Ohdate, Japan

Toshiya Ogasawara

This inventor holds 1 USPTO granted patent. Top assignees: Dowa Engineering Co., Ltd., Dowa Mining Co., Ltd.. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshiya Ogasawara. Retrieved from https://idiyas.com/inventor/toshiya-ogasawara

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 = 5.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Toshiya Ogasawara: Innovator in Tunnel Construction

Introduction

Toshiya Ogasawara is a notable inventor from Ohdate, Japan, recognized for his innovative contributions to tunnel construction. His work has significantly impacted the engineering field, particularly in the design and construction of rectangularly shaped tunnels.

Latest Patents

Ogasawara holds a patent for a "Method for constructing a rectangularly shaped tunnel." This method involves creating an artificial roof, side wall pillars, a center wall pillar, and floor portions that extend along the length of the tunnel. The construction process includes sequentially excavating cross-cut shafts and plugging the cavities with concrete. The design ensures structural integrity and efficiency in tunnel construction.

Career Highlights

Throughout his career, Ogasawara has worked with prominent companies, including Dowa Mining Co., Ltd. and Dowa Engineering Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to significant projects in the field of engineering.

Collaborations

Ogasawara has collaborated with esteemed colleagues such as Norimasa Kubo and Hiroshi Nagino. These partnerships have fostered innovation and advancement in tunnel construction techniques.

Conclusion

Toshiya Ogasawara's contributions to the field of tunnel construction through his patented methods and collaborations with industry professionals highlight his importance as an inventor. His work continues to influence engineering practices today.

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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