Company Filing History:
1 out of 42,485 
1 out of 3 Years Active: 1989
Title: **Eiji Tatsukawa: An Innovator in Information Processing Technologies**
Introduction
Eiji Tatsukawa, located in Yokohama, Japan, is a notable inventor recognized for his innovative contributions to information processing systems. With one patent to his name, Tatsukawa has demonstrated a keen understanding of data management, particularly in the context of storage systems.
Latest Patents
Tatsukawa's patent is centered on a "Buffer control method for quickly determining whether a required data." This invention is crucial in an information processing method and system that includes both a secondary storage and a primary storage. The method involves consulting a directory that contains control information regarding the data blocks stored in the primary storage. By consulting this directory, the system can determine whether a desired data block resides in primary storage, and if present, it can efficiently read the data block from there. The control information includes pairs of addresses, indicating the locations of data blocks in both primary and secondary storage. This innovation enhances data retrieval efficiency, making it particularly valuable for complex data management systems.
Career Highlights
Eiji Tatsukawa has had a distinguished career, having worked for prominent companies such as Hitachi, Ltd. and Hitachi Computer Consultant Ltd. His roles in these organizations allowed him to work on advanced technologies and contribute to significant innovations in the field of information processing.
Collaborations
Throughout his career, Tatsukawa collaborated with notable professionals like Masami Takahashi and Shunichi Torii. These collaborations not only fostered teamwork but also enhanced the quality and impact of the innovations he was involved in, leading to advancements in the industry.
Conclusion
Eiji Tatsukawa's contributions to information processing through his innovative buffer control method mark him as a key player in his field. His work continues to influence how data is managed and retrieved, showcasing his importance as an inventor in a rapidly evolving technological landscape.
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