Wako, Japan

Isamu Doi

This inventor holds 1 USPTO granted patent. Top assignee: Other. Active years: 2001.


% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 12(Granted Patents)


Company Filing History:

goldMedal1 out of 834,453 
Other
 patents

Years Active: 2001

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1 patent (USPTO):Explore Patents

Title: Isamu Doi: Innovator in Liquid-Encapsulated Bushing Technology

Introduction

Isamu Doi is a notable inventor based in Wako, Japan. He has made significant contributions to the field of mechanical engineering, particularly in the development of innovative bushing technologies. His work has led to advancements that enhance the performance and reliability of various mechanical systems.

Latest Patents

Doi holds a patent for a liquid-encapsulated bushing. This invention involves a first bushing rubber and a first collar that are integrally fixed to the outer periphery of the left end of an inner tube. This inner tube supports a spherical portion of a support shaft for rotation through a bearing. Additionally, a second bushing rubber and a second collar are integrally fixed to the inner periphery of the right end of an outer tube, which is disposed outside the inner tube. A liquid chamber, containing a liquid encapsulated therein, is defined between the first and second bushing rubbers. This is achieved by axially placing the outer tube over the inner tube, fixing the outer tube to the first collar by caulking, and fixing the second collar to the inner tube by press-fitting. This design allows for easy determination of the spring characteristics of the bushing rubbers and the sectional shape of the liquid chamber.

Career Highlights

Throughout his career, Isamu Doi has focused on creating solutions that improve mechanical systems. His innovative approach has led to the development of technologies that are not only effective but also practical for various applications. Doi's work exemplifies the intersection of creativity and engineering.

Collaborations

Isamu Doi has collaborated with notable colleagues, including Yasuo Miyamoto and Hiroshi Tokimoto. These partnerships have fostered an environment of innovation and have contributed to the success of his projects.

Conclusion

Isamu Doi's contributions to the field of mechanical engineering, particularly through his patent for a liquid-encapsulated bushing, highlight his role as an influential inventor. His work continues to impact the industry positively, showcasing the importance of innovation in engineering.

Profile summary based on public USPTO records.
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