Kashiwa, Japan

Hironobu Yamazaki

This inventor holds 6 USPTO granted patents. Top assignees: Tekken Construction Co., Ltd., Tekken Kensetu Co. Ltd.. Active years: 1976-1983.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hironobu Yamazaki. Retrieved from https://idiyas.com/inventor/hironobu-yamazaki

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.6

ph-index = 3

Forward Citations = 53(Granted Patents)


Location History:

  • Kashiwa, JA (1976 - 1978)
  • Kashiwa, JP (1978 - 1983)

Company Filing History:


Years Active: 1976-1983

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6 patents (USPTO):Explore Patents

Title: Hironobu Yamazaki: Innovator in Hydraulic Shield Tunnelling

Introduction

Hironobu Yamazaki is a notable inventor based in Kashiwa, Japan. He has made significant contributions to the field of hydraulic shield tunnelling, holding a total of six patents. His work focuses on improving excavation methods and machinery used in tunnelling operations.

Latest Patents

Yamazaki's latest patents include an excavation controlling method in hydraulic shield tunnelling. This method allows for real-time decisions during tunnel excavation, assessing whether the excavated soil amounts belong to the same statistical population. Another significant patent is for a shield type hydraulic tunnel boring machine. This machine is equipped with ultrasonic wave transmitting and receiving devices that detect excess excavation due to accidental collapses in soft and unstable ground. The technology enables precise determination of the location, shape, and scale of such excess excavations.

Career Highlights

Throughout his career, Hironobu Yamazaki has worked with reputable companies such as Tekken Construction Co., Ltd. and Tekken Kensetu Co., Ltd. His experience in these organizations has contributed to his expertise in tunnelling technologies and methods.

Collaborations

Yamazaki has collaborated with notable coworkers, including Yoshiaki Uchida and Eiji Sugino. Their combined efforts have further advanced the innovations in hydraulic tunnelling.

Conclusion

Hironobu Yamazaki's contributions to hydraulic shield tunnelling through his patents and collaborations highlight his role as a key innovator in the field. His work continues to influence tunnelling practices and technologies.

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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