Yokohama, Japan

Seiya Yamashita

This inventor holds 2 USPTO granted patents. Top assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha. Active years: 1991-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Seiya Yamashita. Retrieved from https://idiyas.com/inventor/seiya-yamashita

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 = 2.4

ph-index = 2

Forward Citations = 19(Granted Patents)


Company Filing History:


Years Active: 1991-2002

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2 patents (USPTO):Explore Patents

Title: Seiya Yamashita: Innovator in Floating Structures

Introduction

Seiya Yamashita is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of floating structures, holding two patents that showcase his innovative approach to engineering.

Latest Patents

Yamashita's latest patents include an "Anti-rolling structure for box-type floating body" and a "Floating structure." The anti-rolling structure patent describes a floating body that is substantially rectangular when viewed from above, featuring at least one protrusion on either side in the transverse direction at a level lower than the waterline. The floating structure patent involves a column belt positioned between upper and lower reduced-diameter columns, located only in the vicinity of and across the water surface, which increases the heave resonant period due to the shape of the column belt.

Career Highlights

Seiya Yamashita is associated with Ishikawajima-Harima Heavy Industries Co., Ltd., where he applies his expertise in developing innovative floating structures. His work has contributed to advancements in marine engineering and design.

Collaborations

Yamashita collaborates with talented coworkers, including Toru Takahashi and Yuji Awashima, who share his passion for innovation in the field.

Conclusion

Seiya Yamashita is a distinguished inventor whose work in floating structures has led to valuable patents and advancements in marine technology. His contributions continue to influence the industry and inspire future innovations.

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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