Tokyo, Japan

Koji Yamasaki

This inventor holds 33 USPTO granted patents and 5 published patent applications and 4 EPO patents, primarily in Adsorbent Technology. Top assignees: Hitachi, Ltd., Mahle Filter Systems Japan Corporation, Nec Corporation. Active years: 1982-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Koji Yamasaki. Retrieved from https://idiyas.com/inventor/koji-yamasaki

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

USPTO Granted Patents = 33 

% Patents Active = 84.8

 

Average Co-Inventor Count = 2.2

ph-index = 9

Forward Citations = 241(Granted Patents)


Location History:

  • Kitakyushu, JP (1991 - 1997)
  • Fukuoka, JP (1998)
  • Tsurugashima, JP (2011 - 2013)
  • Isogo-ku, KP (2015)
  • Yokohama, JP (2015 - 2017)
  • Saitama, JP (2015 - 2018)
  • Tokyo, JP (1982 - 2024)

Company Filing History:


Years Active: 1982-2025

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Areas of Expertise:
Adsorbent
Canister
Imaging Device
Display System
Storage System
Fuel Vapor Adsorbent
Grain-Oriented Steel
Signal Strength Detection
Double Loop Antenna
Video Recording Device
Intermediate Frequency Amplifier
Paging Receiver
33 patents (USPTO):Explore Patents

Title: The Innovative Mind of Koji Yamasaki

Introduction

Koji Yamasaki is a prominent inventor based in Tokyo, Japan, known for his significant contributions to the field of engineering and material science. With an impressive portfolio of 32 patents, Yamasaki has made a notable impact through his innovative designs and methods.

Latest Patents

Yamasaki's latest patents showcase his advanced thinking and technical skills. One of his key innovations is an adsorbent designed for use in a canister. This adsorbent combines activated carbon with an additive material that possesses a higher heat capacity than activated carbon itself. The unique construction features first pores derived from activated carbon that measure less than 100 nm, and second pores derived from meltable cores that exceed 1 μm. The final product is a hollow molded body with an outer diameter ranging from more than 6 mm to no more than 50 mm, reinforced with cylindrical and honeycomb walls with specific thicknesses. Notably, it achieves a volumetric specific heat of 0.08 kcal/L·°C or greater, with a ratio of second to first pore volumes between 10% and 200%.

In addition to this, Yamasaki developed a distance measuring apparatus that includes an imaging device and novel distance measuring methods. By using an interframe difference processor, this apparatus generates highly accurate distance information by calculating the differences between frames captured by a sensor image, effectively minimizing background influences.

Career Highlights

Throughout his career, Koji Yamasaki has worked with esteemed companies such as Hitachi, Ltd. and Mahle Filter Systems Japan Corporation. His expertise has been instrumental in driving forward innovations in the technologies applied in these organizations.

Collaborations

Yamasaki's journey has been enriched by collaborative efforts with talented individuals such as Mitsuo Hayasaka and Chiyo Ohno. Working together, these professionals have produced various advancements in their respective fields, underscoring the importance of teamwork in innovation.

Conclusion

Koji Yamasaki exemplifies the essence of an innovative inventor dedicated to enhancing technology and materials. His impressive patent portfolio reflects his relentless pursuit of inventive solutions, contributing significantly to advancements in engineering. Through his continuous efforts, Yamasaki inspires future generations of inventors to push the boundaries of innovation.

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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