Yasuhide Ohkubo

This inventor holds 31 USPTO granted patents and 2 published patent applications, plus 1 CIPO patent and 1 EPO patent, primarily in Image Formation Technology. Top assignee: Ricoh Company, Ltd.. Active years: 2010-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhide Ohkubo. Retrieved from https://idiyas.com/inventor/yasuhide-ohkubo

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

USPTO Granted Patents = 31 (Patent Applications = 2)

% Patents Active = 45.2

CIPO Patents = 1

EPO Patents = 1 (Patent Applications = 1)

Average Co-Inventor Count = 4.2

ph-index = 5

Forward Citations = 67(Granted Patents)

Location History:

Osaka, JP (2010 - 2016)
Toyonaka, JP (2015 - 2016)
Kanagawa, JP (2020 - 2023)

Company Filing History:

31 out of 28,940

Ricoh Company, Ltd.

patents

Years Active: 2010-2026

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Areas of Expertise:

Toner Container

Developing Device

Image Forming Apparatus

Process Cartridge

Sheet Feeding Device

Media Guide Mechanism

Feeding Device

Seal

Switchback Mechanism

Sheet Conveying Device

Manual Sheet-Feeding Device

Open/Close Mechanism

31 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12591188 - Developing device including seal and image forming apparatus (2026-03-31),

2. 11579545 - Toner container having shutter and image forming apparatus (2023-02-14),

3. 11054762 - Powder container, process cartridge, and image forming apparatus (2021-07-06),

4. 10816916 - Toner conveyance device with a film attached to a wall surrounding a conveyance screw (2020-10-27),

5. 9500992 - Developing device having a powder conveyor, process cartridge, and image forming apparatus including the same (2016-11-22),

6. 9261816 - Developer amount detector, developing device, process unit, and image forming apparatus (2016-02-16),

7. 9229372 - Developing device, process cartridge, and image forming apparatus (2016-01-05),

8. 9201393 - Toner container, process cartridge, and image forming apparatus (2015-12-01),

9. 8953975 - Seal and image forming device including a seal (2015-02-10),

10. 8874021 - Media guide mechanism, fixing device and image forming apparatus incorporating same (2014-10-28),

11. 8807552 - Image forming apparatus, optional sheet feeder, and base plate member (2014-08-19),

12. 8678371 - Manual sheet-feeding device and image forming apparatus (2014-03-25),

13. 8561979 - Open/close mechanism for paper tray for use in image forming apparatus (2013-10-22),

14. 8356813 - Paper feeder assembly for image forming apparatus, and image forming apparatus incorporating the same (2013-01-22),

15. 8320798 - Sheet conveying device and image forming apparatus (2012-11-27),

Title: Inventor Yasuhide Ohkubo: Pioneering Innovations from Osaka

Introduction: Yasuhide Ohkubo is a renowned inventor hailing from Osaka, Japan, known for his groundbreaking contributions to the field of technology and innovation.

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

Career Highlights: With a career spanning over two decades, Yasuhide Ohkubo has worked with leading tech companies in Japan, spearheading research and development projects that have led to significant breakthroughs in various industries.

Collaborations: Throughout his career, Ohkubo has collaborated with top researchers, engineers, and scientists both locally and internationally, fostering a culture of innovation and knowledge sharing.

Conclusion: Yasuhide Ohkubo's relentless pursuit of innovation and his passion for creating solutions to complex technological challenges have solidified his reputation as a visionary inventor in the global tech community.

Profile summary based on public USPTO records.