Ibaraki, Japan

Hisashi Nakajima

This inventor holds 1 USPTO granted patent. Top assignee: Hitachi Koki Co., Ltd.. Active years: 2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hisashi Nakajima. Retrieved from https://idiyas.com/inventor/hisashi-nakajima-qcuckffe

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


% Patents Active = 100.0

Average Co-Inventor Count = 5.0

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:


Years Active: 2002

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1 patent (USPTO):Explore Patents

Title: Hisashi Nakajima: Innovator in Electrophotographic Technology

Introduction

Hisashi Nakajima is a prominent inventor based in Ibaraki, Japan. He is known for his significant contributions to the field of electrophotography. His innovative work has led to advancements in printing technology, particularly in enhancing printing density control.

Latest Patents

Hisashi Nakajima holds a patent for an "Electrophotographic apparatus having a printing density controller for dropout and non-dropout color." This invention provides a printing density controller that allows for adjustments in a range from dropout color to non-dropout color. This capability enables electrophotographic printing apparatuses to conduct light and shade adjustments of printing density across a broad spectrum, effectively addressing the challenges of dropout color printing. He has 1 patent to his name.

Career Highlights

Nakajima has made a significant impact in his field through his work at Hitachi Koki Co., Ltd. His role at the company has allowed him to collaborate with other talented professionals and contribute to innovative projects in printing technology.

Collaborations

Some of his notable coworkers include Hiroshi Ueno and Koutarou Yamada. Their collaboration has fostered an environment of creativity and innovation, leading to advancements in their respective fields.

Conclusion

Hisashi Nakajima's contributions to electrophotographic technology exemplify the importance of innovation in enhancing printing processes. His work continues to influence the industry and inspire future advancements.

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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