This inventor holds 15 USPTO granted patents and 1 published patent application. Top assignees: Elpida Memory, Inc., Hitachi, Ltd., Hitachi Device Engineering Co., Ltd.. Active years: 1991-2014.
Location History:
- Asaka, JP (1991 - 2004)
- Tokyo, JP (2005 - 2014)
Company Filing History:
9 out of 1,458 
5 out of 42,719 
1 out of 217 
Years Active: 1991-2014
Title: Yoji Idei: Innovator in Semiconductor Technology
Introduction
Yoji Idei is a prominent inventor based in Tokyo, Japan, known for his significant contributions to semiconductor technology. With a remarkable portfolio of 15 patents, he has demonstrated a strong commitment to advancing the field through innovative designs and solutions.
Latest Patents
Among his latest inventions, Idei has developed a semiconductor device featuring a level shift circuit. This design incorporates two level shift circuits with nearly identical configurations, an input circuit that provides complementary input signals, and an output circuit that converts these output signals into in-phase signals before short-circuiting them. This innovation effectively minimizes the risk of current flow discrepancies due to variances in operating speed between the circuits. Another notable patent from Idei is a semiconductor device equipped with a sense amplifier. This device consists of a first driver circuit supplying power to a sense amplifier's power supply node, complemented by additional driver circuits and a timing control circuit that manages their operation. The timing control incorporates dual delay circuits that optimize performance based on external power supply variations.
Career Highlights
Yoji Idei has had an illustrious career, having worked with esteemed companies such as Elpida Memory, Inc. and Hitachi, Ltd. His experience in these organizations has undoubtedly played a vital role in shaping his innovative mindset and technical expertise.
Collaborations
Throughout his career, Idei has collaborated with notable colleagues, including Kazuhiro Teramoto and Goro Kitsukawa. These collaborations have provided a platform for sharing ideas and fostering innovation in semiconductor technologies.
Conclusion
Yoji Idei's contributions to the semiconductor industry highlight the importance of innovation in driving technological advancement. With a substantial number of patents to his name and a proven track record in reputable companies, Idei continues to be a pivotal figure in the world of semiconductor inventions, paving the way for future technological breakthroughs.