Sayama, Japan

Hamao Yamashiro

This inventor holds 3 USPTO granted patents and 2 EPO patents. Top assignees: Adachi Construction Industry Co. Ltd., Sekisui Chemical Co., Ltd., Sekisui Kagaku Kogyo Kabushiki Kaisha. Active years: 1998-2007.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hamao Yamashiro. Retrieved from https://idiyas.com/inventor/hamao-yamashiro

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 = 4.7

ph-index = 3

Forward Citations = 23(Granted Patents)


Company Filing History:


Years Active: 1998-2007

Loading Chart...
Loading Chart...
3 patents (USPTO):Explore Patents

Title: Hamao Yamashiro: Innovator in Lining Construction Technology

Introduction

Hamao Yamashiro is a notable inventor based in Sayama, Japan. He has made significant contributions to the field of lining construction technology, particularly in sewer systems. With a total of 3 patents, his work has advanced the methods and devices used in this essential area of civil engineering.

Latest Patents

Yamashiro's latest patents include innovative methods and devices for lining construction in sewers. One of his notable inventions is a method and device for lining construction that allows for simultaneous filling of back-fill material. This invention involves a lining apparatus that utilizes a flexible forming frame to create a lining pipe while injecting back-filling material into the inward-folded part of the pipe. Another significant patent focuses on a lining apparatus designed for tubular culverts with arbitrary cross-sections, allowing for the insertion of a tubular body formed by spirally winding a strip member. This technology is adaptable to various shapes, including oval, rectangular, and polygonal forms.

Career Highlights

Throughout his career, Hamao Yamashiro has worked with reputable companies such as Adachi Construction Industry Co., Ltd. and Sekisui Kagaku Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in lining construction technology.

Collaborations

Yamashiro has collaborated with several professionals in his field, including Naoki Kitahashi and Yasushi Kitayama. These collaborations have likely enriched his work and led to further innovations in lining construction.

Conclusion

Hamao Yamashiro's contributions to lining construction technology have made a significant impact on the industry. His innovative patents and collaborations reflect his dedication to advancing this essential 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]
Loading…