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For the Inventor, By the Inventor

Yokohama, Japan

Shinobu Kumagai

This inventor holds 4 USPTO granted patents. Top assignee: Nippon Kokan Kabushiki Kaisha. Active years: 1979-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shinobu Kumagai. Retrieved from https://idiyas.com/inventor/shinobu-kumagai

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

USPTO Granted Patents = 4

% Patents Active = 100.0

Average Co-Inventor Count = 3.6

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Fukuyama, JP (1979)
  • Yokohama, JP (1982 - 1987)

Company Filing History:

goldMedal4 out of 487 
 
Nippon Kokan Kabushiki Kaisha
 patents

Years Active: 1979-1987

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4 patents (USPTO):Explore Patents
1. 4660618 - Flow stop control method and apparatus for casting withdrawal control of (1987-04-28),
2. 4590985 - Apparatus for horizontally and intermittently withdrawing cast steel (1986-05-27),
3. 4320668 - Sub-lance assembly for sampling and temperature-measuring of molten (1982-03-23),
4. 4141249 - Sub-lance assembly for sampling and temperature-measuring of molten (1979-02-27),

Title: The Innovations of Shinobu Kumagai

Introduction

Shinobu Kumagai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of casting technology, holding a total of 4 patents. His work focuses on improving the efficiency and control of casting processes in industrial applications.

Latest Patents

Kumagai's latest patents include a flow stop control method and apparatus for casting withdrawal control. This invention addresses the challenges faced in horizontal continuous casting machines. The method involves controlling the stop of the flow of casting during the stopping period of the withdrawing cycle. It ensures that the flow of casting is halted within a predetermined period. The desired braking torque is calculated based on load variations due to casting conditions. This braking torque is then applied to the pinch roll shafts at the end of the withdrawing period, effectively stopping the flow of casting in a timely manner.

Career Highlights

Shinobu Kumagai is associated with Nippon Kokan Kabushiki Kaisha, a prominent company in the steel industry. His work has been instrumental in advancing casting technologies, contributing to the efficiency and reliability of production processes.

Collaborations

Kumagai has collaborated with notable colleagues, including Akira Honda and Kazuo Mitani. Their combined expertise has fostered innovation and development in their respective fields.

Conclusion

Shinobu Kumagai's contributions to casting technology exemplify the impact of innovative thinking in industrial processes. His patents reflect a commitment to enhancing efficiency and control in manufacturing.

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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