Toshihiko Kurihara

Title: The Innovations of Toshihiko Kurihara

Introduction

Toshihiko Kurihara is a prominent inventor based in Hadano, Japan. He has made significant contributions to the field of data processing, holding a total of 11 patents. His work focuses on enhancing the efficiency and performance of data processors through innovative cache memory systems.

Latest Patents

One of Kurihara's latest patents is for a data processor having cache memory. This invention features a first cache memory with a large capacity and one port, alongside a second cache memory with a smaller capacity and two ports. The design allows frequently used data to be stored in the first cache memory, while less frequently used data is managed in the second cache memory under the control of a responsive controller. Additionally, one of the cache memories may be a set associative cache memory, which is composed of multiple memory chips, each containing at least two memory banks. This setup enables consecutive access to data sets within the memory banks.

Another notable patent involves a processing device with prefetch instructions that include indicator bits specifying cache levels for prefetching. This information processing system consists of a main memory and a processing unit that executes prefetch instructions. The prefetch operation allows the processing unit to transfer operand data from the main memory to the first and second level caches before executing subsequent load instructions. This innovation optimizes data retrieval and processing efficiency.

Career Highlights

Toshihiko Kurihara is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies in data processing. His work has significantly impacted the efficiency of data handling in various applications.

Collaborations

Throughout his career, Kurihara has collaborated with notable colleagues, including Kenji Matsubara and Hiromitsu Imori. These partnerships have fostered a creative environment that encourages innovation and the development of advanced technologies.

Conclusion

Toshihiko Kurihara's contributions to the field of data processing through his innovative patents demonstrate his expertise and commitment to advancing technology. His work continues to influence the efficiency of data systems, making a lasting impact on the industry.