Kobe, Japan

Hisashi Tonegawa

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Tonegawa. Retrieved from https://idiyas.com/inventor/hisashi-tonegawa

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 = 10.0

ph-index = 1

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1988

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1 patent (USPTO):Explore Patents

Title: The Innovative Mind of Hisashi Tonegawa: A Pioneer in Water Purification

Introduction: Hisashi Tonegawa, an accomplished inventor based in Kobe, Japan, has made significant contributions to the field of water purification technology. With a unique patent under his name, Tonegawa has demonstrated the importance of innovation in addressing critical societal needs, such as access to clean drinking water.

Latest Patents: Hisashi Tonegawa holds a notable patent for a "Drinking Water Purifying Apparatus." This innovative device is designed to purify water from a water service by employing an ozone-generating system. The apparatus comprises an ozone reaction mechanism that reacts ozonized gas with water, followed by a treatment system that ensures the resulting water is free from organic compounds and unpleasant odors. This invention promises to enhance the taste and safety of drinking water, making it a vital development for public health.

Career Highlights: Tonegawa is currently associated with Mitsubishi Electric Corporation, a leading company in the field of electrical and electronic equipment. His work at Mitsubishi Electric underscores his commitment to advancing technology that benefits consumers. His expertise in engineering and innovation has positioned him as a key player in water purification systems.

Collaborations: Throughout his career, Hisashi Tonegawa has collaborated with several esteemed colleagues, including Toshihiko Sasaki and Keisuke Namba. These partnerships reflect a collaborative spirit within the field of engineering, where shared knowledge and expertise enhance the process of innovation and invention.

Conclusion: Hisashi Tonegawa stands out as a brilliant inventor, whose patent for a drinking water purifying apparatus embodies the essence of innovation aimed at improving public health. His association with Mitsubishi Electric Corporation and collaborative work with fellow engineers further highlight the significance of teamwork in driving technological advancements. Tonegawa's commitment to enhancing the quality of drinking water is a reminder of the vital role that inventors play in creating a safer and healthier world.

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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