Inventors with similar research interests:
Location History:
- Kokubunji, JA (1976)
- Ohminami-Musashimurayama, JP (1987)
- Murashimurayama, JP (1984 - 1992)
- Tokyo, JP (1989 - 1994)
- Musashimimurayama, JP (1996)
- Musashimurayama, JP (1983 - 2005)
Company Filing History:
58 out of 42,485 
3 out of 182 
2 out of 1,112 
Years Active: 1976-2005
Title: The Innovations of Katsuhiro Shimohigashi
Introduction
Katsuhiro Shimohigashi, hailing from Musashimurayama, Japan, is a prominent inventor recognized for his significant contributions to the field of semiconductor technology. With an impressive portfolio of 60 patents, Shimohigashi has played a vital role in advancing semiconductor memory devices, particularly in developing solutions that enhance their functionality.
Latest Patents
One of his noteworthy inventions is a semiconductor memory device designed to prevent the invasion of minority carriers from the semiconductor substrate into the device components. This innovative approach can apply to various types of memory devices, such as SRAM and DRAM. The device features a memory array alongside a peripheral circuit on a substrate. Notably, Shimohigashi's invention includes a buried layer of the same conductivity type as the substrate but with a higher impurity concentration, acting as a shield against minority carriers. Additional carrier absorbing areas and isolation regions are also integrated into the design, further enhancing the device's efficiency and protecting its components.
Career Highlights
Throughout his career, Katsuhiro Shimohigashi has worked with leading organizations in the semiconductor industry, including Hitachi, Ltd. and Hitachi VLSI Engineering Corporation. His tenure at these companies has allowed him to collaborate on groundbreaking semiconductor technologies and further refine his expertise in memory devices.
Collaborations
In his professional journey, Shimohigashi has had the pleasure of collaborating with esteemed engineers and inventors, among whom are Hiroo Masuda and Kunihiko Ikuzaki. These partnerships have fostered an environment of innovation and have contributed to the success of various projects within the semiconductor sector.
Conclusion
Katsuhiro Shimohigashi's contributions to semiconductor technology, reflected in his numerous patents, showcase his commitment to innovation. His work not only enhances the performance of memory devices but also underscores the importance of collaboration within the technology field. As the semiconductor industry continues to evolve, Shimohigashi's inventions will undoubtedly leave a lasting impact on the future of memory technology.
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