Shizuoka, Japan

Seiji Nakagaki

This inventor holds 3 USPTO granted patents. Top assignee: Yamaha Hatsudoki Kabushiki Kaisha. Active years: 2000-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiji Nakagaki. Retrieved from https://idiyas.com/inventor/seiji-nakagaki

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


% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 3

Forward Citations = 35(Granted Patents)


Location History:

  • Iwata, JP (2000)
  • Shizuoka, JP (2009 - 2019)

Company Filing History:


Years Active: 2000-2019

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3 patents (USPTO):Explore Patents

Title: Seiji Nakagaki: Innovator in Vehicle Technology

Introduction

Seiji Nakagaki is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of vehicle technology, holding a total of 3 patents. His innovative designs focus on enhancing vehicle performance and functionality.

Latest Patents

One of Nakagaki's latest patents is for a vehicle that includes a shiftable transmission with an operation lever. This design features an engine, a continuously variable transmission, a shiftable transmission, a switching lever, a shift rod, and an operation lever. The continuously variable transmission is strategically located beside the engine, while the shiftable transmission is positioned in alignment with it. The switching lever inputs a shifting operation force into the shiftable transmission, and the operation lever allows the driver to shift the transmission effectively.

Another notable patent is for a small-sized vehicle, such as an ATV (All Terrain Vehicle). This vehicle includes an engine with an output shaft, a front gear mechanism, and a rear gear mechanism. The design ensures that the front and rear output shaft portions are arranged coaxially with their respective first shafts, which helps in minimizing vibrations and noise during operation.

Career Highlights

Seiji Nakagaki is currently employed at Yamaha Hatsudoki Kabushiki Kaisha, a leading company in the automotive industry. His work at Yamaha has allowed him to develop innovative solutions that enhance vehicle performance and user experience.

Collaborations

Throughout his career, Nakagaki has collaborated with talented individuals such as Hiroyuki Fujimoto and Tomoyuki Hayashi. These collaborations have contributed to the advancement of vehicle technology and innovation.

Conclusion

Seiji Nakagaki is a distinguished inventor whose work in vehicle technology has led to several important patents. His innovative designs continue to influence the automotive industry, showcasing his commitment to enhancing vehicle performance and functionality.

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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