Company Filing History:
Years Active: 1989-2002
Title: Seiichi Hannai: Innovator in Semiconductor Technology
Introduction
Seiichi Hannai is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 5 patents. His work focuses on enhancing the performance and reliability of semiconductor devices.
Latest Patents
One of Hannai's latest patents is for a semiconductor integrated circuit device. This device is designed using a DRAM and an SRAM, facilitating data transfer through a data transfer circuit that utilizes data transfer bus lines. The DRAM is divided into at least two arrays, each containing multiple columns of memory cells. The arrangement of these columns is strategically designed to minimize the risk of multiple memory cells being affected by charged particles during simultaneous read operations. This innovation significantly reduces the chances of data corruption in semiconductor devices.
Another notable patent involves a semiconductor memory device that incorporates a shifting circuit. This device features several memory cell sub-arrays that can be selectively used for data storage. The shifting circuit allows for the prioritization of available memory cell sub-arrays, ensuring that defective sub-arrays do not hinder data access. This design enables efficient use of printed circuit boards, even when some memory cell sub-arrays are partially available.
Career Highlights
Seiichi Hannai is currently employed at NEC Corporation, where he continues to push the boundaries of semiconductor technology. His work has been instrumental in developing innovative solutions that address the challenges faced in the semiconductor industry.
Collaborations
Hannai has collaborated with notable colleagues, including Masaki Kawaguchi and Takeo Fujii. Their combined expertise has contributed to the advancement of semiconductor technologies and the successful development of various innovative products.
Conclusion
Seiichi Hannai's contributions to semiconductor technology have established him as a key figure in the field. His innovative patents and collaborative efforts continue to influence the industry, paving the way for future advancements.