Iwata, Japan

Kazuhiko Yoshida

This inventor holds 31 USPTO granted patents and 3 published patent applications and 5 EPO patents, primarily in Constant Velocity Joints. Top assignees: Ntn Corporation, Sumitomo Metal Industries, Inc., Jfe Steel Corporation. Active years: 1998-2024.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiko Yoshida. Retrieved from https://idiyas.com/inventor/kazuhiko-yoshida

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

USPTO Granted Patents = 31 

% Patents Active = 58.1

 

Average Co-Inventor Count = 3.4

ph-index = 8

Forward Citations = 168(Granted Patents)


Location History:

  • Hukurol, JP (2000)
  • Fukuroi, JP (1998 - 2004)
  • Shizuoka-ken, JP (2001 - 2008)
  • Iwata, JP (1998 - 2014)
  • Shizuoka, JP (2007 - 2024)

Company Filing History:


Years Active: 1998-2024

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Areas of Expertise:
Constant Velocity Joint
Power Transmission Shaft
Bearing Device
Hollow Shaft
Torque-Detecting Device
Wheel Bearing
Manufacturing Method
Rolling Groove
Carburizing Steel
Cage Component
Drive Shaft
Fixed Type Joint
31 patents (USPTO):Explore Patents

Title: Innovations by Kazuhiko Yoshida: A Pioneer in Automotive Technology

Introduction

Kazuhiko Yoshida, an accomplished inventor based in Iwata, Japan, holds an impressive portfolio of 31 patents. His work has significantly contributed to advancements in the automotive industry, particularly in the development of coatings and components that enhance the performance and durability of vehicles.

Latest Patents

Among his notable recent patents is a method for forming a coating film on constant velocity universal joints. This innovation allows for the creation of a coating film with excellent adhesion without requiring a chemical conversion film treatment as an undercoat. By utilizing powder-coating techniques, a metal automotive part is treated to form a resilient skin film that enhances its longevity.

Another recent invention is the design of a hollow shaft compatible with constant velocity universal joints. This design not only improves the static torsional strength and torsional fatigue strength of its smaller diameter sections but also reduces manufacturing costs. The hollow shaft undergoes a specialized manufacturing process that includes quench hardening treatment, ensuring enhanced performance and reliability.

Career Highlights

Kazuhiko Yoshida has had a remarkable career, contributing his expertise to reputable companies such as NTN Corporation and Sumitomo Metal Industries, Inc. His innovative spirit and commitment to automotive engineering have positioned him as a key player in the advancement of manufacturing technologies within the industry.

Collaborations

Throughout his career, Yoshida has collaborated with other talented individuals, including notable coworkers Akira Wakita and Tatsuhiro Goto. These partnerships have fostered a collaborative environment where innovative ideas can flourish, leading to breakthroughs in automotive technology.

Conclusion

Kazuhiko Yoshida's extensive patent portfolio and his innovative contributions significantly impact the automotive sector. His work serves as an inspiration for aspiring inventors and underscores the importance of continuous innovation in developing advanced technologies for the automotive 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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