This inventor holds 4 USPTO granted patents. Top assignee: Fujitsu Corporation. Active years: 1996-2007.
Company Filing History:
Years Active: 1996-2007
Title: Innovations by Masaya Kitagawa
Introduction
Masaya Kitagawa is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on enhancing the functionality and reliability of semiconductor devices.
Latest Patents
Kitagawa's latest patents include a semiconductor device and a skew adjusting method. This invention involves dividing function circuits composing one function macro and mounting them on multiple chips. It generates plural internal clock signals with different phases based on a reference clock signal. The phase of the clock signal supplied to the function circuits is adjusted based on test operation results, allowing for the selection of an optimal clock signal phase. This innovation effectively adjusts skew generated by dividing circuits into multiple chips, ensuring proper operation of the circuits as a whole.
Another notable patent is a self-diagnosable semiconductor memory device featuring a redundant circuit. This invention simplifies the memory test process for detecting defective memory cells. It includes a normal memory portion, a redundant circuit for replacing defective cells, and a self-diagnostic circuit. The device also features a defective cell position storage circuit that stores information about defective memory cells, converting this data into serial output for easy identification and replacement.
Career Highlights
Masaya Kitagawa is currently employed at Fujitsu Corporation, where he continues to innovate in semiconductor technology. His work has significantly impacted the efficiency and reliability of semiconductor devices, making him a valuable asset to the company.
Collaborations
Kitagawa has collaborated with notable colleagues such as Shigeru Fujii and Kuniyuki Hayashi. Their combined expertise has contributed to the advancement of semiconductor technologies.
Conclusion
Masaya Kitagawa's contributions to semiconductor technology through his innovative patents demonstrate his commitment to enhancing device functionality and reliability. His work continues to influence the industry positively.