Yokohama, Japan

Takeshi Takada

This inventor holds 22 USPTO granted patents and 1 EPO patent, primarily in Electrophotographic Technology. Top assignees: Ricoh Company, Ltd., Mitsubishi Denki Kabushiki Kaisha, Yamanashi Electronics Co., Ltd.. Active years: 2005-2012.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takeshi Takada. Retrieved from https://idiyas.com/inventor/takeshi-takada-d2pqrk6v

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

Calculating rank

% Patents Active = 40.9


Average Co-Inventor Count = 3.9

ph-index = 9

Forward Citations = 222(Granted Patents)


Location History:

  • Shizuoka, JP (2005 - 2007)
  • Numazu, JP (2006 - 2008)
  • Kanagawa, JP (2008)
  • Tokyo, JP (2007 - 2010)
  • Yokohama, JP (2007 - 2012)

Company Filing History:


Years Active: 2005-2012

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Areas of Expertise:
Electrophotographic Photoconductor
Image Forming Apparatus
Toner Development
Electrostatic Latent Image
Process Cartridge
Solar Cell Unit
Toner Manufacturing
Electrostatic Development
22 patents (USPTO):Explore Patents

Title: Innovations of Takeshi Takada: Pioneering Electrophotographic Technologies

Introduction

Takeshi Takada, a prolific inventor based in Yokohama, Japan, has made significant contributions to the field of electrophotography. With a remarkable portfolio of 22 patents, his work reflects a deep understanding of photoconductive materials and image forming technologies.

Latest Patents

Among his latest innovations are two notable patents. The first is for an **electrophotographic photoconductor**, which features a conductive support and a photosensitive layer. This layer incorporates a charge generation agent, a charge transport agent, and a binder resin, where the charge generation agent includes an asymmetric disazo pigment and the charge transport agent comprises a triphenylamine compound. The specific mass ratio of the charge transport agent to the binder resin is meticulously detailed, enhancing the efficacy of the photoconductor.

The second recent patent is an **image forming apparatus and image forming method**. This apparatus integrates several components, including an electrophotographic photoconductor, a latent electrostatic image forming unit, and various processing units. Notably, the outermost layer of the electrophotographic photoconductor has a glass transition temperature of 100°C or more, showcasing advances in material performance and functionality.

Career Highlights

Takeshi Takada's career features significant tenure at two leading companies in technology and manufacturing. He has worked with Ricoh Company, Ltd. and Mitsubishi Denki Kabushiki Kaisha, where he honed his expertise in developing advanced electrophotographic systems and contributed to innovations that have influenced the industry.

Collaborations

Throughout his career, Takeshi has collaborated with esteemed colleagues, including Chiaki Tanaka and Naohiro Watanabe. These partnerships have fostered a creative environment that has propelled the development of groundbreaking technologies in the field of electrophotography.

Conclusion

Takeshi Takada stands out as a key innovator in the realm of electrophotographic technologies. His extensive patent portfolio and collaborative efforts reflect his dedication to advancing the capabilities of imaging solutions, making him a prominent figure in the world of inventions and innovations.

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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