Company Filing History:

19 out of 28,544

Ricoh Company, Ltd.

Years Active: 1983-2015

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21 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8958729 - Magnet roller, developer bearer, development device, process cartridge, and image forming apparatus (2015-02-17),

2. 8824932 - Development device, and process cartridge and image forming apparatus incorporating same (2014-09-02),

3. 8731444 - Develop roller, develop unit, process cartridge, and image forming apparatus (2014-05-20),

4. 8682230 - Development device, process cartridge, and image forming apparatus including same having multiple recesses formed on a developer bearer (2014-03-25),

5. 8600271 - Magnet roller, developer holder element, develop unit, process cartridge, and image forming apparatus (2013-12-03),

6. 8565652 - Development roller, development device, process cartridge and image-forming apparatus (2013-10-22),

7. 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),

8. 8500615 - Magnetic roller and manufacturing method thereof, developer carrier, development device, processing cartridge, and image forming apparatus (2013-08-06),

9. 8331834 - Developing unit, image forming apparatus incorporating same, and process cartridge including same (2012-12-11),

10. 8135316 - Development roller, development device, process cartridge and image forming device (2012-03-13),

11. 8135315 - Developer regulating member in a developing unit, process cartridge including same, and image forming apparatus incorporating same (2012-03-13),

12. 8023867 - Magnet roller and method for the same, magnetic particle-support member, development device, process cartridge, and image forming apparatus (2011-09-20),

13. 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),

14. 7907876 - Developer carrier, development device, process cartridge, and image forming apparatus (2011-03-15),

15. 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),

Title: Innovations of Masayuki Ohsawa: A Pioneer in Imaging Technology

Introduction: Masayuki Ohsawa, a distinguished inventor based in Atsugi, Japan, has made significant contributions to the field of imaging technology. With an impressive portfolio of 21 patents, Ohsawa has focused on developing advanced devices that enhance image formation processes. His innovative designs have impacted various industries, particularly in the realm of printers and copiers.

Latest Patents: Among Masayuki Ohsawa's latest patents are several noteworthy inventions. One such patent is for a magnet roller, which features a roller-shaped body made from a magnetic field generating material. This invention includes support rods that enhance the roller's function and design. Another patent details a development device that integrates a developer carrier and a magnetic field generator, which efficiently conveys developer material for optimal image processing. Additionally, Ohsawa has patented a process cartridge and an image forming apparatus that further streamline the development process, demonstrating his commitment to innovation in imaging technology.

Career Highlights: Throughout his career, Masayuki Ohsawa has been associated with prominent companies such as Ricoh Company, Ltd. and Sony Corporation. His role in these organizations has allowed him to apply his inventive skills in cutting-edge technology development, positioning him as a leader in his field.

Collaborations: Masayuki Ohsawa has collaborated with several talented individuals during his career, including Kyohta Koetsuka and Noriyuki Kamiya. These partnerships have fostered creativity and lead to the successful realization of innovative imaging technologies.

Conclusion: Masayuki Ohsawa's contributions to the imaging technology sector through his numerous patents underscore his innovative spirit and dedication to advancement. His work continues to influence the industry, paving the way for future developments in image formation and related technologies.

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1 patent (EPO):

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Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.