Toyota, Japan

Katsuhisa Yamada

This inventor holds 27 USPTO granted patents and 2 EPO patents, primarily in Vehicle Door Technology. Top assignees: Aisin Seiki Kabushiki Kaisha, Aisin Technical Center of America, Inc., Aisin Seiki Kabushiki Kaisha Kariya. Active years: 2000-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuhisa Yamada. Retrieved from https://idiyas.com/inventor/katsuhisa-yamada

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


% Patents Active = 85.2


Average Co-Inventor Count = 4.5

ph-index = 11

Forward Citations = 486(Granted Patents)


Location History:

  • Aichi-Pref., JP (2001)
  • Aichi-ken, JP (2001 - 2002)
  • West Bloomfield, MI (US) (2010 - 2014)
  • Toyota, JP (2000 - 2015)

Company Filing History:


Years Active: 2000-2015

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Areas of Expertise:
Vehicle Door
Slide Door Apparatus
Remote Control Device
Child Safety
Door Lock Device
Opening Movement Control
Electricity Feeding Device
Drive Device
27 patents (USPTO):Explore Patents

Title: **Innovative Contributions of Katsuhisa Yamada in Automotive Technology**

Introduction

Katsuhisa Yamada is an accomplished inventor based in Toyota, Japan, known for his significant contributions to automotive technology. With an impressive portfolio of 27 patents, Yamada's work has had a substantial impact on vehicle design and functionality.

Latest Patents

Among his recent inventions, two notable patents stand out. The first patent is for a **Vehicle Door Opening/Closing Device**. This innovative design features a front cable and rear cable wound around a drum, utilizing pulleys to change direction, which allows for precise and effective door operation. The design ensures optimal routing of the cables for improved functionality.

The second patent is for a **Lit Door Handle for a Vehicle**. This inventive door handle incorporates a light source mounted within the handle body, along with a light-transmitting member that enhances visibility. This advancement improves usability, especially in low-light conditions, making it a practical enhancement for vehicle safety and convenience.

Career Highlights

Katsuhisa Yamada has a history of working with prominent companies in the automotive sector, notably Aisin Seiki Kabushiki Kaisha. His time there allowed him to collaborate with other experts in the field, further refining his innovative designs and expanding his extensive patent portfolio.

Collaborations

In his career, Yamada has worked closely with talented colleagues such as Ryoichi Fukumoto and Masao Ohhashi. Their teamwork has fostered an environment of creativity and innovation, leading to groundbreaking advancements in automotive technology.

Conclusion

Katsuhisa Yamada exemplifies the spirit of innovation within the automotive industry. His extensive patent portfolio and collaborations with industry professionals underscore his valuable contributions to vehicle technology and design. As the automotive industry continues to evolve, Yamada's inventions will likely play a critical role in shaping the future of vehicle functionality and user experience.

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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