Sakoh Ishikawa

Title: **Innovative Contributions of Sakoh Ishikawa in Multiprocessor Systems and Clock Signal Adjustment**

Introduction

Sakoh Ishikawa, an accomplished inventor based in Hadano, Japan, has made significant strides in the field of computer engineering with his innovative patents. With two patents to his name, he has showcased his expertise in developing advanced technologies that enhance system performance and efficiency.

Latest Patents

Sakoh Ishikawa's latest patents reflect his dedication to improving multiprocessor systems and electronic apparatus. The first patent, titled *Multiprocessor system having controller for controlling the number of processors for which cache coherency must be guaranteed*, addresses the challenges of data consistency among caches in large-scale multiprocessor systems. This invention introduces a translation lookaside buffer that retains cache coherency attribute information, allowing for limited cache coherent areas. As a result, the system can significantly reduce processor-to-processor communications while executing high-speed operations.

His second patent, *Method and apparatus for adjusting clock signal of electronic apparatus*, involves a novel approach to clock signal adjustment. This innovation detects when the temperature of devices within an electronic apparatus reaches a saturation state and executes a phase adjustment of the clock signal accordingly. After the adjustment, the state is fixed, ensuring optimal performance and reliability of the electronic device.

Career Highlights

Sakoh Ishikawa works for Hitachi, Ltd., a leading company in technological innovations. His contributions not only underline his technical prowess but also the commitment of Hitachi to advancing computing technology. Through his work, he has been instrumental in developing systems that support efficient processing and data management.

Collaborations

Throughout his career, Sakoh Ishikawa has collaborated with notable colleagues, including Michio Morioka and Kenichi Kurosawa. These collaborations have undoubtedly contributed to the depth and impact of his inventions, fostering an environment of innovation and teamwork.

Conclusion

In conclusion, Sakoh Ishikawa exemplifies the role of an innovative inventor who has significantly contributed to advancements in multiprocessor systems and electronic apparatus. His patents not only showcase his technical skills but also reflect his commitment to enhancing technology in a rapidly evolving world. As the demand for efficient processing and data management grows, the impact of Ishikawa's work will continue to be felt in the industry.