Machida, Japan

Masashi Hirose

USPTO Granted Patents = 59 

 

Average Co-Inventor Count = 5.4

ph-index = 17

Forward Citations = 653(Granted Patents)

Forward Citations (Not Self Cited) = 579(Oct 12, 2025)


Inventors with similar research interests:


Location History:

  • Hachioji, JP (2001)
  • Tokyo, JP (1999 - 2009)
  • Machida, JP (2002 - 2018)
  • Suntou-gun, JP (2021)

Company Filing History:


Years Active: 1999-2021

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59 patents (USPTO):

Title: Innovations by Masashi Hirose: Patents Transforming Toner Technology

Introduction

Masashi Hirose, a prominent inventor based in Machida, Japan, has made significant contributions to the field of toner technology. With an impressive portfolio of 59 patents, Hirose is known for his innovative solutions that enhance the performance and efficiency of toner applications.

Latest Patents

His latest patents focus on the development of advanced toner additives. One notable patent describes a toner external additive that contains a base material surface-treated with an isocyanurate ring-bearing silane coupling agent. This breakthrough additive improves the overall quality of toner, facilitating better application in printing technology. Additionally, Hirose has developed a compound that enhances the dispersibility of pigments in non-water-soluble solvents. This compound encompasses a pigment dispersant, pigment composition, pigment dispersion, and toner, incorporating a polymer bonded to a monoazo compound, thus revolutionizing pigment utility in the industry.

Career Highlights

Throughout his career, Hirose has been associated with Canon Kabushiki Kaisha, a leader in imaging and printing technology. His relentless pursuit of innovation has not only elevated Canon’s product offerings but also contributed to advancements in toner and printing solutions that meet growing market demands.

Collaborations

Hirose has collaborated with esteemed colleagues, including Yasuaki Murai and Takayuki Toyoda. Their collective expertise has led to significant advancements in toner formulations and applications, showcasing the power of teamwork in driving innovation forward.

Conclusion

Masashi Hirose stands out as a pioneering inventor, consistently pushing the boundaries of toner technology. His substantial patent portfolio, coupled with strategic collaborations, underscores his commitment to excellence and innovation in this dynamic field. As technology continues to evolve, Hirose's contributions will undoubtedly leave a lasting impact on the industry.

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