Saitama, Japan

Masahisa Sobue

This inventor holds 2 USPTO granted patents. Top assignee: Hitachi Metals, Ltd.. Active years: 2005-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahisa Sobue. Retrieved from https://idiyas.com/inventor/masahisa-sobue-2uq7l5vu

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 2

Forward Citations = 61(Granted Patents)


Company Filing History:


Years Active: 2005-2006

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2 patents (USPTO):Explore Patents

Title: Masahisa Sobue: Innovator in Silicon Nitride Technologies

Introduction

Masahisa Sobue is a prominent inventor based in Saitama-ken, Japan. He has made significant contributions to the field of materials science, particularly in the development of silicon nitride technologies. With a total of 2 patents, Sobue's work has implications for various applications in electronics and engineering.

Latest Patents

Sobue's latest patents focus on silicon nitride powder and its applications. One of his notable inventions is a silicon nitride sintered body that includes magnesium and rare earth elements such as lanthanum, yttrium, gadolinium, and ytterbium. The total oxide-converted content of these elements ranges from 0.6 to 7 weight percent. The production process involves mixing specific ratios of silicon nitride powders and sintering the mixture at high temperatures and pressures in a nitrogen atmosphere. This innovative approach enhances the properties of silicon nitride materials, making them suitable for advanced applications.

Career Highlights

Masahisa Sobue is associated with Hitachi Metals, Ltd., where he has been instrumental in advancing silicon nitride technologies. His expertise in materials science has led to the development of high-performance materials that are essential in various industrial applications. His work has not only contributed to the company's portfolio but has also positioned him as a key figure in the field of materials innovation.

Collaborations

Sobue has collaborated with notable colleagues, including Hisayuki Imamura and Shigeyuki Hamayoshi. These collaborations have fostered a productive environment for innovation and have led to significant advancements in their respective fields.

Conclusion

Masahisa Sobue's contributions to silicon nitride technologies exemplify the impact of innovative thinking in materials science. His patents and work at Hitachi Metals, Ltd. continue to influence the industry and pave the way for future advancements.

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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