Hitachinaka, Japan

Masahiko Hayatani

This inventor holds 22 USPTO granted patents and 4 published patent applications and 17 EPO patents, primarily in Fuel Injection Technology. Top assignees: Hitachi, Ltd., Hitachi Automotive Systems, Ltd., Hitachi Car Engineering Co., Ltd.. Active years: 2006-2021.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiko Hayatani. Retrieved from https://idiyas.com/inventor/masahiko-hayatani

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

USPTO Granted Patents = 22 

% Patents Active = 90.9

 

Average Co-Inventor Count = 5.2

ph-index = 5

Forward Citations = 76(Granted Patents)


Location History:

  • Munich, DE (2009 - 2010)
  • Hitachinaka, JP (2006 - 2021)

Company Filing History:


Years Active: 2006-2021

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Areas of Expertise:
High-Pressure Fuel Pump
Electromagnetic Fuel Injector
Fuel Injection Valve
Fuel Supply Pump
Electromagnetically Driven Intake Valve
Fuel Injection Nozzle
Direct-Injection Engine
Stroke Adjustment Method
Electromagnetic Injection Valve Device
Internal Combustion Engine
22 patents (USPTO):Explore Patents

Title: Innovations and Patents of Masahiko Hayatani

Masahiko Hayatani is a prominent inventor based in Hitachinaka, Japan. With an impressive portfolio of 22 patents, he has made significant contributions to the field of high-pressure fuel systems. His inventive work mainly focuses on improving efficiency and functionality in fuel pump technologies.

Latest Patents

Hayatani's recent innovations include a high-pressure fuel pump designed to simplify the structure used to secure a cylinder to the pump body. This invention addresses the need for a reduced displacement amount inward in the radial direction of the cylinder. The pump comprises a body with a pressing chamber and a cylinder inserted in a specifically formed hole. The cylinder can be secured through various methods, including swaging, screw threading, or pressing, ensuring reliability and efficiency.

Another notable patent is the high-pressure fuel supply pump featuring an electromagnetically-driven intake valve. This pump includes an intake valve unit positioned between a low-pressure chamber and a pressurizing chamber. The unit enables movement in the axial direction while allowing fuel to flow between the chambers through strategically designed fuel passages on the valve stopper's surface, enhancing the pump's performance.

Career Highlights

Hayatani has made impactful strides in his career by working with leading companies such as Hitachi, Ltd. and Hitachi Automotive Systems, Ltd. His dedication to innovation has yielded patents that contribute to advancing fuel system technologies, reflecting his expertise in mechanical engineering and design.

Collaborations

Throughout his career, Hayatani has collaborated with notable coworkers, including Motoyuki Abe and Tohru Ishikawa. These partnerships have fostered an environment of innovation, leading to the development of groundbreaking patents in fuel pump engineering.

Conclusion

Masahiko Hayatani's contributions to high-pressure fuel pump technology exemplify the spirit of innovation. With 22 patents under his name, his work continues to inspire advancements in fuel system efficiency. His career reflects a commitment to collaboration and creativity, marking him as a significant figure in the realm of invention.

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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