Mobara, Japan

Kazuo Umeyama

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi, Ltd.. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Umeyama. Retrieved from https://idiyas.com/inventor/kazuo-umeyama

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Kazuo Umeyama: Innovator in Magnetic Bubble Memory Technology

Introduction

Kazuo Umeyama is a notable inventor based in Mobara, Japan. He has made significant contributions to the field of memory devices, particularly through his innovative work on magnetic bubble memory technology. His expertise and inventions have had a lasting impact on the industry.

Latest Patents

Umeyama holds a patent for magnetic bubble memory devices. This invention involves a design where positive signal lines interconnect a magnetic bubble memory chip, which is centrally located on an insulating substrate. The lead pins at the end of the substrate are surrounded by multiple grounded conductors. This configuration serves to shield the positive signal lines, effectively reducing noise that may be induced by voltage drops across coils that generate the rotating magnetic field. He has 1 patent to his name.

Career Highlights

Kazuo Umeyama has had a distinguished career at Hitachi, Ltd., where he has been able to apply his innovative ideas and technical skills. His work has contributed to advancements in memory technology, showcasing his ability to blend theoretical knowledge with practical applications.

Collaborations

Umeyama has collaborated with notable colleagues, including Hirofumi Ohta and Toshio Futami. These partnerships have allowed for the exchange of ideas and have furthered the development of cutting-edge technologies in their field.

Conclusion

Kazuo Umeyama's contributions to magnetic bubble memory devices highlight his role as a key innovator in the technology sector. His work continues to influence advancements in memory technology, demonstrating the importance of innovation in driving progress.

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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