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For the Inventor, By the Inventor

Mishima, Japan

Hisayoshi Kojima

USPTO Granted Patents = 41

 

Average Co-Inventor Count = 3.0

ph-index = 23

Forward Citations = 1,833(Granted Patents)


Location History:

  • Yokohama, JP (1993 - 1997)
  • Shizuoka, JP (2003 - 2006)
  • Mishima, JP (1999 - 2022)

Company Filing History:

goldMedal41 out of 90,697 
 
Canon Kabushiki Kaisha
 patents

Years Active: 1993-2022

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Areas of Expertise:
Toner Cartridge
Image Forming Apparatus
Electrophotographic Technology
Developing Apparatus
Process Cartridge
Cleaning Apparatus
Developer Supply Container
Toner Replenishing Control
Image Carrier
Electrostatic Photosensitive Drum
Image Forming System
Cartridge Coupling Member
41 patents (USPTO):Explore Patents
1. 11506993 - Toner cartridge and toner supplying mechanism (2022-11-22),
2. 11366409 - Toner cartridge and toner supplying mechanism (2022-06-21),
3. 11360408 - Toner cartridge and toner supplying mechanism (2022-06-14),
4. 10884356 - Toner cartridge and toner supplying mechanism (2021-01-05),
5. 10747144 - Toner cartridge and toner supplying mechanism (2020-08-18),
6. 10613453 - Toner cartridge and toner supplying mechanism (2020-04-07),
7. D519150 - Image forming apparatus (2006-04-18),
8. 7003233 - Image forming apparatus with a toner replenishing control feature based on stored toner density and fluidity information, related method, and developing agent replenishing container for same (2006-02-21),
9. 6839534 - Image forming apparatus and developer supply container removably mountable in image forming apparatus (2005-01-04),
10. 6608980 - Electrophotographic image forming apparatus to which a process cartridge is detachably mountable and process cartridge comprising cartridge drum positioning portion or recess (2003-08-19),
11. 6587660 - Developing apparatus (2003-07-01),
12. 6577831 - ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS TO WHICH A PROCESS CARTRIDGE IS DETACHABLY MOUNTABLE AND PROCESS CARTRIDGE HAVING A SUPPORTING MEMBER FOR ROTATABLY SUPPORTING A DEVELOPING ROLLER AT A POSITION AWAY FROM THE CENTER OF ROTATION THEREOF (2003-06-10),
13. 6564029 - Cartridge having developer supply opening and image forming apparatus usable therewith (2003-05-13),
14. 6463242 - Developing device, process cartridge and electrophotographic image forming apparatus (2002-10-08),
15. 6463233 - Process cartridge having first and second cartridge guiding portions and an electrophotographic image forming apparatus to which the process cartridge is attached (2002-10-08),

Title: Innovations by Hisayoshi Kojima: A Closer Look at His Contributions to Toner Technology

Introduction

Hisayoshi Kojima, based in Mishima, Japan, is a notable inventor with a remarkable portfolio of 41 patents. His work primarily focuses on improving the functionality and efficiency of toner cartridges, a crucial component in printing technology.Through his inventions, Kojima has contributed significantly to the innovation landscape in the field of printing.

Latest Patents

His latest innovations include two patents regarding toner cartridges and toner supplying mechanisms. These patents aim to enhance the conventional structure of toner cartridges, which includes essential components such as a container and an open/close member. The container is designed with an accommodating portion, a discharge opening, and a cartridge side guide to facilitate ease of use. The open/close member includes both a closing portion and an engaging portion that can be moved between a closing and an opening position. When the toner cartridge is dismounted from a receiving apparatus, the engaging portion receives a force that allows the open/close member to move towards the closing position, engaging with the receiving apparatus side guide. This innovation ensures a more efficient and user-friendly experience in handling toner cartridges.

Career Highlights

Kojima is associated with Canon Kabushiki Kaisha, a leading company in imaging and printing solutions. His contributions to the company are significant, as his inventions have helped to refine and advance their products. Being a prolific inventor, his work not only enhances product quality but also exemplifies the importance of ongoing innovation in the technology sector.

Collaborations

Throughout his career, Kojima has collaborated with esteemed colleagues, including Kazunari Murayama and Atsushi Numagami. The teamwork and collective expertise of these professionals have played a pivotal role in driving innovative solutions within the company, showcasing the importance of collaboration in achieving great advancements in technology.

Conclusion

Hisayoshi Kojima’s contributions to the field of printing technology, particularly in the arena of toner cartridges, underline his status as a vital inventor. With a substantial number of patents to his name, his innovative spirit continues to influence the industry, paving the way for enhanced printing solutions and improved user experiences. The work of Kojima and his collaborators at Canon Kabushiki Kaisha marks an exciting chapter in the evolution of printing technology.

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