Tokyo, Japan

Hisao Tatsumi

This inventor holds 10 USPTO granted patents. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Ha Products Co., Ltd., Tokyo Shibaura Denki Kabushiki Kaisha. Active years: 1982-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisao Tatsumi. Retrieved from https://idiyas.com/inventor/hisao-tatsumi

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


% Patents Active = 70.0

Average Co-Inventor Count = 2.6

ph-index = 8

Forward Citations = 184(Granted Patents)


Location History:

  • Nagoya, JP (1982 - 2010)
  • Nagoya-chi, JP (2013)
  • Tokyo, JP (2011 - 2014)

Company Filing History:


Years Active: 1982-2014

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10 patents (USPTO):Explore Patents

Title: Hisao Tatsumi: Innovator in Washing and Drying Technology

Introduction

Hisao Tatsumi is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of washing and drying machines. With a total of 10 patents to his name, Tatsumi has developed innovative solutions that enhance the efficiency and functionality of household appliances.

Latest Patents

Among his latest inventions is a washing and dehydrating machine that features a unique circulating passage connecting the interior and exterior of a water tub. This machine includes a warm air generating unit that warms the air in the passage, an overflow outlet for managing water levels, and a drain conduit for discharging water. Another notable invention is a drum type washing-drying machine, which incorporates an air supply and discharge opening within the water tub. This design optimizes air circulation and includes a heat exchange section with a condenser and evaporator, enhancing the machine's drying capabilities.

Career Highlights

Hisao Tatsumi has worked with notable companies such as Toshiba Corporation and Toshiba Ha Products Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to the development of advanced washing and drying technologies.

Collaborations

Throughout his career, Tatsumi has collaborated with talented individuals, including Shinichiro Kawabata and Takashi Kawano. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Hisao Tatsumi's work in the field of washing and drying machines exemplifies his commitment to innovation and efficiency. His patents reflect a deep understanding of technology and a desire to improve everyday appliances.

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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