Nagasaki, Japan

Shozo Morohoshi

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Jukogyo Kabushiki Kaisha. Active years: 1988.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shozo Morohoshi. Retrieved from https://idiyas.com/inventor/shozo-morohoshi

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 = 6.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1988

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1 patent (USPTO):Explore Patents

Title: The Innovative Genius of Shozo Morohoshi: Pioneering Propeller Technology

Introduction: Shozo Morohoshi, an esteemed inventor located in Nagasaki, Japan, has made significant contributions to the field of marine engineering. With a singular patent to his name, his work focuses on enhancing propeller systems used in marine vessels.

Latest Patents: Morohoshi's notable patent is titled "Stern tube bearing system of contra-rotating propeller." This innovative system consists of an inner shaft equipped with a rear propeller and an outer shaft featuring a front propeller, both of which rotate in opposing directions. A distinctive feature of this invention is the hollow shaft center of the inner shaft, accompanied by multiple oil supply holes arranged perpendicular to the outer peripheral surface. This design effectively mitigates the risk of bearing seizing due to offset contact at the rear end, a common issue caused by the overhung propeller.

Career Highlights: Shozo Morohoshi currently works with Mitsubishi Jukogyo Kabushiki Kaisha, a reputable company known for its advancements in various engineering fields. His dedication to innovation has solidified his status as a key player in marine technology.

Collaborations: Throughout his career, Morohoshi has collaborated with other talented engineers, including notable coworkers Sadao Asanabe and Kunio Saki. Their collective expertise has contributed to pioneering advancements within their field.

Conclusion: Shozo Morohoshi’s inventive spirit and groundbreaking patent for a stern tube bearing system exemplify the critical role of innovation in marine engineering. His work not only benefits the industry but also inspires future inventors to continue pushing boundaries in technology.

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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