Yokohama, Japan

Rokuro Misawa

This inventor holds 2 USPTO granted patents. Top assignee: Nippon Kokan Kabushiki Kaisha. Active years: 1976-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Rokuro Misawa. Retrieved from https://idiyas.com/inventor/rokuro-misawa

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 = 4.8

ph-index = 1

Forward Citations = 5(Granted Patents)


Location History:

  • Yokohama, JA (1976)
  • Yokohama, JP (1987)

Company Filing History:


Years Active: 1976-1987

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2 patents (USPTO):Explore Patents

Title: Rokuro Misawa: Innovator in Liquefied Gas Technology

Introduction

Rokuro Misawa is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of liquefied gas technology, holding 2 patents that showcase his innovative approach to solving complex engineering challenges.

Latest Patents

One of Misawa's latest patents is a method and apparatus for preventing stratification of liquefied gases. This invention addresses the issue of multi-component liquefied gases, such as liquefied natural gases (LNG) and liquefied petroleum gases (LPG), being stored in the same tank. The technique involves introducing the liquefied gas into the storage tank in a manner that prevents stratification, ensuring effective mixing with the existing liquefied gas. The gas is introduced as a jet from near the tank bottom, which ascends at a specific angle to reach the free surface, promoting optimal mixing.

Another significant patent by Misawa is related to the method of making butt welded tubes. This invention outlines a process that enhances the properties of butt welded tubes. The method includes forming a skelp into a round shape, butt welding the edges, and using oxygen or air to create oxidizing heat in the weld zone. This process ensures a smooth surface and the required dimensions of the tube, making it a valuable contribution to manufacturing techniques.

Career Highlights

Rokuro Misawa has been associated with Nippon Kokan Kabushiki Kaisha, a prominent company in the steel and engineering industry. His work has not only advanced the technology in liquefied gas storage but has also contributed to the development of high-quality welded tubes.

Collaborations

Throughout his career, Misawa has collaborated with esteemed colleagues such as Hidenori Horii and Itsuo Hirose. These partnerships have fostered innovation and have been instrumental in the successful development of his patents.

Conclusion

Rokuro Misawa's contributions to liquefied gas technology and manufacturing processes highlight his role as a significant inventor in his field. His innovative patents reflect a commitment to advancing engineering solutions that address real-world challenges.

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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