Location History:
- Hyogo, JP (1992 - 1996)
- Hyogo-ken, JP (1996 - 1997)
Company Filing History:
8 out of 21,351 
1 out of 5 Years Active: 1992-1997
Title: The Innovations of Inventor Takeo Muragishi
Introduction
Takeo Muragishi is a distinguished inventor based in Hyogo, Japan, celebrated for his contributions to semiconductor technology. With a remarkable portfolio consisting of nine patents, Muragishi has made significant strides in enhancing the functionality and efficiency of thin film transistors used in memory cells.
Latest Patents
Among his notable recent patents is the "Method of Making Semiconductor Device Having Thin Film Transistor." This innovative approach utilizes a thin film transistor as a load transistor within a SRAM memory cell. In his design, a load thin film transistor is strategically placed on an interlayer insulating layer above a silicon substrate, while an oxidation preventing film shields the source/drain regions of the thin film transistor. This advanced fabrication process ensures the structural integrity of the semiconductor device during high-temperature processing.
Another key patent from Muragishi is "Thin Film Transistor with Means to Prevent Threshold Variations." This invention addresses the challenge of threshold voltage instability in thin film transistors. By incorporating a conductive layer that operates in proximity to the semiconductor layer, Muragishi effectively applies an electric field to the channel region. This configuration minimizes fluctuations in threshold voltage, offering improved reliability for semiconductor devices.
Career Highlights
Takeo Muragishi has had a successful career with Mitsubishi Electric Corporation, where he played a pivotal role in various semiconductor projects. His expertise and innovative mindset contributed substantially to advancements in semiconductor technologies during his tenure.
Collaborations
Throughout his career, Muragishi has collaborated with notable professionals in the field, including Eiichi Arima. Together, they have pushed the boundaries of semiconductor innovation, leading to breakthroughs that are now integral to modern electronics.
Conclusion
Takeo Muragishi's contributions to semiconductor technology through his numerous patents establish him as a significant figure in the field of innovation. His work on thin film transistors not only enhances memory devices but also paves the way for future advancements in electronics. As technology continues to evolve, Muragishi's inventions remain crucial in shaping the future of semiconductor applications.