Gunma, Japan

Yoshikazu Kokubun

This inventor holds 5 USPTO granted patents. Top assignee: Sanden Corporation. Active years: 1986-1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshikazu Kokubun. Retrieved from https://idiyas.com/inventor/yoshikazu-kokubun

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 = 2.8

ph-index = 5

Forward Citations = 246(Granted Patents)


Location History:

  • Shin, JP (1987)
  • Gunma, JP (1986 - 1996)

Company Filing History:


Years Active: 1986-1996

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5 patents (USPTO):Explore Patents

Title: The Innovations of Yoshikazu Kokubun in Ferromagnetic Technology

Introduction

Yoshikazu Kokubun is an accomplished inventor based in Gunma, Japan, known for his significant contributions to the field of ferromagnetic technology. With a total of five patents to his name, Kokubun continues to push the boundaries of innovation, particularly in applications related to electric motors and vending systems.

Latest Patents

One of Kokubun's latest patents focuses on a method for making a cylindrical ferromagnetic body and cover assembly specifically designed for the rotor of a direct current (DC) motor. This inventive process involves compressively molding a mix of powdered ferromagnetic material and a heat-curable binder within a non-magnetic cover material. Heat is applied to ensure a firm adhesion, allowing for a durable assembly. In another embodiment, he introduces a method of creating a cup-shaped non-magnetic cover material that flawlessly encases a heated block of powdered ferromagnetic material. This process culminates in a clean, effective assembly that enhances motor performance.

Additionally, he developed a vending apparatus designed for self-service stores, featuring a cabinet that stores various items for purchase, alongside a memory system for product data and a user interface for selecting items. The vending apparatus is equipped with a payment mechanism and a dispenser, facilitating easy and user-friendly transactions for customers.

Career Highlights

Kokubun's career at Sanden Corporation has been marked by his innovative spirit and dedication to research and development. His endeavors in creating cutting-edge technologies have led to the advancement of systems used in electric motor applications and consumer vending solutions. Each patent reflects his ability to merge practicality with technical ingenuity.

Collaborations

Yoshikazu Kokubun collaborates closely with notable colleagues such as Akihito Kurosawa and Osamu Anazawa. Their combined expertise fosters a creative environment that continues to drive the innovation process at Sanden Corporation. Together, they push the boundaries of technology, enhancing products that have a far-reaching impact in both industrial and consumer sectors.

Conclusion

Yoshikazu Kokubun's contributions through his patents illustrate the importance of innovation in engineering and technology. His work not only enhances the functionality of electric motors but also improves everyday applications like vending machines, demonstrating the significant role inventors play in advancing our technological landscape. With a strong foundation of collaboration and a commitment to excellence, Kokubun's future in the realm of inventions looks promising.

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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