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For the Inventor, By the Inventor

Saitama, Japan

Tamotsu Nakamura

This inventor holds 17 USPTO granted patents. Top assignee: Showa Corporation. Active years: 1998-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tamotsu Nakamura. Retrieved from https://idiyas.com/inventor/tamotsu-nakamura

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

USPTO Granted Patents = 17

% Patents Active = 88.2

Average Co-Inventor Count = 1.2

ph-index = 4

Forward Citations = 49(Granted Patents)


Location History:

  • Gyoda, JP (2001)
  • Saitama, JP (1998 - 2003)

Company Filing History:

goldMedal17 out of 438 
 
Showa Corporation
 patents

Years Active: 1998-2003

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17 patents (USPTO):Explore Patents
1. D474202 - Tilt device for marine propulsion unit (2003-05-07),
2. 6390868 - Tilt device for marine propulsion unit (2002-05-21),
3. 6390867 - Tilt device for marine propulsion unit (2002-05-21),
4. 6332817 - Trim-tilt device for marine propulsion unit (2001-12-25),
5. 6328616 - Trim-tilt device for a marine propulsion unit (2001-12-11),
6. 6293837 - Trim-tilt device for marine propulsion unit (2001-09-25),
7. 6213823 - Trim-tilt device for marine propulsion unit (2001-04-10),
8. 6165032 - Tilt cylinder device for outboard motor (2000-12-26),
9. 6123590 - Tilt lock device for outboard motor (2000-09-26),
10. 6062924 - Tilt lock device for outboard motor (2000-05-16),
11. 6042435 - Tilt-trim device for marine propulsion device (2000-03-28),
12. 6039617 - Tilt cylinder device for outboard motor (2000-03-21),
13. 5975968 - Trim-tilt device for marine propulsion unit (1999-11-02),
14. 5882235 - Power tilt cylinder device (1999-03-16),
15. 5876259 - Tilt cylinder apparatus for boat propeller unit (1999-03-02),

Title: The Innovative Journey of Tamotsu Nakamura

Introduction

Tamotsu Nakamura, a prolific inventor based in Saitama, Japan, has made significant contributions to the field of marine technology. With a remarkable portfolio of 17 patents, his innovations have paved the way for advancements in marine propulsion systems. Nakamura's work exemplifies the spirit of innovation and dedication to enhancing the functionality and efficiency of marine technology.

Latest Patents

Nakamura’s latest notable invention is the "Tilt Device for Marine Propulsion Unit." This innovative device features a dual-pipe cylinder construction, comprising an outer and an inner cylinder. Within the inner cylinder, a piston rod and piston are designed to work in tandem, creating a pressure accumulating chamber between the two cylinders. Furthermore, a free piston acts as a gas-liquid separating mechanism, positioned strategically between the pressure accumulating chamber and the piston side chamber. This invention aims to improve the performance and reliability of marine propulsion units.

Career Highlights

Throughout his career, Tamotsu Nakamura has continuously sought to push the boundaries of technology. Working with Showa Corporation, he has collaborated on numerous projects aimed at developing cutting-edge marine solutions. His commitment to innovation not only benefits the company he represents but also contributes positively to the marine industry.

Collaborations

Nakamura has worked alongside esteemed colleagues, such as Omito Toyoshima and Hisao Takayanagi. Their collaborative efforts underscore a team-oriented approach in tackling complex engineering challenges, further enhancing the potential for groundbreaking products in marine technology.

Conclusion

In conclusion, Tamotsu Nakamura's impact on the field of marine propulsion is undeniable. With 17 patents to his name and a focus on innovative designs like the tilt device for marine propulsion units, he continues to be a significant figure in advancing marine technology. His dedication and collaborative spirit serve as an inspiration for future inventors and innovators in the industry.

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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