Koganei, Japan

Itaru Nishizawa

This inventor holds 28 USPTO granted patents and 4 published patent applications, primarily in Stream Data Processing. Top assignee: Hitachi, Ltd.. Active years: 1999-2016.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Itaru Nishizawa. Retrieved from https://idiyas.com/inventor/itaru-nishizawa

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

USPTO Granted Patents = 28 

% Patents Active = 50.0

Average Co-Inventor Count = 3.3

ph-index = 12

Forward Citations = 925(Granted Patents)


Location History:

  • Hachioji, JP (1999)
  • Kodaira, JP (2002 - 2007)
  • Kaganei, JP (2011)
  • Koganei, JP (2004 - 2016)

Company Filing History:


Years Active: 1999-2016

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Areas of Expertise:
Stream Data Processing
Query Processing
Distributed Systems
Data Integration
Ranking Mechanism
Database Access
Data Warehousing
Remote File Access
Negative Item Mining
Application Servers
Memory Control
Duplicate Removal
28 patents (USPTO):Explore Patents

Title: Innovations of Itaru Nishizawa: Pioneering Stream Data Processing

Introduction: Itaru Nishizawa is a prominent inventor located in Koganei, Japan. He has an impressive portfolio of 28 patents, showcasing his contributions to the field of technology, particularly in data processing. His work focuses on innovative methods for handling stream data, making him a key player in the technological advancements at Hitachi, Ltd.

Latest Patents: One of Nishizawa's latest patents is titled "Method for processing stream data and system thereof." This innovative method describes how a network interface receives stream data, which a processor then processes through several steps. The processor constructs an operator graph based on a query, assigns an execution order to numerous operators, and efficiently manages data processing by maintaining timestamps for the earliest data. This meticulous approach enhances the effectiveness of stream data processing systems.

Career Highlights: Nishizawa's career is marked by his valuable contributions to Hitachi, Ltd. His advancements in stream data processing not only exemplify his technical expertise but also reflect the commitment of Hitachi to innovation and excellence in technology. With a wealth of patents, Nishizawa continues to advance the capabilities of modern data processing systems.

Collaborations: Throughout his career, Itaru Nishizawa has had the opportunity to collaborate with talented individuals, including his coworkers Tsuneyuki Imaki and Toshihiko Kashiyama. These collaborations enhance the innovative potential of his projects, combining diverse expertise and pushing the boundaries of technology.

Conclusion: Itaru Nishizawa stands out as a visionary inventor whose work in stream data processing has significantly impacted the technology landscape. Through his innovative patents and collaborations at Hitachi, Ltd., he continues to contribute to the evolution of data handling techniques, paving the way for future advancements in this critical field.

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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