4(Granted Patents)


Location History:

  • Tottori, JP (2014)
  • Tokyo, JP (1996 - 2017)

Company Filing History:


Years Active: 1996-2017

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4 patents (USPTO):Explore Patents

Title: Junichi Masukawa: Innovator in Semiconductor Technology

Introduction

Junichi Masukawa is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on enhancing the performance and reliability of semiconductor packages.

Latest Patents

Masukawa's latest patents include a circuit substrate for semiconductor packages that incorporates multiple circuit substrate units. This innovative design allows for the mounting of several semiconductor devices. The first circuit substrate unit is constructed with a dielectric layer made from a first dielectric material that has a higher Young's modulus compared to the second dielectric material used in the second circuit substrate unit. Additionally, the first dielectric material exhibits a smaller coefficient of thermal expansion than the second, which is crucial for maintaining stability under varying temperatures. Another notable patent involves a dielectric ceramic composition that boasts a high dielectric constant while maintaining a low thermal expansion coefficient. This composition is characterized by its ability to achieve a dielectric constant of not less than 10 at 3 GHz and an average thermal expansion coefficient of less than 7 ppm/°C over a temperature range of 40-600°C.

Career Highlights

Throughout his career, Junichi Masukawa has worked with esteemed companies such as Kao Corporation and Hitachi Metals, Ltd. His experience in these organizations has allowed him to refine his expertise in semiconductor technology and materials science.

Collaborations

Masukawa has collaborated with notable professionals in his field, including Nobuyuki Isshiki and Nobunori Ohji. These collaborations have contributed to the advancement of innovative solutions in semiconductor applications.

Conclusion

Junichi Masukawa's contributions to semiconductor technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of advanced electronic components.

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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