Nagano, Japan

Yoshio Yamada

This inventor holds 23 USPTO granted patents and 3 published patent applications and 5 EPO patents, primarily in Food Freezing Technology. Top assignees: Nhk Spring Co., Ltd., Technican Company Ltd., Daido Kogyo Co., Ltd.. Active years: 1991-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshio Yamada. Retrieved from https://idiyas.com/inventor/yoshio-yamada-9wzredgd

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

Calculating rank
USPTO Granted Patents = 23 

% Patents Active = 78.3

 

Average Co-Inventor Count = 1.9

ph-index = 6

Forward Citations = 102(Granted Patents)


Location History:

  • Higashiyamato, JP (1992 - 1993)
  • Kanagawa Pref., JP (1997)
  • Nagano, JP (2003 - 2018)
  • Kanagawa, JP (1991 - 2020)
  • Yokohama, JP (1995 - 2024)

Company Filing History:


Years Active: 1991-2025

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Areas of Expertise:
Continuous Freezing Device
Quick-Freezing Method
Probe Card
Electrical Test Probe
Tensioner
Spring Member
Food Freezer
Agitator
Contact Structure Unit
Electroconductive Contactor
Semiconductor Wafer
Buried Marker
23 patents (USPTO):Explore Patents

Title: Innovations of Yoshio Yamada

Introduction

Yoshio Yamada is a prominent inventor based in Nagano, Japan, recognized for his contributions to the field of mechanical engineering. With a remarkable portfolio of 23 patents, Yamada has developed innovative solutions that address various engineering challenges.

Latest Patents

Yamada's recent patents include advancements such as the "Spring Member," which incorporates a conductive plate and a support plate. The conductive plate is designed using a material with superior electrical and thermal conductivity compared to the support plate, which boasts a higher Young's modulus. Furthermore, specific contact portions facilitate interaction with pressed bodies, optimizing functionality.

Another notable invention is a "Tensioner" that features a movable section, fixed section, flat spiral spring, and back-up spring. This design enables effective load management from an entrained transmission body, ensuring efficient operation through biasing mechanisms. The innovative tensioner allows for variations in friction force based on load and biasing conditions, contributing to enhanced performance.

Career Highlights

Throughout his career, Yoshio Yamada has been associated with leading companies in the industry, including NHK Spring Co., Ltd. and Technican Company Ltd. His work in these organizations has been instrumental in the development of advanced engineering solutions.

Collaborations

Yamada has collaborated with esteemed colleagues, including Hiroshi Nakayama and Mitsuhiro Nagaya, furthering the impact of his innovations in the field. Their combined expertise has facilitated the successful realization of several significant projects.

Conclusion

Yoshio Yamada's contributions to mechanical engineering through his numerous patents highlight his innovative spirit and commitment to excellence. As he continues to push the boundaries of technology, his work remains a vital part of advancing engineering solutions worldwide.

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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