Okayama, Japan

Yohei Ishikawa

This inventor holds 3 USPTO granted patents and 1 EPO patent. Top assignees: Dowa Electronics Materials Co., Ltd., Dowa IP Creation Co., Ltd.. Active years: 2017-2023.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yohei Ishikawa. Retrieved from https://idiyas.com/inventor/yohei-ishikawa-hrvzj9in

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

Calculating rank

% Patents Active = 100.0


Average Co-Inventor Count = 2.6

ph-index = 1


Company Filing History:


Years Active: 2017-2023

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3 patents (USPTO):Explore Patents

Title: Innovator Yohei Ishikawa: Pioneering Advances in Electrophotographic Development

Introduction

Yohei Ishikawa, an inventive mind located in Okayama, Japan, has made significant contributions to the field of electrophotography. With a portfolio comprising three patents, Ishikawa has demonstrated exceptional talent in developing advanced materials that enhance printing technologies.

Latest Patents

Ishikawa's latest innovations include a patent for a carrier core material and an electrophotographic developer. The invention centers around a carrier core material composed of ferrite particles, featuring specific compositions of iron (Fe), manganese (Mn), magnesium (Mg), and calcium (Ca). This patented material excels in providing electrical resistance in various environmental conditions, ensuring consistency in performance. Furthermore, the core material enhances the toner supply during the development process, preventing damage to the photosensitive member from magnetic brushes. These innovations represent a significant advancement in the technology used for electrophotographic applications.

Career Highlights

Throughout his career, Yohei Ishikawa has been associated with reputable companies such as Dowa Electronics Materials Co., Ltd. and Dowa IP Creation Co., Ltd. His work in these establishments has led to the development of innovative materials that push the boundaries of existing electrophotographic technology, underscoring his importance to the field.

Collaborations

Ishikawa has collaborated with talented individuals such as Shinya Sasaki and Haruka Seki. Working alongside these professionals has further enhanced his capacity to innovate, driving significant advancements in material science related to electrophotography.

Conclusion

Yohei Ishikawa's contributions to electrophotography through his innovative patents illustrate his dedication to advancing technology. His work not only reflects his exceptional skills as an inventor but also hints at a promising future for developments in this field. As the industry continues to evolve, innovators like Ishikawa will undoubtedly play a crucial role in shaping the next generation of printing technologies.

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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