Company Filing History:

9 out of 42,485

Hitachi, Ltd.

patents

1 out of 149

Hitachi Microcomputer Engineering, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1991-2003

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9 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6505257 - Multi-processor system, disk controller using the same and nondisruptive maintenance method thereof (2003-01-07),

2. 6216179 - System for processing an I/O request using an old program while loading a new program which upon completion used to process the I/O request (2001-04-10),

3. 5729761 - System for selecting one cluster of processors and upgrading the version (1998-03-17),

4. 5590272 - Method and system for a high-reliable disk system (1996-12-31),

5. 5404487 - Disc access control method for cache-embedded disc control apparatus (1995-04-04),

6. 5390186 - Method of fault handling for a disk control unit with built-in cache (1995-02-14),

7. 5353422 - Method and system for storing and managing a plurality of information (1994-10-04),

8. 5060090 - Automatic storage system and method for information recording media (1991-10-22),

9. 5053970 - Work scheduling method (1991-10-01),

Title: Kenzo Kurihara: Innovator in Multi-Processor Systems

Introduction

Kenzo Kurihara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of multi-processor systems, holding a total of 9 patents. His work focuses on enhancing the efficiency and reliability of disk controllers through innovative methods.

Latest Patents

Among his latest patents are two notable inventions: a multi-processor system and a disk controller that utilizes a nondisruptive maintenance method. In these inventions, a plurality of processors within a disk controller is organized into clusters. During normal operations, data is transferred between a host computer and a disk drive in a non-restricted processing mode. This allows jobs to be processed across any cluster without limitations. When an operator issues a program version upgrade command, the system transitions to a restricted processing mode. This mode limits the cluster to which processors can belong for distributed job processing. The process involves selecting a cluster for maintenance, upgrading the program versions, and resuming job acceptance once upgrades are complete. This cycle continues until all clusters have been upgraded, after which the system reverts to its non-restricted mode.

Career Highlights

Kenzo Kurihara has worked with notable companies such as Hitachi, Ltd. and Hitachi Microcomputer Engineering, Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in multi-processor systems.

Collaborations

Throughout his career, Kurihara has collaborated with talented individuals, including Tomohiro Murata and Mitsuaki Niida. These partnerships have contributed to the advancement of his inventions and the successful implementation of his ideas.

Conclusion

Kenzo Kurihara's contributions to the field of multi-processor systems and disk controllers demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to improving technology and enhancing system performance.

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