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For the Inventor, By the Inventor

Nagoya, Japan

Masahito Yoshikawa

This inventor holds 12 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Toray Industries, Inc., California Institute of Technology, Toudai Tlo, Ltd.. Active years: 2000-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahito Yoshikawa. Retrieved from https://idiyas.com/inventor/masahito-yoshikawa

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

USPTO Granted Patents = 12 

% Patents Active = 50.0


Average Co-Inventor Count = 2.8

ph-index = 3

Forward Citations = 42(Granted Patents)


Location History:

  • Aichi, JP (2003 - 2010)
  • Nagoya, JP (2000 - 2015)

Company Filing History:

goldMedal10 out of 3,578 
 
Toray Industries, Inc.
 patents
silverMedal2 out of 4,625 
 
California Institute of Technology
 patents
bronzeMedal2 out of 41 
 
Toudai Tlo, Ltd.
 patents
where one patent can have more than one assignee

Years Active: 2000-2015

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12 patents (USPTO):Explore Patents
1. 9028790 - Carbon nanotube assembly and electrically conductive film (2015-05-12),
2. 8834826 - Aggregate of carbon nanotubes, dispersion thereof and conductive film using the same (2014-09-16),
3. 8758716 - Composition containing single-walled nanotubes (2014-06-24),
4. 8128900 - Process for producing single-walled carbon nanotube, single-walled carbon nanotube, and composition containing single-walled carbon nanotube (2012-03-06),
5. 7704482 - Process for producing carbon nanotube and catalyst for carbon nanotube production (2010-04-27),
6. 6878264 - Process for conversion of organic compounds (2005-04-12),
7. 6822129 - Method of converting aromatic compound (2004-11-23),
8. 6635233 - CFI-type zeolite, process for preparation of the same, catalyst prepared from the same, and process for conversion of organic compounds (2003-10-21),
9. 6503294 - Permeable membrane and method (2003-01-07),
10. 6262322 - Adsorbent for aromatic isomers and production of aromatic isomers (2001-07-17),
11. 6043179 - Zeolite CIT-5 and method of making (2000-03-28),
12. 6040258 - Zeolite CIT-5 and method of making (2000-03-21),

Title: **Masahito Yoshikawa: Innovating with Carbon Nanotubes**

Introduction

Masahito Yoshikawa is a distinguished inventor based in Nagoya, Japan, known for his significant contributions in the field of materials science, particularly regarding carbon nanotubes. With a portfolio comprising 12 patents, Yoshikawa's innovations exemplify the forefront of technological development in conductive materials.

Latest Patents

Among his latest patents, Yoshikawa has developed groundbreaking methods related to carbon nanotube assembly and electrically conductive films. One key patent describes an aggregate of carbon nanotubes created through a specific process involving a mixture of sodium polystyrene sulfonate, water, and ultrasonic homogenization. This innovative approach yields a dispersion with a high concentration of carbon nanotubes, exhibiting excellent dispersibility. Another significant patent presents an aggregate of carbon nanotubes characterized by specific properties determined through X-ray powder diffraction and Raman spectroscopic analysis. This aggregate offers exceptional dispersibility and high quality, leading to the production of films, molded articles, and membranes with superior characteristics.

Career Highlights

Yoshikawa's career has been marked by his tenure at prominent organizations such as Toray Industries, Inc. and the California Institute of Technology. His work in these institutions has significantly contributed to the advancement of conductive materials technology, reinforcing his reputation as a leading figure in his field.

Collaborations

Throughout his career, Yoshikawa has collaborated with notable colleagues, including Kenichi Sato and Kazuyoshi Iwayama, whose combined expertise has further enriched the development and application of innovative materials in various industries.

Conclusion

In conclusion, Masahito Yoshikawa stands out as an influential inventor whose work with carbon nanotubes has opened new avenues in material science. His patented technologies not only showcase his ingenuity but also pave the way for advancements that can benefit numerous sectors, ultimately enhancing product performance and functionality.

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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