Gotemba, Japan

Takashi Kawai

This inventor holds 61 USPTO granted patents and 13 EPO patents, primarily in Hybrid Vehicle Control (CPC class F16C). Top assignees: Toyota Jidosha Kabushiki Kaisha, Ntn Corporation, Aisin Corporation. Active years: 1997-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Kawai. Retrieved from https://idiyas.com/inventor/takashi-kawai

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


% Patents Active = 60.7

 

Average Co-Inventor Count = 2.3

ph-index = 12

Forward Citations = 318(Granted Patents)

Forward Citations (Not Self Cited) = 312(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Atsugi, JP (1998)
  • Gotenba, JP (2010)
  • Gotemba, JP (2011 - 2019)
  • Susono, JP (1997 - 2022)
  • Anjo, JP (2002 - 2022)
  • Shizuoka, JP (1998 - 2023)
  • Iwata, JP (2020 - 2023)
  • Kariya, JP (2023)

Company Filing History:


Years Active: 1997-2023

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Areas of Expertise:
Hybrid Vehicle
Control Apparatus
Powertrain System
Tapered Roller Bearing
Vibration Damping
Exhaust Gas Purification
Vehicle Control
Battery Input Power
Charge Control
Superimposed Image Display
Rolling Bearing
Retainer
61 patents (USPTO):Explore Patents

Title: Takashi Kawai: Innovator and Patent Holder

Introduction

Takashi Kawai, a prominent inventor based in Gotemba, Japan, has made significant contributions to the field of engineering, evidenced by his impressive portfolio of 61 patents. His innovations span various technologies, ranging from advanced display devices to sophisticated mechanical components.

Latest Patents

Among his latest patents is the innovative superimposed-image display device. This invention enhances vehicle navigation by providing a visual representation of multiple guidance objects that direct drivers through complex divergence points. The device strategically displays these objects in alignment with the occupant's line of sight, ensuring clarity and effectiveness when navigating entry and exit routes.

Another notable invention by Kawai is the tapered roller bearing, which features a scientifically advanced cage structure designed to enhance the performance of the rollers it houses. The bearing incorporates a deburring-press processed surface that optimizes its functionality. This design includes uniquely shaped relief portions that contribute to smoother operation, showcasing Kawai's commitment to improving engineering standards.

Career Highlights

Throughout his career, Takashi Kawai has worked with renowned companies, including Toyota and NTN Corporation. His tenure at these leading organizations has facilitated the development and realization of his numerous patents. Kawai's expertise in engineering and innovation has cemented his reputation as a valuable asset in the tech and automotive industries.

Collaborations

Kawai has partnered with notable colleagues, including Hideto Hanada and Hiroshi Tsujii, contributing to the collaborative nature of invention and development within his field. Their joint efforts have likely played a role in the successful realization of innovative technologies that have practical applications.

Conclusion

Takashi Kawai exemplifies the spirit of innovation through his extensive patent portfolio and significant contributions to engineering. His work not only pushes the boundaries of technology but also provides practical solutions that continue to impact the automotive and engineering industries positively. With a track record of collaboration and ingenuity, Kawai sets a standard for inventors and engineers alike.

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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