Company Filing History:

15 out of 28,577

Ricoh Company, Ltd.

Years Active: 1992-2013

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16 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8535116 - Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the same (2013-09-17),

2. 8500615 - Magnetic roller and manufacturing method thereof, developer carrier, development device, processing cartridge, and image forming apparatus (2013-08-06),

3. 8135316 - Development roller, development device, process cartridge and image forming device (2012-03-13),

4. 8133161 - Conductive member, process cartridge, and image forming apparatus (2012-03-13),

5. 8105672 - Electroconductive member, process cartridge, and image forming apparatus (2012-01-31),

6. 8041259 - Conductive member, process cartridge including same, and image forming apparatus including the process cartridge (2011-10-18),

7. 8023867 - Magnet roller and method for the same, magnetic particle-support member, development device, process cartridge, and image forming apparatus (2011-09-20),

8. 7917067 - Magnetic field generating member and manufacturing method thereof, magnetic particle support body, image development device, process cartridge and image forming apparatus (2011-03-29),

9. 7907876 - Developer carrier, development device, process cartridge, and image forming apparatus (2011-03-15),

10. 7899374 - Magnetic particle carrying device, and developing unit, process cartridge, and image forming apparatus using the same, and surface treatment method of the same (2011-03-01),

11. 7890030 - Magnetic roller, developer carrier, developing device, process cartridge, and image forming apparatus (2011-02-15),

12. 7734221 - Conductive member, process cartridge using conductive member and image formation apparatus using process cartridge (2010-06-08),

13. 7693455 - Conductive member, process cartridge having conductive member, and image forming apparatus having process cartridge (2010-04-06),

14. 7515852 - Conductive member, charging member using the conductive member, process cartridge using the charging member and image forming apparatus using process cartridge (2009-04-07),

15. 7493064 - Electric conductive member, process cartridge and image forming apparatus (2009-02-17),

Title: Tadaaki Hattori: Innovator in Magnetic Technologies

Introduction

Tadaaki Hattori is a prominent inventor based in Hadano, Japan. He has made significant contributions to the field of magnetic technologies, holding a total of 16 patents. His work has been instrumental in advancing various applications in imaging and surface treatment.

Latest Patents

Hattori's latest patents include a magnetic particle carrying device and a developing unit, process cartridge, and image forming apparatus using the same. The magnetic particle carrying device features a magnetic field generator and a hollow cylindrical structure that attracts magnetic particles on its external surface. This innovative design incorporates a plurality of elliptical depressions, enhancing the device's efficiency. Another notable patent is for a magnetic roller, which includes a solid-core roller with magnetic anisotropy, designed to improve the performance of development devices and image forming apparatuses.

Career Highlights

Throughout his career, Tadaaki Hattori has worked with notable companies such as Ricoh Company, Ltd. and NKK Corporation. His experience in these organizations has allowed him to refine his expertise in magnetic technologies and contribute to various innovative projects.

Collaborations

Hattori has collaborated with talented individuals in his field, including Yoshiyuki Takano and Kyohta Koetsuka. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Tadaaki Hattori's contributions to magnetic technologies and his impressive portfolio of patents highlight his role as a leading inventor in the industry. His innovative designs continue to influence advancements in imaging and surface treatment applications.

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