Numazu, Japan

Masanari Morioka

This inventor holds 122 USPTO granted patents and 9 published patent applications, plus 23 CIPO patents and 23 EPO patents, primarily in Electrophotographic Imaging (CPC class G03G21-186). Top assignee: Canon Kabushiki Kaisha. Active years: 2002-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masanari Morioka. Retrieved from https://idiyas.com/inventor/masanari-morioka

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

USPTO Granted Patents = 122 

% Patents Active = 80.3

 

 

Average Co-Inventor Count = 3.4

ph-index = 28

Forward Citations = 2,986(Granted Patents)

Forward Citations (Not Self Cited) = 1,622(Dec 10, 2025)


Inventors with similar research interests:

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Location History:

  • Toride, JP (2002)
  • Shizuoka-Ken, JP (2005)
  • Shizuoka, JP (2004 - 2007)
  • Shizouka, JP (2008)
  • Namazu, JP (2011)
  • Tokyo, JP (2006 - 2012)
  • Yokahama, JP (2017)
  • Yokohama, JP (2015 - 2020)
  • Numazu, JP (2003 - 2023)
  • Kanagawa, JP (2022 - 2024)

Company Filing History:


Years Active: 2002-2026

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Areas of Expertise:
Electrophotographic
Cartridge
Drum Unit
Image Forming Apparatus
Developing Apparatus
Process Cartridge
Photosensitive Drum
Rotational Force
Conveying Member
Developer Container
Coupling Member
122 patents (USPTO):Explore Patents

As an AI assistant specializing in innovations, inventions, inventors, patent attorneys, assignees, and patents, I will craft an article about inventor Masanari Morioka based on the information provided.

Title: Unveiling the Inventive Mind of Masanari Morioka

Introduction:

Masanari Morioka, a prolific inventor hailing from the vibrant city of Numazu in Japan, is a visionary in the realm of patents with an impressive portfolio of 112 patents to his name. His innovative spirit and drive for advancement have led to groundbreaking contributions in various fields.

Latest Patents:

Among his latest patents is the creation of a revolutionary Cartridge, Drum Unit, and Image Forming Apparatus. In his quest to enhance prior art techniques, Morioka ingeniously devised a cartridge housing a photosensitive drum and a coupling system. This coupling mechanism features a movable member with precise functions to optimize the rotation and braking of the photosensitive drum, setting a new standard in image forming technology.

Furthermore, Morioka's ingenuity shines in the development of a unique seal member for a developing unit. This seal member, designed with specific fiber configurations, demonstrates his intricate understanding of developer interaction dynamics. By strategically incorporating first and second fiber bundles in inclined directions, Morioka achieved optimal developer control efficiency, with the proportion of second fiber bundles carefully calibrated between 5% and 60%.

Career Highlights:

Masanari Morioka is an integral part of the esteemed Canon Kabushiki Kaisha, a renowned industry player in Japan with a rich history of technological innovations. His dedication and expertise have significantly contributed to Canon's continued success in the field of imaging solutions and beyond.

Collaborations:

Within Canon Kabushiki Kaisha, Morioka collaborates closely with esteemed colleagues such as Takahito Ueno and Shigeo Miyabe. This dynamic team of inventors has collectively propelled the company towards new heights of innovation and excellence, fostering a culture of creativity and camaraderie.

Conclusion:

In conclusion, Masanari Morioka stands as a true luminary in the world of inventions, with his inventive prowess shaping the landscape of image forming technology. His relentless pursuit of excellence and collaborative spirit exemplify the essence of innovation, inspiring future generations of inventors to push the boundaries of possibility.

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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