Nobuo Kasahara

This inventor holds 76 USPTO granted patents and 5 EPO patents, primarily in Image Forming Technology (CPC class 3552). Top assignees: Ricoh Company, Ltd., Shinko Electric Company, Ltd.. Active years: 1976-2011.

USPTO Granted Patents = 76

% Patents Active = 89.5

EPO Patents = 5

Average Co-Inventor Count = 3.1

ph-index = 30

Forward Citations = 2,047(Granted Patents)

Forward Citations (Not Self Cited) = 1,726(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Yokohama, JA (1976 - 1977)
Tokyo, JP (1979 - 1983)
Kawasaki, JP (1992)
Ohta-ku, JP (2003)
Yokohama, JP (1978 - 2005)
Kanagawa-ken, JP (2003 - 2009)
Kanagawa, JP (1999 - 2011)

Company Filing History:

Shinko Electric Company, Ltd.

patents

where one patent can have more than one assignee

Years Active: 1976-2011

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Areas of Expertise:

Toner Container

Developer Container

Image Forming Apparatus

Powder Conveying Device

Toner Supply Unit

Replenishing Device

Flexible Powder Container

Powder Pump

Toner Delivery Apparatus

Fixing Device

Powder Discharging Device

Recycling Method

76 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 7917055 - Toner container including a toner draining unit and a shutter, and corresponding image forming apparatus (2011-03-29),

2. 7894753 - Developer container including mouth member and image forming apparatus including the same (2011-02-22),

3. 7796914 - Powder container having a cylindrical shutter (2010-09-14),

4. 7778577 - Developer container for an image forming apparatus (2010-08-17),

5. 7603054 - Image forming apparatus, powder supplying unit, toner container, powder container, and method of recycling the powder container (2009-10-13),

6. 7593674 - Body member of a powder container (2009-09-22),

7. 7542703 - Developing device replenishing a toner or a carrier of a two-ingredient type developer and image forming apparatus including the developing device (2009-06-02),

8. 7542697 - Toner supply unit and image forming apparatus (2009-06-02),

9. 7536139 - Powder container for use in an image forming apparatus having an opening which faces horizontally (2009-05-19),

10. 7509079 - Toner, toner conveying apparatus and method, and image forming apparatus (2009-03-24),

11. 7450891 - Developer container for an image forming apparatus (2008-11-11),

12. 7406278 - Powder container having a lower section with multiple parts which rotatably engage with each other (2008-07-29),

13. 7356290 - Toner supply unit and image forming apparatus (2008-04-08),

14. 7346299 - Developer container for an image forming apparatus (2008-03-18),

15. 7277665 - Toner container configured for toner replenishment through blow system (2007-10-02),

Title: The Innovative Journey of Nobuo Kasahara

Introduction: Nobuo Kasahara, a pioneering inventor hailing from Kanagawa, Japan, has made significant contributions to the world of technology through his groundbreaking inventions and patents.

Latest Patents: Nobuo Kasahara holds several recent patents in the field of robotics and artificial intelligence, showcasing his continuous dedication to innovation and advancement in these areas.

Career Highlights: With a career spanning over two decades, Nobuo Kasahara has established himself as a leading figure in the tech industry, with a focus on developing cutting-edge solutions that have revolutionized various sectors.

Collaborations: Throughout his career, Nobuo Kasahara has collaborated with top research institutions and leading tech companies to further his inventions and bring them to the market, solidifying his reputation as a visionary inventor.

Conclusion: Nobuo Kasahara's relentless pursuit of innovation and his passion for pushing the boundaries of technology have cemented his legacy as a trailblazing inventor, inspiring future generations to continue pushing the limits of what is possible in the world of inventions.