Company Filing History:
Years Active: 2007-2010
Title: Inventor Sachiko Hoshino: Pioneering Innovations in Storage Subsystems
Introduction
Sachiko Hoshino, an accomplished inventor based in Odawara, Japan, has made significant contributions to the field of storage technology. With a total of five patents to her name, Hoshino has been instrumental in developing innovative solutions that enhance the efficiency and management of storage subsystems. Her work focuses on optimizing cache memory and data management processes, benefiting various sectors that rely on efficient data storage systems.
Latest Patents
Hoshino's latest patents include groundbreaking inventions in storage subsystem technology. One of her notable inventions is a method for partitioning a cache region of a storage subsystem for each user. This prevents interference between user-dedicated regions and establishes multiple Cache Logical Partition Regions (CLPR) within the storage subsystem. Each CLPR is designed to allocate management information necessary for overseeing the data stored within the cache memory based on the attributes of the segment or slot. Furthermore, she has implemented a clean queue and clean counter for managing segments in a clean state within each CLPR, while the dirty queue and dirty counter are utilized collectively by all CLPRs.
Another significant patent introduced by Hoshino focuses on a storage system employing a hierarchical directory section and a cache directory section. This invention optimizes cache management by maintaining a constant management region size without compromising performance. Hoshino effectively combines a hierarchical directory method with a hash directory method to manage cache data. By creatively using an EDEV number and a portion of the VDEV number for hash keys, her system responds to increased storage capacity demands without raising management region size or declining performance.
Career Highlights
Hoshino's professional journey is marked by her role as an inventor at Hitachi, Ltd., a leading technology company renowned for its innovative solutions in various domains. Her contributions to storage technology have garnered recognition in the industry, and her patents represent valuable advancements that contribute to Hitachi's reputation for excellence in technology.
Collaborations
Throughout her career, Hoshino has collaborated with notable colleagues including Takashi Sakaguchi and Yasuyuki Nagasoe. These partnerships have played a pivotal role in fostering innovative research and development, driving forward the frontiers of storage technology.
Conclusion
Sachiko Hoshino is an inspiring figure in the realm of storage subsystem innovations. Her patents have set new standards in cache management and data efficiency, showcasing her dedication and expertise in technology. As she continues her work at Hitachi, the impact of her inventions reverberates through numerous applications in data storage, ensuring her legacy as a leading inventor in her field.