Toyota, Japan

Hisato Wakamatsu

This inventor holds 7 USPTO granted patents. Top assignees: Nippon Soken, Inc., Nippondenso Co., Ltd., Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1976-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisato Wakamatsu. Retrieved from https://idiyas.com/inventor/hisato-wakamatsu

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 = 1.8

ph-index = 5

Forward Citations = 90(Granted Patents)


Location History:

  • Toyota, JA (1976)
  • Kariya, JA (1976)
  • Toyota, JP (1979 - 1981)

Company Filing History:


Years Active: 1976-1981

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7 patents (USPTO):Explore Patents

Title: The Innovative Journey of Hisato Wakamatsu

Introduction: Hisato Wakamatsu, an accomplished inventor based in Toyota, Japan, has made significant contributions in the field of engineering through his innovative inventions. With a total of seven patents to his name, Wakamatsu’s work continues to influence various industries, particularly in automotive and ultrasonic technology.

Latest Patents: Among his notable inventions, Wakamatsu's latest patents include an Automatic Transmission System and an Apparatus for Measuring Temperature of Ultrasonic Wave Propagation Medium. The Automatic Transmission System features a fluid-type transmission linked to a shift control mechanism that allows the selection of various shift positions, coupled with an electronic control circuit designed for managing hydraulic-actuated units. This sophisticated system includes a shift position detector that identifies the selected position and an integrated electronic control circuit positioned strategically within the transmission’s fluid source.

Another significant invention is the Apparatus for Measuring Temperature of Ultrasonic Wave Propagation Medium. This device utilizes ultrasonic wave signals transmitted through a medium, captured by two receivers spaced apart. The advanced sensor generates a detected phase difference signal based on the signals received, which is then processed to measure and display the temperature of the propagating medium.

Career Highlights: Hisato Wakamatsu's professional journey includes valuable experiences at prominent companies in the engineering sector. He worked with Nippon Soken, Inc. and Toyota Motor Corporation (Toyota Jidosha Kogyo Kabushiki Kaisha), where he honed his skills and developed cutting-edge technologies that have shaped the landscape of modern engineering specifically in automotive applications.

Collaborations: Throughout his career, Wakamatsu has collaborated with various talented professionals, including esteemed colleagues Hiroshi Arai and Sigeyuki Akita. These partnerships have fostered an environment of innovation and creativity, allowing the team to tackle complex engineering challenges and enhance their inventions.

Conclusion: Hisato Wakamatsu's journey as an inventor reflects a dedication to innovation and excellence in engineering. With a robust portfolio of patents and collaborations with leading companies and talented experts, he continues to pave the way for future advancements in technology. His contributions exemplify the essence of ingenuity and remain influential in their respective fields.

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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