Higashimatsuyama, Japan

Toshizo Hara

This inventor holds 9 USPTO granted patents. Top assignees: Diesel Kiki Co., Ltd., Diesel Kiki Kabushiki Kaisha. Active years: 1981-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshizo Hara. Retrieved from https://idiyas.com/inventor/toshizo-hara

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 = 2.5

ph-index = 7

Forward Citations = 191(Granted Patents)


Location History:

  • Kawajima, JP (1981)
  • Higashi Matsuyama, JP (1982 - 1984)
  • Konan, JP (1983 - 1984)
  • Kawashima, JP (1983 - 1984)
  • Saitama, JP (1985)

Company Filing History:


Years Active: 1981-1985

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9 patents (USPTO):Explore Patents

Title: **The Innovative Contributions of Toshizo Hara**

Introduction

Toshizo Hara is a prominent inventor based in Higashi Matsuyama, Japan, known for his significant contributions to the automotive air conditioning technology. With a total of nine patents to his name, Hara has established himself as an influential figure in the field of automotive innovation.

Latest Patents

Among Hara's latest innovations is the "Window Pane Defroster Device with Vehicle Air Conditioning Apparatus." This invention pertains to enhancing vehicle air conditioning systems by incorporating a control circuit that efficiently manages the functions of the compressor, air change-over doors, and blower fans. This device features a rear window heater wire designed to defrost vehicle windows either manually or automatically, reacting to outdoor frost conditions. The system optimizes power consumption while ensuring the defrosting of windows, thereby improving safety and comfort for drivers.

Another noteworthy patent is the "Trouble Diagnosing Apparatus for an Automobile Air Conditioner." This apparatus is designed to detect potential issues within an automobile's air conditioning system. It automatically identifies trouble conditions and displays the findings by modifying air distribution settings. This advanced system enhances the reliability of vehicle climate controls by diagnosing air conditioning problems effectively.

Career Highlights

Hara's career includes significant roles at Diesel Kiki Co., Ltd. and Diesel Kiki Kabushiki Kaisha, where he utilized his expertise in automotive technology to develop innovative solutions. His work has had a lasting impact on the design and functionality of automotive air conditioning systems, contributing to improved user experience and energy efficiency.

Collaborations

Throughout his career, Hara has collaborated with notable colleagues, including Shinji Sutoh and Toshio Kojima. These partnerships fostered an environment of creativity and innovation, resulting in advanced technological solutions that continue to influence the automotive industry.

Conclusion

Toshizo Hara's inventive spirit and dedication to enhancing automotive technology have led to breakthroughs that improve vehicle comfort and efficiency. With his nine patents, he remains a testament to the vital role of innovation in addressing modern challenges within the automotive sector.

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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