Numazu, Japan

Masayoshi Usui

USPTO Granted Patents = 122 

 

 

Average Co-Inventor Count = 1.4

ph-index = 18

Forward Citations = 1,298(Granted Patents)

Forward Citations (Not Self Cited) = 1,227(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Numazu, JA (1978)
  • Numazu City, JP (1990 - 1991)
  • Mumazu, JP (1991 - 1992)
  • Shizuoka-ken, JP (1997)
  • Shizuoka, JP (1990 - 1998)
  • Shizukoa, JP (1998)
  • Numazu, JP (1980 - 2013)

Company Filing History:


Years Active: 1978-2013

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Areas of Expertise:
Heat Exchanger
Fuel Delivery Pipe
Common Rail Injection System
Diesel Engine Technology
High-Pressure Fuel Injection
Corrosion Resistant Coatings
Metal Pipe Fabrication
Supercharging Systems
Fluid Couplings
Metal Honeycomb Cores
Magnetic Heating Devices
Dental Examination Tools
122 patents (USPTO):Explore Patents

Title: Masayoshi Usui: A Prodigy in Heat Exchangers and Fuel Delivery Systems

Introduction:

Masayoshi Usui, a brilliant inventor hailing from Numazu, Japan, has made significant contributions to the field of mechanical engineering. With an impressive total of 121 patents to his name, Usui is known for his innovative designs in heat exchangers and fuel delivery systems. This article delves into his latest patents, career highlights, collaborations, and the invaluable impact he has had on these industries.

Latest Patents:

One of Usui's recent patent achievements involves the development of a heat exchanger with exceptional heat exchange performance at a reduced cost. By implementing a fin member and enhancing heat conductivity between the fin member and a meandering pipe body, this heat exchanger boasts high efficiency and can be installed even in confined spaces, offering flexibility in layout design.

In another groundbreaking invention, Usui designed a fuel delivery pipe aimed at minimizing pressure pulsations during fuel injection, reducing vibrations and noise, and effectively suppressing radiated sound. The pipe incorporates a flexible absorbing wall surface that adjusts to internal pressure changes, allowing for increased internal volume and optimized fuel flow.

Career Highlights:

During his career, Usui has worked with prominent companies such as Usui Kokusai Sangyo Kaisha Limited and Usui Kokusai Sangyo Kabushiki Kaisha, Ltd. These organizations have recognized his exceptional talent and supported his pursuit of innovative solutions in heat exchangers and fuel delivery systems.

Collaborations:

Usui's inventions have benefited greatly from collaborations with accomplished engineers. His coworker, Kazunori Takikawa, has been instrumental in refining and optimizing his designs. Together, they have developed groundbreaking systems that have advanced the efficiency, reliability, and performance of heat exchangers and fuel delivery pipes.

Additionally, Usui has partnered with Kikuo Asada, another esteemed engineer, to further enhance his inventions. Asada's expertise in material science and manufacturing techniques has contributed significantly to the practical implementation and commercialization of Usui's innovations.

Conclusion:

Masayoshi Usui's relentless pursuit of excellence in mechanical engineering has resulted in game-changing patents in the field of heat exchangers and fuel delivery systems. His commitment to optimizing performance, reducing costs, and improving sustainability has bolstered the industry as a whole. Through collaborations with talented engineers and his invaluable contributions to companies like Usui Kokusai Sangyo Kaisha Limited and Usui Kokusai Sangyo Kabushiki Kaisha, Ltd., Usui continues to make an indelible mark on the innovation landscape.

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