Chiryu, Japan

Masao Kawai

This inventor holds 31 USPTO granted patents and 1 EPO patent, primarily in Vehicle Control Systems. Top assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Aw Co., Ltd., Aisin-Warner Kabushiki Kaisha. Active years: 1987-2010.

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

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


% Patents Active = 90.3


Average Co-Inventor Count = 4.8

ph-index = 12

Forward Citations = 657(Granted Patents)


Location History:

  • Chirya, JP (1988)
  • Tokyo, JP (1993)
  • Aichi, JP (1994)
  • Aichi-ken, JP (1997 - 2001)
  • Anjo, JP (1987 - 2003)
  • Tokyo-to, JP (2000 - 2003)
  • Aichi-pref., JP (2003)
  • Chiryu, JP (1987 - 2004)
  • Okazaki, JP (2008 - 2010)

Company Filing History:


Years Active: 1987-2010

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Areas of Expertise:
Navigation Apparatus
Vehicle Control
Transmission Control
Automatic Gear Change
Speed Changer Controller
Hybrid Vehicles
Clutch Mechanism
Cryogenic Refrigerator
Driving Force Distribution
Hydraulic Control
Shift Shock Suppression
Road Information
31 patents (USPTO):Explore Patents

Title: Innovations by Masao Kawai: A Pioneer in Navigation Systems

Introduction: Masao Kawai, an esteemed inventor from Chiryu, Japan, has made significant contributions to the field of navigation technology. With a remarkable portfolio of 31 patents, Kawai has focused on enhancing user experience through innovative navigation systems and methods.

Latest Patents: Kawai's latest patents showcase his dedication to improving navigation technology. One such invention is a "Navigation apparatus and method with traffic ranking and display," which is designed to store traffic information and determine a guiding route to a specified destination. This system calculates congestion levels based on time periods and available traffic data, enabling users to make informed travel decisions. Another notable patent is the "Navigation system and method," which collects user life information and extracts individual life patterns. This system predicts optimal travel times and routes, providing users with reliable traffic information.

Career Highlights: Throughout his career, Masao Kawai has worked with prestigious companies such as Toyota Motor Corporation and Aisin AW Co., Ltd. His tenure in these organizations has allowed him to develop practical solutions that are both innovative and beneficial to users worldwide.

Collaborations: Kawai has collaborated with notable colleagues, including Yoichi Hayakawa and Yoshiharu Harada. Their collective efforts have driven advancements in navigation technology, resulting in patents that reflect their expertise and commitment to innovation.

Conclusion: Masao Kawai's contributions to navigation systems exemplify the power of innovation in enhancing daily life and travel experiences. With his extensive patent portfolio and collaborative spirit, he continues to be a significant figure in the field of technology.

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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