Koriyama, Japan

Masaki Okubo

This inventor holds 12 USPTO granted patents and 6 EPO patents. Top assignees: Hodogaya Chemical Co., Ltd., Nippon Aerosil Co., Ltd., Ricoh Company, Ltd.. Active years: 1994-2017.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaki Okubo. Retrieved from https://idiyas.com/inventor/masaki-okubo

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


% Patents Active = 66.7

 

Average Co-Inventor Count = 5.4

ph-index = 4

Forward Citations = 43(Granted Patents)


Location History:

  • Ushiku, JP (1994)
  • Fukushima, JP (2006 - 2011)
  • Koriyama, JP (2003 - 2013)
  • Tsukuba, JP (2015)
  • Ibaraki, JP (2015 - 2017)
  • Tokyo, JP (2017)

Company Filing History:


Years Active: 1994-2017

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12 patents (USPTO):Explore Patents

Title: Masaki Okubo: Innovator in Charge Control Technologies

Introduction

Masaki Okubo, an influential inventor based in Koriyama, Japan, holds an impressive portfolio of 12 patents. His pioneering work primarily focuses on developing charge control agents and toners, addressing essential characteristics for electrostatic image development.

Latest Patents

Among his notable inventions are advancements in charge control agents and toner formulations. One of his key patents details a charge control agent comprising a bis-phthalimide derivative that significantly enhances the charging characteristics. This innovation allows for a safe, negatively chargeable control agent that increases charge rise rates while complying with waste regulations. Additionally, his development of a toner incorporates a charge control agent with resorcin derivatives, promising superior electrostatic performance.

Career Highlights

Okubo has worked with reputable companies, including Hodogaya Chemical Co., Ltd. and Ricoh Company, Ltd. His tenure in these organizations significantly contributed to his expertise and understanding of charge control technologies.

Collaborations

Throughout his career, Okubo has collaborated with esteemed colleagues such as Hideyuki Otsuka and Masami Ito. These collaborations have fostered an environment of innovation, leading to breakthroughs in toner and developer technologies.

Conclusion

Masaki Okubo's contributions to the field of electrostatic image development have established him as a key figure in innovation. His patents not only demonstrate his technical prowess but also reflect his commitment to enhancing charge control agents and toners, ultimately benefiting the industry.

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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