Toyohashi, Japan

Junichi Hashimoto

This inventor holds 175 USPTO granted patents and 1 published patent application, plus 3 CIPO patents and 21 EPO patents, primarily in Developing Cartridge (CPC class G03G21-1647). Top assignees: Brother Kogyo Kabushiki-Kaisha, Pentel Kabushiki Kaisha, Konica Minolta Business Technologies, Inc.. Active years: 1980-2026.

USPTO Granted Patents = 175 

% Patents Active = 88.6


 

Average Co-Inventor Count = 2.2

ph-index = 12

Forward Citations = 676(Granted Patents)

Forward Citations (Not Self Cited) = 581(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Saitama, JP (1980 - 1982)
  • Yokohama, JP (1994 - 1997)
  • Tokyo, JP (1983 - 2009)
  • Aichi, JP (2012 - 2013)
  • Toyohashi, JE (2016)
  • Chigasaki, JP (2016)
  • Toyohashi, JP (2006 - 2024)

Company Filing History:


Years Active: 1980-2026

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Areas of Expertise:
Developing Cartridge
Image Forming Apparatus
Toner Agitation
Drum Unit
Electrode Contact
Cleaning Operation
Casing Design
Agitator Configuration
Photosensitive Drum
Conveyor Member
Pivot Motion
Inclined Surfaces
175 patents (USPTO):Explore Patents

Title: Junichi Hashimoto: A Prolific Inventor Pushing Boundaries in the Printing Industry

Introduction:

Junichi Hashimoto, a highly accomplished inventor hailing from Toyohashi, Japan, has made significant contributions to the field of printing technology. With an impressive tally of 137 patents to his name, Hashimoto continues to revolutionize the industry with his innovative ideas and groundbreaking inventions. In this article, we delve into his latest patents, career highlights, notable collaborations, and the impact of his work on the printing sector.

Latest Patents:

Hashimoto's latest patents demonstrate his expertise and ingenuity in developing advanced printing technologies. One notable invention is the "Developing cartridge including movable plate for moving holder holding electrical contact surface." This cartridge allows for precise movement of electrical contact surfaces, optimizing print quality and performance. Another recent patent is the "Developing cartridge including shaft and cam having cam surface." This invention enhances the functioning of developing cartridges by utilizing a cam surface that aids in axial movement, resulting in improved printing processes.

Career Highlights:

Throughout his career, Hashimoto has worked with renowned companies such as Brother Industries Ltd. and Konica Minolta Business Technologies, Inc. His collaboration with Brother Industries Ltd., an established multinational corporation, has further strengthened his position as a leading innovator in the printing industry. Hashimoto's contributions have played a vital role in the development of cutting-edge printing technologies, cementing his reputation as a visionary inventor.

Collaborations:

Hashimoto has had the privilege of collaborating with accomplished professionals in his field, including Isao Kishi and Yasushi Okabe. Collaborative efforts with these esteemed individuals have resulted in synergistic innovation and the creation of revolutionary printing solutions. Hashimoto's collaborative spirit underscores his commitment to pushing the boundaries of what is possible in the printing industry and fostering a culture of creativity and shared knowledge.

Conclusion:

Junichi Hashimoto's extensive patent portfolio and remarkable career in the printing industry exemplify his relentless pursuit of innovation. Through his latest patents, Hashimoto demonstrates his ability to address key challenges and pioneer advancements in printing technology. His collaborations with esteemed colleagues have yielded remarkable results and further solidify his status as a luminary in the field. As Hashimoto continues to push the boundaries of what is possible, he is actively shaping the future of printing technology and leaving an indelible mark on the industry.

For more information on Junichi Hashimoto and other inventors, patents, and innovations, visit our website, idiyas.com – your premier resource for all things related to inventions and patents.

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