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For the Inventor, By the Inventor

Yokohama, Japan

Kazuyoshi Negishi

This inventor holds 6 USPTO granted patents. Top assignee: Hitachi, Ltd.. Active years: 1991-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuyoshi Negishi. Retrieved from https://idiyas.com/inventor/kazuyoshi-negishi

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 6

% Patents Active = 83.3

Average Co-Inventor Count = 5.0

ph-index = 6

Forward Citations = 376(Granted Patents)


Company Filing History:

goldMedal6 out of 42,740 
 
Hitachi, Ltd.
 patents

Years Active: 1991-2003

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6 patents (USPTO):Explore Patents
1. 6567806 - System and method for implementing hash-based load-balancing query processing in a multiprocessor database system (2003-05-20),
2. 6556988 - Database management apparatus and query operation therefor, including processing plural database operation requests based on key range of hash code (2003-04-29),
3. 6256621 - Database management system and query operation therefor, including processing plural database operation requests based on key range of hash code (2001-07-03),
4. 6026394 - System and method for implementing parallel operations in a database (2000-02-15),
5. 5806059 - Database management system and method for query process for the same (1998-09-08),
6. 5062046 - Multiple processor system having a correspondence table for transferring (1991-10-29),

Title: Kazuyoshi Negishi: Innovator in Database Management Systems

Introduction

Kazuyoshi Negishi is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of database management systems, holding a total of six patents. His work focuses on enhancing the efficiency and effectiveness of database operations through innovative methodologies.

Latest Patents

Negishi's latest patents include a system and method for implementing hash-based load-balancing query processing in a multiprocessor database system. This invention describes a database management system that executes database operations in parallel across multiple nodes. It features a decision management node that determines the distribution node for retrieving information, analyzes queries from application programs, generates processing procedures, and executes the processes. Additionally, a join node is included for sorting, merging, and joining the information retrieved by the distribution node. The query results are then outputted and transferred to the application program. Another notable patent involves a database management apparatus and query operation that processes multiple database operation requests based on the key range of hash codes, further enhancing the parallel execution of database operations.

Career Highlights

Kazuyoshi Negishi has built a successful career at Hitachi, Ltd., where he continues to innovate in the realm of database technologies. His expertise in parallel processing and query optimization has positioned him as a key figure in the development of advanced database management systems.

Collaborations

Negishi has collaborated with notable colleagues, including Masashi Tsuchida and Yukio Nakano. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Kazuyoshi Negishi's contributions to database management systems exemplify his innovative spirit and dedication to advancing technology. His patents reflect a deep understanding of complex database operations and a commitment to improving efficiency in data processing.

Profile summary based on public USPTO records.
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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