This inventor holds 11 USPTO granted patents. Top assignees: Sony Corporation, Sanyo Electric Co., Ltd., Other. Active years: 1998-2014.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Tokyo, JP (2000 - 2001)
- Kanagawa, JP (1998 - 2014)
Company Filing History:

Years Active: 1998-2014
Title: Yasushi Shimogaichi: Innovator in Thin Film Semiconductor Technology
Introduction
Yasushi Shimogaichi is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 11 patents. His work primarily focuses on thin film semiconductor devices, which are crucial for modern electronic applications.
Latest Patents
One of Yasushi Shimogaichi's latest patents is for a thin film semiconductor device and a display device utilizing such technology. This invention involves the formation of integrated circuits on an insulating substrate using bottom gate type thin film transistors. The design includes gate electrodes made from metallic materials with a thickness of less than 100 nm, and a gate insulating film that is thicker than the gate electrodes. The semiconductor thin film consists of polycrystalline silicon that has been crystallized using a laser beam. By minimizing the thickness of the metallic gate electrodes, the thermal capacity is reduced, leading to a more uniform thermal condition between the electrodes and the insulating substrate. This innovation aims to optimize recrystallization through a laser anneal treatment for the semiconductor thin film, which serves as the active layer in the bottom gate type thin film transistors.
Career Highlights
Yasushi Shimogaichi has had a distinguished career, working with notable companies such as Sony Corporation. His expertise in semiconductor technology has positioned him as a key figure in the development of advanced electronic devices.
Collaborations
Throughout his career, Yasushi has collaborated with talented individuals, including Hisao Hayashi and Makoto Takatoku. These partnerships have contributed to the success of his innovative projects.
Conclusion
Yasushi Shimogaichi's contributions to thin film semiconductor technology have had a lasting impact on the electronics industry. His innovative patents and collaborations highlight his role as a leading inventor in this field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile