Hitachi, Japan

Katsunori Azuma

This inventor holds 18 USPTO granted patents and 4 published patent applications and 8 EPO patents. Top assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd., Hitachi Medical Corporation. Active years: 2005-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsunori Azuma. Retrieved from https://idiyas.com/inventor/katsunori-azuma

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

USPTO Granted Patents = 18 

% Patents Active = 44.4

 

Average Co-Inventor Count = 3.6

ph-index = 9

Forward Citations = 202(Granted Patents)


Location History:

  • Chiyoda-ku, JP (2008 - 2010)
  • Hitachi, JP (2005 - 2015)

Company Filing History:


Years Active: 2005-2015

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18 patents (USPTO):Explore Patents

Title: Innovations of Katsunori Azuma

Introduction

Katsunori Azuma is a prominent inventor based in Hitachi, Japan. He has made significant contributions to the field of power semiconductor technology, holding a total of 18 patents. His work focuses on enhancing the reliability and efficiency of power devices, which are crucial in various electronic applications.

Latest Patents

Among his latest patents is a power semiconductor module that features a unique configuration of main electrodes for semiconductor switching elements, such as IGBTs. This design effectively suppresses the occurrence of resonant voltage due to junction capacity and parasitic inductance. Another notable patent is for a power device that improves reliability when the parallel number of semiconductor devices increases. This device ensures that the collector and emitter electrode joint regions are strategically positioned to enhance performance.

Career Highlights

Katsunori Azuma has worked with esteemed companies, including Hitachi, Ltd. and Hitachi Automotive Systems, Ltd. His experience in these organizations has allowed him to develop innovative solutions that address the challenges faced in the semiconductor industry.

Collaborations

Throughout his career, Azuma has collaborated with notable colleagues, including Mutsuhiro Mori and Masamitsu Inaba. These partnerships have contributed to the advancement of technology in their respective fields.

Conclusion

Katsunori Azuma's contributions to power semiconductor technology are noteworthy, with a focus on improving device reliability and efficiency. His innovative patents and collaborations reflect his commitment to advancing the field.

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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