Naka, Japan

Takanobu Ichihara

This inventor holds 30 USPTO granted patents and 4 EPO patents, primarily in Engine Control Systems. Top assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd., Hitachi Car Engineering Co., Ltd.. Active years: 1992-2013.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takanobu Ichihara. Retrieved from https://idiyas.com/inventor/takanobu-ichihara

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


% Patents Active = 43.3

 

Average Co-Inventor Count = 4.2

ph-index = 10

Forward Citations = 273(Granted Patents)


Location History:

  • Katsuta, JP (1992 - 1994)
  • Hitachinaka, JP (1998 - 2007)
  • Naka, JP (2009 - 2013)
  • Tsuchiura, JP (2012 - 2013)

Company Filing History:


Years Active: 1992-2013

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Areas of Expertise:
Fuel Injection
Engine Controller
EGR Control
Combustion Detection
Air Flow Control
Knock Detection
Fuel Supply System
Multi-Cylinder Engine
Diagnostic Apparatus
Variable Valve Lifter
Exhaust Filtration
30 patents (USPTO):Explore Patents

Title: Takanobu Ichihara: Innovating Engine Control Technologies

Introduction

Takanobu Ichihara, a prominent inventor located in Naka, Japan, has made significant contributions to the field of automotive engineering. With a remarkable portfolio of 30 patents, Ichihara has been instrumental in developing advanced engine control technologies that enhance vehicle performance and efficiency.

Latest Patents

Among his latest innovations are two patents revolving around engine control systems. The first patent details a control apparatus designed to manage intake air flow, fuel injection amount, and ignition timing for each cylinder of a multi-cylinder engine. This sophisticated apparatus includes a unit for calculating the mean value of angular acceleration for each cylinder, a unit for determining the variance, and additional units for estimating torque and optimizing the air/fuel ratio. This innovation aims to improve engine efficiency and performance significantly.

The second patent describes a control device for engines capable of purifying nitrogen oxides (NOx) with high efficiency during restarts after an idle stop. This technology focuses on controlling the air-fuel ratio to ensure optimal purification of hydrocarbon (HC) and carbon monoxide (CO) emissions. The device estimates catalyst atmosphere and adjusts the air-fuel ratio for subsequent restarts, thereby improving environmental performance.

Career Highlights

Takanobu Ichihara's career spans notable accomplishments in the automotive sector. He has collaborated with distinguished companies, including Hitachi, Ltd., where he has honed his expertise in engine technologies and control systems. His work is characterized by a commitment to innovation and sustainable engineering solutions.

Collaborations

Ichihara has collaborated with several talented individuals in the field, including Kazuhiko Kanetoshi and Kozo Katogi. These partnerships have enabled the exchange of ideas and knowledge, fostering advancements in engine control technologies.

Conclusion

Takanobu Ichihara's contributions to the automotive industry illustrate the importance of innovation in enhancing engine performance and environmental sustainability. His extensive patent portfolio underscores his role as a leading inventor, committed to developing cutting-edge technologies that address contemporary automotive challenges.

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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