Hitachinaka, Japan

Naoki Saito

This inventor holds 23 USPTO granted patents and 5 EPO patents, primarily in Flow Measurement Devices. Top assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd., Hitachi Automotive Systems, Ltd.. Active years: 2001-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Naoki Saito. Retrieved from https://idiyas.com/inventor/naoki-saito-lxhct4dy

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

Calculating rank

% Patents Active = 78.3


Average Co-Inventor Count = 4.9

ph-index = 5

Forward Citations = 62(Granted Patents)


Location History:

  • Tokai-mura, JP (2004 - 2008)
  • Ibaraki-ken, JP (2006 - 2010)
  • Tokai, JP (2001 - 2013)
  • Ibaraki, JP (2006 - 2020)
  • Hitachinaka, JP (2019 - 2023)

Company Filing History:


Years Active: 2001-2025

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Areas of Expertise:
Flow Measurement
Thermal Flowmeter
Air Flow Rate
Physical Quantity Detection
Gas Flow Rate
Measurement Apparatus
Heating Resistor
Dust Particle Diverting
Equipment for Measuring
Inclined Passage
Auxiliary Passage
Motorcar Sensor
23 patents (USPTO):Explore Patents

Title: Naoki Saito: Innovator in Flow Rate Measurement Technology

Introduction: Naoki Saito, a notable inventor based in Hitachinaka, Japan, has made significant contributions to the field of flow measurement technology. With an impressive portfolio of 22 patents, Saito’s work reflects his dedication to enhancing measurement accuracy and noise performance in various devices.

Latest Patents: Among Saito's latest innovations are two key patents that demonstrate his expertise. The first patent is a flow rate measurement device aimed at improving measurement accuracy. This device features a unique structure with three voids: a first void formed by the support body and circuit board, a second void between the circuit board and housing, and a third void created by the support body and cover. This innovative design contributes to better measurement outcomes.

The second patent is for a physical quantity detection device, which significantly enhances the noise performance of a flow rate detection unit compared to traditional designs. This device incorporates a plate-like chip package that protrudes from the gas measurement flow path, containing features such as a flow rate detection unit, an accelerating flow path, and both a measurement and non-measurement surface. The design includes a separation flow portion, effectively managing the flow paths to maximize measurement accuracy.

Career Highlights: Naoki Saito’s career includes valuable experience in reputable organizations such as Hitachi, Ltd. and Hitachi Car Engineering Co., Ltd. His work at these companies has allowed him to develop cutting-edge technologies and work collaboratively on various innovative projects.

Collaborations: Throughout his career, Saito has collaborated with talented professionals like Masayuki Kozawa and Shinya Igarashi. These partnerships have contributed to the advancement of his projects and have fostered an environment of innovation, leading to the development of remarkable technologies in measurement devices.

Conclusion: Naoki Saito stands out as a prolific inventor whose patents continue to influence the landscape of flow measurement technology. His commitment to improving device performance ensures that his contributions will remain significant in both industrial and research settings. With his innovative spirit and collaborative efforts, Saito exemplifies the qualities of a forward-thinking inventor dedicated to advancing technology.

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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