Kariya, Japan

Toshio Ishikawa

This inventor holds 2 USPTO granted patents. Top assignees: Tris Inc., Denso Corporation. Active years: 2004-2005.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshio Ishikawa. Retrieved from https://idiyas.com/inventor/toshio-ishikawa-fdqqt4ir

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


% Patents Active = 50.0

Average Co-Inventor Count = 6.7

ph-index = 1

Forward Citations = 6(Granted Patents)


Location History:

  • Aichi, JP (2004)
  • Kariya Aichi, JP (2005)

Company Filing History:


Years Active: 2004-2005

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2 patents (USPTO):Explore Patents

Title: Innovator Toshio Ishikawa: Pioneering Metal-Graphite Brush Technologies

Introduction

Toshio Ishikawa is a notable inventor hailing from Kariya Aichi, Japan. With a focus on innovative brush technologies, he has secured two patents that contribute significantly to the field of electrical engineering and components.

Latest Patents

Ishikawa's latest patents are centered around metal-graphite brushes. The first patent describes a metal-graphite brush that consists of a brush body formed by mixing and molding metal powder with graphite powder. This specific design incorporates 2 mg to 30 mg of phosphate ions derived from either phosphoric acid or a phosphate compound, added to 1 g of the brush body. The second patent details the composition of the brush body, distinguishing between a Pb-less commutator side that includes graphite, copper, and a solid lubricant, as well as a lead side portion integrated with graphite, copper, the lubricant, and lead.

Career Highlights

Throughout his career, Ishikawa has made impactful contributions while working at prominent companies, notably Tris Inc. and Denso Corporation. His role in these organizations has been instrumental in developing advanced technologies that benefit numerous industries.

Collaborations

Ishikawa's work has allowed him to collaborate with talented colleagues, including Takayoshi Otani and Mitsuo Ikeda. Together, they have cultivated a rich environment for innovation and have pushed the boundaries of what is possible in brush technology.

Conclusion

Toshio Ishikawa continues to be a significant figure in the realm of invention, particularly with his advancements in metal-graphite brush technologies. His patents not only reflect his expertise but also ensure that he remains a valuable contributor to the evolving landscape of electrical components.

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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