This inventor holds 1 USPTO granted patent. Top assignee: Kabushiki Kaisha Toshiba. Active years: 1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1993
Title: Yasunori Kuwashima: Innovator in Semiconductor Memory Technology
Introduction
Yasunori Kuwashima is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of semiconductor memory technology. His innovative work has led to the development of a unique semiconductor memory circuit apparatus.
Latest Patents
Kuwashima holds a patent for a semiconductor memory circuit apparatus. This invention involves a random access memory (RAM) array that features a dummy word line designed to mimic the pattern of the word lines used for RAM cells. The apparatus includes a transistor with matching channel width and length to those in the RAM cells, which is connected to the dummy word line. An inverter is created using three transistors, including the one linked to the dummy word line, with its output connected to a capacitor. The capacitor's capacitance is calibrated to be close to that of the bus line of the RAM, ensuring that the dummy word line and the RAM circuits maintain the same transfer delay. This design allows for the potential at the inverter's output to be influenced by the capacitance difference, which can then be utilized as a drive signal for a sense amplifier that reads the RAM cells. Additionally, the signal from the dummy word line can serve as a precharge signal.
Career Highlights
Kuwashima is associated with Kabushiki Kaisha Toshiba, a leading company in the technology sector. His work has been instrumental in advancing memory circuit technology, showcasing his expertise and innovative thinking.
Collaborations
He has collaborated with notable coworkers, including Hiroyuki Motegi and Hideaki Uchida. Their combined efforts have contributed to the success of various projects within the semiconductor field.
Conclusion
Yasunori Kuwashima's contributions to semiconductor memory technology highlight his role as an influential inventor. His patent for a semiconductor memory circuit apparatus demonstrates his innovative approach to solving complex challenges in the field.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile