Yokohama, Japan

Toshirou Kasamura

This inventor holds 24 USPTO granted patents, primarily in Image Formation Technology. Top assignee: Canon Kabushiki Kaisha. Active years: 1978-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshirou Kasamura. Retrieved from https://idiyas.com/inventor/toshirou-kasamura

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 = 3.9

ph-index = 13

Forward Citations = 474(Granted Patents)


Location History:

  • Kawasaki, JA (1978)
  • Kawasaki, JP (1979)
  • Yokohama, JP (1979 - 1990)

Company Filing History:


Years Active: 1978-1990

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Areas of Expertise:
Image Forming Apparatus
Developing Device
Sheet Conveying
Automatic Feeding
Double-Side Printing
Multicolor Imaging
Magnetic Brush
Cleaning Apparatus
Optical Mechanism
Developer Container
Area Designation
Sheet Stacking
24 patents (USPTO):Explore Patents

Title: Innovations of Toshirou Kasamura: A Pioneer in Imaging Technology

Introduction: Toshirou Kasamura, an esteemed inventor based in Yokohama, Japan, has made significant contributions to the field of imaging technology. With a remarkable portfolio of 24 patents, he has showcased his innovative spirit and technical expertise, particularly in developing advanced image forming apparatuses.

Latest Patents: Among his notable inventions are two recent patents focused on enhancing image forming mechanisms. The first patent details a sophisticated image forming apparatus that incorporates a unique device accommodating system. This innovation features an image bearing member and an image forming station designed to efficiently guide a developing device through a horizontal conveying passage. A sophisticated moving mechanism is employed to streamline the interaction between the developing device and the main body of the apparatus, ensuring seamless operation. The device also accommodates multiple developing devices through a vertically structured accommodating case, further enhancing its functionality.

The second patent presents an image forming apparatus that facilitates continuous movement of the developing device. This apparatus is designed with a passage allowing the device to navigate between an inside position and an outside position, enhancing accessibility and ease of use. The implementation of an automatic driver and pressing mechanisms ensures efficient operation and reliable image development.

Career Highlights: Toshirou Kasamura has dedicated his career to innovative advancements at Canon Kabushiki Kaisha. His work there has not only contributed to the company’s reputation for quality imaging products but has also advanced research in mechanical engineering related to imaging technologies. His inventions reflect a deep understanding of both theoretical and practical aspects of image development.

Collaborations: Throughout his career, Toshirou has worked alongside esteemed colleagues such as Nobukazu Sasaki and Masashi Ohashi. Their collaborations have fostered a rich exchange of ideas, leading to breakthroughs in image technology that continue to influence the industry.

Conclusion: Toshirou Kasamura stands out as a prominent inventor in the realm of imaging technology. His extensive patent portfolio and collaborative efforts have propelled advancements in this field, showcasing his commitment to innovation and excellence in engineering. As Canon Kabushiki Kaisha continues to leverage his inventions, the impact of his work is sure to resonate throughout the imaging industry for years to come.

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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