Kanagawa, Japan

Akio Tsujita

This inventor holds 13 USPTO granted patents and 1 EPO patent. Top assignees: Ricoh Company, Ltd., Hitachi Koki Co., Ltd., Ricoh Printing Systems, Ltd.. Active years: 1991-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akio Tsujita. Retrieved from https://idiyas.com/inventor/akio-tsujita

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


% Patents Active = 46.2


Average Co-Inventor Count = 4.1

ph-index = 4

Forward Citations = 39(Granted Patents)


Location History:

  • Katsuta, JP (1991)
  • Hitachinaka, JP (1997 - 2008)
  • Ibaraki, JP (2000 - 2011)
  • Kanagawa, JP (2013 - 2015)

Company Filing History:


Years Active: 1991-2015

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13 patents (USPTO):Explore Patents

Title: The Innovative Journey of Akio Tsujita

Introduction

Akio Tsujita, an accomplished inventor based in Kanagawa, Japan, has made significant contributions to the field of imaging technology. With a remarkable portfolio of 13 patents, Tsujita's work primarily focuses on advancements in toner and image forming methods.

Latest Patents

Among his latest innovations is a toner that includes petroleum wax, particularly a paraffin wax exhibiting polarity. This invention also features a method of preparing printed material and an innovative image forming apparatus equipped with varnish application means. In his recent patent, Tsujita explores an image forming method that combines a toner composed of a wax with polar groups and includes applying a varnish to enhance the image. The wax variants include plant waxes with ester groups, oxidized waxes, or mixtures of these compositions. The varnish used in this innovative approach may contain surfactants, like polyoxyethylene glycol, and is often photocurable.

Career Highlights

Akio Tsujita has carved a significant niche while working with leading companies such as Ricoh Company, Ltd. and Hitachi Koki Co., Ltd. His tenure in these organizations allowed him to collaborate on groundbreaking projects that have furthered the capabilities of image processing and printing technologies.

Collaborations

Throughout his career, Tsujita has had the privilege of working alongside talented individuals, including Shinya Kobayashi and Tadashi Kasai. This collaborative environment has facilitated the exchange of ideas and innovation, enhancing the development of technology relating to toners and image forming techniques.

Conclusion

Akio Tsujita’s work in the field of inventions, particularly in toner and image forming technologies, continues to impact the industry. His numerous patents showcase not only his innovative thinking but also his commitment to advancing technology. As imaging technologies evolve, the contributions of inventors like Tsujita remain invaluable.

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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