Hirakata, Japan

Norio Mitani

This inventor holds 4 USPTO granted patents. Top assignee: Kabushiki Kaisha Komatsu Seisakusho. Active years: 1992-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Norio Mitani. Retrieved from https://idiyas.com/inventor/norio-mitani

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 = 2

Forward Citations = 11(Granted Patents)


Company Filing History:


Years Active: 1992-1996

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4 patents (USPTO):Explore Patents

Title: Norio Mitani: Innovator in Shield Machine Technology

Introduction

Norio Mitani is a prominent inventor based in Hirakata, Japan, known for his contributions to the field of shield machine technology. With a total of 4 patents to his name, Mitani has made significant advancements that enhance the efficiency and functionality of tunneling machines.

Latest Patents

One of his latest patents is for auxiliary cutter units of a shield machine. This innovation involves preliminary cutter units that can continuously excavate soil even when the main cutters are worn away. The design includes a cutter head at the front of the shield body, which is rotated by motors, and features multiple main cutters attached to the face plate. The auxiliary cutter units are swingably supported and equipped with a hydraulic jack unit that allows for the projection and retraction of the preliminary cutters.

Another notable patent is for an articulated shield tunneling machine, which further showcases his expertise in improving tunneling technology.

Career Highlights

Norio Mitani is currently employed at Kabushiki Kaisha Komatsu Seisakusho, a leading company in the manufacturing of construction and mining equipment. His work has significantly contributed to the development of advanced tunneling solutions.

Collaborations

Throughout his career, Mitani has collaborated with notable coworkers such as Kazunari Kawai and Yoshihisa Yamamoto, further enhancing the innovative capabilities of his projects.

Conclusion

Norio Mitani's contributions to shield machine technology exemplify the impact of innovation in engineering. His patents not only improve the efficiency of tunneling operations but also reflect his commitment to advancing the field.

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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