Toyota, Japan

Nobuyuki Nagashima

This inventor holds 5 USPTO granted patents and 1 EPO patent. Top assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Aw Co., Ltd., Kabushiki Kaisha Toyota Chuo Kenkyusho. Active years: 1997-2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuyuki Nagashima. Retrieved from https://idiyas.com/inventor/nobuyuki-nagashima

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


% Patents Active = 80.0


Average Co-Inventor Count = 6.9

ph-index = 5

Forward Citations = 146(Granted Patents)


Location History:

  • Susono, JP (2001 - 2003)
  • Toyota, JP (1997 - 2009)

Company Filing History:


Years Active: 1997-2009

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5 patents (USPTO):Explore Patents

Title: Nobuyuki Nagashima: Innovator in Hydraulic Systems

Introduction

Nobuyuki Nagashima is a prominent inventor based in Toyota, Japan, known for his contributions to hydraulic systems in vehicles. With a total of five patents to his name, he has made significant advancements in the field of automotive engineering.

Latest Patents

Nagashima's latest patents include a hydraulic circuit device and a hybrid drive system utilizing that hydraulic circuit device. This innovative design features drain holes arranged in positions offset from valve holes of a valve body. The drain holes are designed with a long chimney-shaped space, which minimizes the likelihood of insulation material from an electric motor entering the drain chambers through the drain holes. Another notable patent is a hydraulic control apparatus for vehicles, which incorporates a first hydraulic pump and a second hydraulic pump mounted on both ends of a rotary shaft in an electric motor. This configuration allows both pumps to be driven by a single electric motor, optimizing power consumption while ensuring sufficient working fluids for independent hydraulic control circuits.

Career Highlights

Throughout his career, Nagashima has worked with notable companies such as Toyota Motor Corporation and Aisin Aw Co., Ltd. His work has focused on enhancing the efficiency and functionality of hydraulic systems in modern vehicles.

Collaborations

Nagashima has collaborated with esteemed colleagues, including Mitsuhiro Umeyama and Yuji Iwase, contributing to the development of innovative automotive technologies.

Conclusion

Nobuyuki Nagashima's contributions to hydraulic systems have significantly impacted the automotive industry. His innovative patents reflect his commitment to advancing vehicle technology and improving efficiency.

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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