Mitsuo Saito

Title: The Innovative Contributions of Mitsuo Saito in Memory Technology

Introduction

Mitsuo Saito, based in Yokosuka, Japan, is a prolific inventor with an impressive portfolio of 29 patents. His work primarily focuses on advancements in memory technology, particularly in the fields of virtual and effective address caching.

Latest Patents

Saito's latest innovations include groundbreaking patents that enhance processor and multiprocessor systems. One such patent, "Virtual Address Cache Memory, Processor and Multiprocessor," describes a sophisticated virtual address cache memory system. This system includes a translation lookaside buffer (TLB) virtual page memory designed to rewrite entry data upon TLB rewrites. It features a data memory that holds cache data indexed by virtual page tags or page offsets, in addition to a cache state memory that tracks cache data states linked with the cache index. Furthermore, this patent introduces first and second physical address memories aimed at effectively managing held physical addresses during the TLB rewrite process.

Another notable patent, "Effective Address Cache Memory, Processor and Effective Address Caching Method," focuses on an effective address cache memory. This innovation comprises a TLB effective page memory that retains entry data with high-order bits of an effective address. It outputs a hit signal when there is a match between effective page tags. The patent also details a data memory holding cache data indexed by effective page tags or page offsets, along with a cache state memory that maintains the conditions of the cache data.

Career Highlights

Mitsuo Saito has made significant contributions to notable companies in the tech industry. He has worked with Toshiba Corporation and Tokyo Shibaura Electric Co., Ltd., where he played a pivotal role in advancing memory technology.

Collaborations

Throughout his career, Saito has collaborated with esteemed colleagues, including Takeshi Aikawa and Kenji Minagawa. These partnerships have undoubtedly contributed to the innovative solutions Saito has developed, further enhancing the capabilities of processor and memory technologies.

Conclusion

Mitsuo Saito’s extensive patent portfolio and his commitment to innovation in virtual and effective address cache memory exemplify his significant impact on the tech industry. His work not only highlights the importance of advancements in processor technology but also positions him as a key figure in the ongoing evolution of memory systems.