Company Filing History:
Years Active: 1997-2002
Title: Shigeko Hashimoto – A Pioneer in Multiprocessor Synchronization Systems
Introduction
Shigeko Hashimoto, an accomplished inventor based in Hadano, Japan, has made significant contributions to the field of multiprocessor synchronization and coherency control systems. With a total of four patents granted, her innovative work has been instrumental in enhancing the performance and reliability of multiprocessor systems.
Latest Patents
Hashimoto's latest patents include:
1. **Multiprocessor Synchronization and Coherency Control System**: This patent details a shared main memory type multiprocessor utilizing a switch connection type. The system prepares instructions for outputting synchronization transactions, ensuring that all preceding transactions are completed before outputting the synchronization transaction. This innovative approach allows for the serialization of memory accesses while guaranteeing completion of cache coherence control.
2. **Parallel Processor Synchronization and Coherency Control Method and System**: In this invention, each processor in a multiprocessor system is equipped with a circuit that sends synchronizing signals to a connected storage controller upon executing specific synchronization instructions. The system ensures that synchronization is established only after confirming completion of necessary checks and issuing cache cancel requests. This method enhances the coordination among processors while effectively managing synchronization.
Career Highlights
Shigeko Hashimoto is currently employed at Hitachi, Ltd., where she continues to drive innovation in her field. Her work not only highlights her expertise but also reflects the commitment of Hitachi to advancing technology in multiprocessor systems.
Collaborations
Throughout her career, Hashimoto has collaborated with esteemed colleagues such as Tadaaki Isobe and Naonobu Sukegawa. These collaborations have fostered a productive environment that encourages the exchange of ideas and advancements in technology.
Conclusion
Shigeko Hashimoto's contributions to multiprocessor synchronization and coherency control have paved the way for significant advancements in computing technology. Her innovative patents stand as a testament to her skills and dedication as an inventor, making her a notable figure in the field of engineering and technology.