Hiroshima, Japan

Narihito Hongawara

This inventor holds 9 USPTO granted patents and 1 published patent application and 1 EPO patent. Top assignee: Mazda Motor Corporation. Active years: 2012-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Narihito Hongawara. Retrieved from https://idiyas.com/inventor/narihito-hongawara

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

Calculating rank
USPTO Granted Patents = 9 

% Patents Active = 44.4

 

Average Co-Inventor Count = 5.2

ph-index = 2

Forward Citations = 19(Granted Patents)


Location History:

  • Hiroshima, JP (2012 - 2021)
  • Aki-gun, JP (2023)

Company Filing History:


Years Active: 2012-2023

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9 patents (USPTO):Explore Patents

Title: The Innovative Contributions of Narihito Hongawara

Introduction

Narihito Hongawara is a prominent inventor based in Hiroshima, Japan, known for his significant contributions to automotive technology. With a remarkable portfolio of nine patents, Narihito's innovations demonstrate his commitment to enhancing vehicle performance and efficiency.

Latest Patents

Among his latest patents, a notable invention is the "Powertrain Device for Vehicle." This device ingeniously integrates an engine with an automatic transmission, featuring several friction fastening elements that facilitate the selective switching of motive power transmitting paths. One key aspect of this invention is the inclusion of a travel-start friction fastening element, designed to perform slip control during vehicle start-up. Furthermore, the powertrain device incorporates a motive power connection-disconnection clutch, which is disengaged at least during engine start and engages ahead of the travel-start friction fastening element during vehicle initialization.

Another significant patent is the "Power Train Device of Vehicle," which elaborates on an automatic transmission system. This system is designed so that in a neutral state, various rotary elements forming a power transmission path are kept in a non-restraining state, optimizing the performance of the vehicle. Notably, among these elements, a predetermined brake is fastened prior to fuel supply upon engine startup, enhancing overall efficiency.

Career Highlights

Narihito Hongawara currently works at Mazda Motor Corporation, a leader in automotive innovation. His role at Mazda has been instrumental in the development of advanced powertrain technologies that significantly contribute to the company's reputation for engineering excellence. With a strong foundation in mechanical engineering, Narihito has continually pushed the boundaries of automotive performance.

Collaborations

Throughout his career, Narihito has collaborated with distinguished colleagues such as Kyosei Nakashima and Tatsuhiko Iwasaki. Their teamwork exemplifies the collaborative spirit inherent in the innovation process, allowing them to tackle complex challenges and achieve remarkable advancements in vehicle technology.

Conclusion

In conclusion, Narihito Hongawara's dedication to innovation within the automotive industry is evident through his numerous patents and contributions at Mazda Motor Corporation. His work not only advances vehicle technology but also inspires future inventors to pursue excellence in engineering and innovation.

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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