Location History:
- Yokohama, JA (1978)
- Yokohama, JP (1979 - 1994)
Company Filing History:
4 out of 681 
2 out of 52,789 
Years Active: 1978-1994
Title: **Keiji Namimoto: Innovator in Memory and Data Processing Technologies**
Introduction
Keiji Namimoto is a notable inventor based in Yokohama, Japan, recognized for his contributions to memory and data processing technologies. With a portfolio that includes six patents, Namimoto has developed innovations that enhance the speed and efficiency of data handling in modern computing systems.
Latest Patents
Among his latest patents is the development of a **dual port memory having an address conversion function**. This innovative device features two input/output ports, each equipped with address circuits that utilize distinct coordinate conversion tables. As a result, the dual port memory can promptly respond to access signals generated on various coordinates, making it particularly well-suited for applications in graphics processing that demand high-speed memory access.
Another significant patent pertains to a **multiple processor data processing system with processors of varying types**. This system is designed with an array of different microprocessors, a memory bus, and a memory connected to these microprocessors via the bus. A key aspect of the control circuit is its selectivity, which allows one microprocessor to be activated based on a selection controller, thereby managing rest mode signals for the other processors. This design optimizes system efficiency and performance.
Career Highlights
Keiji Namimoto's career includes tenures at renowned companies such as Tokyo Shibaura Electric Co., Ltd. and Toshiba Corporation. His work at these influential firms has played a pivotal role in shaping modern electronic and computing technologies.
Collaborations
Throughout his career, Namimoto has collaborated with esteemed professionals in the field, including Seiji Eguchi and Yutaka Murao. These joint efforts have fostered innovation and propelled advancements within the technology sector.
Conclusion
In conclusion, Keiji Namimoto has made significant strides in the realm of memory and data processing technologies through his inventive spirit and technical expertise. His contributions continue to shape the landscape of computing, paving the way for future advancements in the field.