Kawasaki, Japan

Wataru Yokozeki

This inventor holds 21 USPTO granted patents, primarily in Semiconductor Memory. Top assignees: Fujitsu Corporation, Fujitsu Microelectronics Limited. Active years: 2001-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Wataru Yokozeki. Retrieved from https://idiyas.com/inventor/wataru-yokozeki

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


% Patents Active = 76.2

Average Co-Inventor Count = 1.4

ph-index = 8

Forward Citations = 466(Granted Patents)


Location History:

  • Kanagawa, JP (2001)
  • Kunitachi, JP (2003 - 2006)
  • Kawasaki, JP (2002 - 2009)

Company Filing History:


Years Active: 2001-2009

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Areas of Expertise:
Digital PLL Circuit
Ferroelectric Capacitors
Programmable Logic Device
Multi-Threshold-Voltage
Nonvolatile Memory
High-Speed Output Latch
Static RAM
Sense Amplifier
Address Generating Circuit
Signal Propagation
Operation Margin
Integrated Circuit
21 patents (USPTO):Explore Patents

Title: Wataru Yokozeki: Innovator in Semiconductor Technology

Introduction: Wataru Yokozeki is a renowned inventor based in Kawasaki, Japan, known for his significant contributions to the field of semiconductor technology. With a total of 21 patents to his name, Yokozeki has made remarkable advancements that enhance the performance and efficiency of digital circuits and memory devices.

Latest Patents: Among his latest innovations, the "Digital PLL Circuit" stands out. This invention utilizes a frequency comparator that compares the frequencies of a reference clock and an output clock, generating a frequency comparison signal. A complex frequency variable circuit designed with multiple inverting circuits and a selection mechanism allows for precise feedback signals to be utilized in a delay circuit. Equally impressive is his patent for a "Semiconductor Memory Device" that accelerates operational speeds. This device employs multiplexers to select memory cells efficiently and utilizes NAND elements and transistors to optimize memory functionality and data retrieval processes.

Career Highlights: Wataru Yokozeki has had a distinguished career working with major companies such as Fujitsu Corporation and Fujitsu Microelectronics Limited. His work has significantly impacted the landscape of semiconductor technology, establishing a legacy of innovation and excellence.

Collaborations: Throughout his career, Yokozeki has worked alongside notable colleagues, including Hiroshi Shimizu and Shoichi Masui. Their collaborations have fostered advancements in technology that are widely recognized in the industry.

Conclusion: Wataru Yokozeki's extensive patent portfolio and impactful career illustrate his role as a leading figure in semiconductor innovation. His inventions continue to shape the future of digital and memory technologies, establishing him as a valuable asset to the field and a source of inspiration for future inventors.

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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