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For the Inventor, By the Inventor

Yokohama, Japan

Hisashi Hashimoto

USPTO Granted Patents = 10

Average Co-Inventor Count = 4.5

ph-index = 9

Forward Citations = 352(Granted Patents)


Company Filing History:

goldMedal10 out of 42,485 
 
Hitachi, Ltd.
 patents

Years Active: 1988-2009

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10 patents (USPTO):Explore Patents
1. 7529885 - Cache control method for node apparatus (2009-05-05),
2. 7051165 - Method and apparatus for a data source device with shared storage for a plurality of clients (2006-05-23),
3. 6792603 - Execution management method of program on reception side of message in distributed processing system (2004-09-14),
4. 6457007 - Distributed database management system including logical database constituted by a group of physical databases (2002-09-24),
5. 6282578 - Execution management method of program on reception side of message in distributed processing system (2001-08-28),
6. 5740170 - Method and apparatus for providing communication between grouped (1998-04-14),
7. 5721904 - Database access system and method of controlling access management to a (1998-02-24),
8. 5361349 - Virtual object management system for managing virtual objects which (1994-11-01),
9. 5025395 - Data processing system capable of executing data processing using (1991-06-18),
10. 4782442 - Time-sharing computer system operable in a host TSS mode and a terminal (1988-11-01),

Title: Hisashi Hashimoto: Innovator in Data Management Technologies

Introduction

Hisashi Hashimoto is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of data management technologies, holding a total of 10 patents. His work focuses on enhancing the efficiency and security of data transmission in computer systems.

Latest Patents

One of Hisashi Hashimoto's latest patents is a cache control method for node apparatus. This invention provides a technique for controlling cache operations on a node device in a computer system. It enables the transmission and receipt of data between clients and a storage device via the node device. The first control method allows the data stored in the storage device to include attribute data indicating whether the data is cacheable. This application enables the node device to relay non-cacheable data without processing it through the cache. The second control method involves encrypting the data when caching it in the disk. The third control method allows non-cacheable data to be transmitted and received directly without going through the node device. These applications restrict the cache in the node device, thereby ensuring enhanced security.

Another significant patent is a method and apparatus for a data source device with shared storage for multiple clients. This technique enhances the reading speed of data from a disk device in a computer system capable of data transmission via a node device. It defines a share volume and specific volumes in the disk device on the storage device. Common data among clients and specific data for individual clients are stored in the share volume and specified volumes, respectively. This application avoids lowering the reading speed, regardless of the concentration of accesses from multiple clients, as most data can be read from the share volume.

Career Highlights

Hisashi Hashimoto is currently employed at Hitachi, Ltd., where he continues to innovate in the field of data management. His work has significantly impacted the efficiency of data handling in various applications.

Collaborations

Hisashi has collaborated with notable coworkers, including Nobuyoshi Andou and Masayuki Orimo, contributing to advancements in their respective fields.

Conclusion

Hisashi Hashimoto's contributions to data management technologies demonstrate his commitment to innovation and security in computer systems. His patents reflect a deep understanding of the challenges in data transmission and provide effective solutions to enhance performance.

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