Mito, Japan

Tatsuyuki Yamamoto

This inventor holds 39 USPTO granted patents and 7 published patent applications and 6 EPO patents, primarily in Electric Vehicle Control. Top assignees: Hitachi, Ltd., Canon Kabushiki Kaisha, Hitachi Automotive Systems, Ltd.. Active years: 1998-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuyuki Yamamoto. Retrieved from https://idiyas.com/inventor/tatsuyuki-yamamoto

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

USPTO Granted Patents = 39 

% Patents Active = 41.0

 

Average Co-Inventor Count = 2.5

ph-index = 10

Forward Citations = 313(Granted Patents)


Location History:

  • Ibaraki-ken, JP (2009)
  • Toride, JP (2007 - 2010)
  • Hitachinaka, JP (2003 - 2011)
  • Mito, JP (2006 - 2011)
  • Isehara, JP (1998 - 2019)
  • Tokyo, JP (2007 - 2020)

Company Filing History:


Years Active: 1998-2025

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Areas of Expertise:
Electric Vehicle
Hybrid Vehicle
Image Forming
Control System
Torque Command
Vibration Suppression
Motor Control
Vehicle Drive Unit
Electric Motor
Generating System
Driving Force Control
Sheet Feeding
39 patents (USPTO):Explore Patents

Title: Innovations and Contributions of Tatsuyuki Yamamoto

Introduction

Tatsuyuki Yamamoto, an accomplished inventor based in Mito, Japan, has made significant strides in the field of technology with a remarkable portfolio of 38 patents. His innovative work spans various domains, particularly in electric vehicle technology and imaging systems.

Latest Patents

Yamamoto's latest inventions include a sophisticated photosensitive unit, which features a rotatable photosensitive member and multiple components designed to optimize functionality and enhance efficiency. The apparatus includes a charging roller and a separation member with specific engagement capabilities, allowing for precise operational dynamics.

Another groundbreaking patent involves a device and method for controlling electric vehicles equipped with torque command and vibration suppression mechanisms. This invention addresses the critical need to suppress vibrations effectively while maintaining optimal torque during both braking and acceleration, enhancing the driving experience.

Career Highlights

Throughout his career, Tatsuyuki Yamamoto has worked with prestigious companies, including Hitachi, Ltd. and Canon Kabushiki Kaisha. These associations have provided a fertile ground for his innovative ideas and technological advancements, enabling him to influence the industry significantly.

Collaborations

Yamamoto’s collaborations with colleagues, such as Takehiko Kowatari and Kenta Katsuhama, highlight the importance of teamwork and shared expertise in the development of cutting-edge technologies. Together, they have contributed to advancing applications that are widely utilized in various sectors today.

Conclusion

Tatsuyuki Yamamoto's work exemplifies the spirit of innovation, with his numerous patents demonstrating a commitment to improving technology in electric vehicles and imaging systems. His contributions not only reflect his skills as an inventor but also inspire future advancements in these critical areas.

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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