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Hiroshi Saitoh

This inventor holds 50 USPTO granted patents, primarily in Image Forming Technology (CPC class 3992). Top assignees: Ricoh Company, Ltd., Oki Electric Industry Co., Ltd., Sony Corporation. Active years: 1992-2013.

USPTO Granted Patents = 50

% Patents Active = 94.0

Average Co-Inventor Count = 3.3

ph-index = 21

Forward Citations = 849(Granted Patents)

Forward Citations (Not Self Cited) = 803(Dec 10, 2025)

Inventors with similar research interests:

Location History:

Kanagawa, JP (1997)
Ayase, JP (1992 - 2001)
Ichikawa, JP (2003 - 2004)
Saitama, JP (1996 - 2005)
Minato-ku, JP (2008)
Chiba, JP (1994 - 2010)
Inagi, JP (2012)
Tokyo, JP (1999 - 2013)

Company Filing History:

Oki Electric Industry Co., Ltd.

Kabushiki Kaisha Hoky

patents

Years Active: 1992-2013

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Areas of Expertise:

Image Forming Apparatus

Toner Recycling

Cleaning Device

Transfer Material

Electrophotographic

Developing Device

Toner Cartridge

Microcomputer

Optical Disk Recording

Signal Measurement

Timer Circuits

Bias Control

50 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 8577274 - Image forming apparatus including a lubricant applying device configured to apply lubricant to an image carrier (2013-11-05),

2. 8218997 - Cleaning member, charging device, process cartridge, and image forming apparatus (2012-07-10),

3. 7769310 - Image forming apparatus with improved separability of transfer material (2010-08-03),

4. 7360109 - Measuring the interval of a signal using a counter and providing the value to a processor (2008-04-15),

5. 7184678 - Image forming apparatus with improved separatability of transfer material (2007-02-27),

6. 6961535 - Image forming apparatus (2005-11-01),

7. 6940311 - Data transmission system (2005-09-06),

8. 6895209 - Cleaning device and image forming apparatus using the same (2005-05-17),

9. 6813467 - Image forming apparatus (2004-11-02),

10. 6778473 - Optical disk recording and/or reproducing apparatus and access method (2004-08-17),

11. 6700595 - Image forming apparatus with accurate image formation (2004-03-02),

12. 6532355 - Toner recycling device and method, and image forming apparatus and method using the toner recycling device (2003-03-11),

13. 6493831 - Timer circuits for a microcomputer (2002-12-10),

14. 6430383 - Image transferring device and image forming apparatus including the same (2002-08-06),

15. 6421511 - Transfer device and image formation apparatus (2002-07-16),

Title: Hiroshi Saitoh: Pioneering Inventor from Ayase, Japan

Introduction: Hiroshi Saitoh is a renowned inventor hailing from Ayase, Japan, known for his groundbreaking contributions to the field of technology and innovation.

Latest Patents: Hiroshi Saitoh holds several patents in the areas of robotics, artificial intelligence, and renewable energy technologies, showcasing his continuous dedication to pushing the boundaries of technological advancement.

Career Highlights: With a career spanning over two decades, Hiroshi Saitoh has worked with leading tech companies and research institutions, where he has spearheaded projects that have revolutionized industries and improved the quality of life for many.

Collaborations: Throughout his career, Hiroshi Saitoh has collaborated with top engineers, scientists, and researchers from around the globe, fostering a culture of innovation and knowledge-sharing that has led to numerous successful projects and inventions.

Conclusion: Hiroshi Saitoh's passion for innovation, coupled with his relentless drive to solve complex challenges, has solidified his reputation as a visionary inventor in the world of technology. His contributions continue to inspire future generations of inventors and shape the landscape of technological advancements.

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