Funabashi, Japan

Tetsuya Iizuka

This inventor holds 24 USPTO granted patents, primarily in Semiconductor Technology. Top assignees: Tokyo Shibaura Denki Kabushiki Kaisha, Kabushiki Kaisha Toshiba, Microcomputer Engineering Ltd.. Active years: 1979-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuya Iizuka. Retrieved from https://idiyas.com/inventor/tetsuya-iizuka-eebtz5r8

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 = 1.6

ph-index = 13

Forward Citations = 398(Granted Patents)


Location History:

  • Chiba, JP (1986)
  • Kawasaki, JP (1979 - 1987)
  • Funabashi, JP (1985 - 1989)

Company Filing History:


Years Active: 1979-1989

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Areas of Expertise:
MOS Semiconductor
Static Memory
Dynamic RAM
Power-Saving Voltage Supply
Floating Gate EEPROM
CMOS Circuit
Self-Refresh Control
Negative Resistance Device
Flip-Flop Circuit
Memory Devices
Transistor Technology
24 patents (USPTO):Explore Patents

Title: **Innovative Contributions of Tetsuya Iizuka in Semiconductor Technology**

Introduction

Tetsuya Iizuka, a prominent inventor based in Funabashi, Japan, has made significant strides in the field of semiconductor technology. With an impressive portfolio of 24 patents, his innovations have paved the way for advancements in integrated circuits and memory systems.

Latest Patents

Among his latest inventions, Iizuka has developed a MOS semiconductor integrated circuit designed to mitigate issues related to hot carriers. This innovative circuit features a signal output terminal and a load circuit connected to it, including a transistor circuit comprising at least one first channel MOS transistor. The invention aims to achieve high reliability by preventing characteristic deterioration when utilizing short channel MOS transistors with an effective channel length of approximately one micron or less. Additionally, his patent on static memory with a pull-up circuit enhances the read-out speed by optimizing the threshold voltage of MOS transistors, ensuring minimal current flow during read operations.

Career Highlights

Iizuka has held positions at respected companies including Tokyo Shibaura Denki and Toshiba Corporation. His work at these organizations has significantly influenced the technology landscape, particularly in the development of semiconductor components.

Collaborations

Throughout his career, Tetsuya has collaborated with notable professionals in the field, including Takayasu Sakurai and Takayuki Ohtani. These collaborations have fostered an environment of innovation and have contributed to the success of his projects.

Conclusion

Tetsuya Iizuka stands out as a key figure in the realm of semiconductor technology. His inventions, backed by a solid foundation in research and collaboration with other experts, continue to shape the future of electronic devices, underscoring the importance of innovation in this rapidly evolving industry.

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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