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For the Inventor, By the Inventor

Shizuoka, Japan

Kazushige Sakurai

This inventor holds 30 USPTO granted patents, primarily in Electrophotographic Imaging. Top assignee: Canon Kabushiki Kaisha. Active years: 1995-2006.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazushige Sakurai. Retrieved from https://idiyas.com/inventor/kazushige-sakurai

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

USPTO Granted Patents = 30

% Patents Active = 86.7

Average Co-Inventor Count = 3.4

ph-index = 13

Forward Citations = 418(Granted Patents)


Location History:

  • Kawasaki, JP (1997)
  • Tokyo, JP (1995 - 1998)
  • Gotenba, JP (1998 - 2005)
  • Mishima, JP (2001 - 2005)
  • Shizuoka, JP (2003 - 2005)
  • Shizuoka-ken, JP (2004 - 2006)

Company Filing History:

goldMedal30 out of 92,994 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1995-2006

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Areas of Expertise:
Electrophotographic
Image Forming Apparatus
Process Cartridge
Developer Detection
Memory Device
Developing Device
Developer Amount
Charging Member
Image Developing
Control System
Storage Device
Developing Apparatus
30 patents (USPTO):Explore Patents
1. 7095967 - Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and developing unit frame (2006-08-22),
2. 7068955 - Image forming apparatus having developer amount detector (2006-06-27),
3. 7058319 - Image forming apparatus and cartridge detachably mountable thereto (2006-06-06),
4. 6925267 - MEMORY DEVICE STORING INFORMATION WARNING A USER ABOUT THE DEVELOPER-REMAINING AMOUNT, A PROCESS CARTRIDGE INCLUDING A MEMORY STORING SUCH INFORMATION, AND A CONTROL SYSTEM AND A MEMORY SYSTEM FOR WARNING A USER ABOUT THE DEVELOPER-REMAINING AMOUNT (2005-08-02),
5. 6912366 - IMAGE FORMING APPARATUS COMPRISING MEANS FOR DETECTING AN AMOUNT OF DEVELOPER CONTAINED IN A DEVELOPER CONTAINER, A MEMORY FOR STORING THE AMOUNT DETECTED BY THE DETECTING MEANS, AND CONTROL MEANS FOR UPDATING THE INFORMATION STORED IN THE MEMORY (2005-06-28),
6. 6892035 - Developing device, a process cartridge, and an electrophotographic image forming apparatus for detecting an amount of developer (2005-05-10),
7. 6859627 - Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and developing unit frame (2005-02-22),
8. 6859626 - Process cartridge having storage device which communicates with image forming apparatus (2005-02-22),
9. 6850714 - Image forming apparatus, cartridge, image forming system and storage medium (2005-02-01),
10. 6807382 - Image forming apparatus and cartridge detachably mountable thereto (2004-10-19),
11. 6694107 - Image forming apparatus and cartridge detachably mountable thereto (2004-02-17),
12. 6608975 - Image forming apparatus and cartridge detachably mountable thereto (2003-08-19),
13. 6597876 - Image forming apparatus and cartridge detachably mountable thereto (2003-07-22),
14. 6516159 - Developer amount indicating method and electrophotographic image forming apparatus (2003-02-04),
15. 6512895 - Process cartridge and electrophotographic image forming system (2003-01-28),

Title: Innovations of Kazushige Sakurai in Electrophotographic Technologies

Introduction

Kazushige Sakurai, based in Shizuoka-ken, Japan, is an accomplished inventor known for his significant contributions to the field of electrophotography. With an impressive portfolio of 30 patents, Sakurai has demonstrated expertise in developing advanced imaging technologies that enhance the efficiency and functionality of printing devices.

Latest Patents

Sakurai's latest patents include sophisticated inventions such as an image developing apparatus, a process cartridge, an electrophotographic image forming apparatus, and a developing unit frame. One noteworthy invention, the developing device, plays a crucial role in developing electrostatic latent images formed on electrophotographic photosensitive members. This innovative device is designed to be mounted to the main assembly of an electrophotographic image forming apparatus. It features components like a developer carrying member, electroconductive portions, and electrical contacts, all of which work together to detect the remaining amount of developer, enhancing the operational reliability of image formation.

Another invention, the image forming apparatus with a developer amount detector, incorporates a developer container and developer amount detecting means. This system not only measures the amount of developer but also stores and outputs relevant information, ensuring efficient utilization and management of developer materials in the printing process.

Career Highlights

Kazushige Sakurai has dedicated a significant part of his career to Canon Kabushiki Kaisha, a leading company in imaging and optical products. His role has positioned him at the forefront of innovation within the organization, where he has contributed to numerous advancements in imaging technology through his patents.

Collaborations

Throughout his career, Sakurai has worked alongside talented colleagues such as Tomomi Kakeshita and Hideki Matsumoto. Collaborating with these skilled professionals has fostered a productive environment for innovation, leading to impactful developments in electrophotographic technologies and related fields.

Conclusion

Kazushige Sakurai's body of work reflects a commitment to pushing the boundaries of technology in the imaging sector. His innovative patents not only showcase his ingenuity but also highlight his contribution to improving the functionality and efficiency of printing devices. As technology continues to advance, Sakurai's work will likely remain influential in shaping the future of electrophotography and imaging technologies.

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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