Tokyo, Japan

Zempei Kawazu

This inventor holds 17 USPTO granted patents and 2 published patent applications, primarily in Semiconductor Manufacturing. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Corporation. Active years: 1996-2018.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Zempei Kawazu. Retrieved from https://idiyas.com/inventor/zempei-kawazu

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

USPTO Granted Patents = 17 

% Patents Active = 94.1

Average Co-Inventor Count = 3.0

ph-index = 6

Forward Citations = 633(Granted Patents)


Location History:

  • Itami, JP (1996 - 1997)
  • Tokyo, JP (1998 - 2018)

Company Filing History:


Years Active: 1996-2018

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Areas of Expertise:
SiC Epitaxial Wafer
Single-Crystal 4H-SiC
Nitride Semiconductor
Semiconductor Laser
Gallium Nitride
Heteroepitaxial Device
Light Emitting Diode
II-VI Compounds
Infrared Light Detector
Substrate Support
Material Supplying Apparatus
Short Wavelength Laser
17 patents (USPTO):Explore Patents

Title: The Innovations of Zempei Kawazu: A Pioneer in SiC Technology

Introduction: Zempei Kawazu, an accomplished inventor based in Tokyo, Japan, has made significant contributions to the field of semiconductor technology. With a remarkable portfolio of 17 patents, his innovative spirit has propelled advancements in the manufacturing of silicon carbide (SiC) materials, which are critical for various high-performance applications.

Latest Patents: Kawazu's latest patents showcase his expertise in SiC epitaxial growth and substrate development. One notable patent details a method for manufacturing a SiC epitaxial wafer. This method involves a three-step process that includes performing a first epitaxial growth on a SiC bulk substrate, ceasing the gas supply to increase the substrate's temperature, and conducting a second epitaxial growth. Additionally, he has patented a single-crystal 4H-SiC substrate, which features an epitaxial layer with precise recess specifications. This 4H-SiC substrate is designed to enhance performance while maintaining a low defect density, ensuring its effectiveness in various applications.

Career Highlights: Throughout his career, Kawazu has held positions at prominent companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Corporation. His experience in these industry-leading organizations has honed his skills and allowed him to contribute to groundbreaking technologies.

Collaborations: Kawazu has collaborated with esteemed colleagues, including Nobuyuki Tomita and Yoichiro Mitani. These partnerships have facilitated knowledge exchange and innovation, further advancing the field of semiconductor materials.

Conclusion: Zempei Kawazu's inventive mindset and dedication to innovation have significantly impacted the semiconductor industry. With a solid foundation of patents and a wealth of experience, he continues to drive advancements in SiC technology, paving the way for future developments that may revolutionize the sector.

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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