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Ricoh Imaging Company, Ltd.

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USPTO Granted Patents = 94

% Expired Patents = 24.5

EPO Patents = 15

Trademarks = 12

Forward Citations = 93

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67 inventors (with patents filed for the assignee):

Tatsuyuki Onozaki (7 out of 8 patents)

Masakazu Terauchi (6 out of 13 patents)

Masakazu Saori (6 out of 38 patents)

4. Eiichi Ito (5 out of 10 patents)

5. Masahiro Inazuka (5 out of 8 patents)

6. Kosei Kosako (5 out of 48 patents)

7. Masashi Miyata (4 out of 20 patents)

8. Yasuhiro Yamamoto (4 out of 122 patents)

9. Kazuhiro Akiyama (4 out of 12 patents)

10. Yuji Kogure (4 out of 10 patents)

11. Toshiaki Yamada (4 out of 40 patents)

12. Hiroyuki Nakayama (3 out of 31 patents)

13. Minoru Murayama (3 out of 12 patents)

14. Takahiro Kobayashi (3 out of 59 patents)

15. Naohito Sasaki (3 out of 7 patents)

Core Competencies:

Zoom Lens System

Shake-Correction Device

Optical Coatings

Imaging Apparatus

Photographing Apparatus

Optical Member

Lens Barrel

Finder Optical System

Image Processing

Dynamic Image Focus Detection

Camera Shake Correction

Digital Camera

94 patents: Sort by Forward Citations

1. 10908385 - Mechanism for attaching and detaching tripod seat (2021-02-02),

2. 10782452 - Anti-reflection coating and optical member comprising same (2020-09-22),

3. 10634975 - Finder optical system (2020-04-28),

4. 10495841 - Lens barrel and imaging device (2019-12-03),

5. 10483785 - Power information management device and power information management system (2019-11-19),

6. 10473882 - Lead screw device, lens driver, lens barrel, and camera using the lead screw device (2019-11-12),

7. 10432862 - Imaging apparatus, image projector apparatus, and stage apparatus (2019-10-01),

8. 10419694 - Method and apparatus for imaging an object (2019-09-17),

9. 10397502 - Method and apparatus for imaging an object (2019-08-27),

10. 10341577 - Imaging apparatus (2019-07-02),

11. 10341567 - Photographing apparatus (2019-07-02),

12. 10338360 - Zoom lens system (2019-07-02),

13. 10310241 - Zoom lens system (2019-06-04),

14. 10295808 - Zoom lens system having third lens group with air lens formed of adjacent negative and positive single lens elements (2019-05-21),

15. 10281692 - Zoom lens system and electronic imaging apparatus using the same (2019-05-07),

Company Overview

Ricoh Imaging Company, Ltd., based in Tokyo, specializes in advanced imaging technology, focusing on the development and manufacturing of high-quality photographic equipment and optical devices. The company is renowned for its innovations in zoom lens systems, shake-correction devices, and optical coatings, catering to both professional and consumer markets. Ricoh Imaging's expertise extends to various imaging apparatuses and components, including lens barrels and finder optical systems, reinforcing its commitment to enhancing photographic experiences.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

94 Patents

#566 in Tokyo

#1,168 in Japan

#8,211 in the World

Ricoh Imaging Company, Ltd.

Forward Citations = 93

67 inventors:

Tatsuyuki Onozaki (7 out of 8 patents)

Masakazu Terauchi (6 out of 13 patents)

Masakazu Saori (6 out of 38 patents)

4. Eiichi Ito (5 out of 10 patents)

5. Masahiro Inazuka (5 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ricoh Imaging Company, Ltd.. Retrieved from https://idiyas.com/company/ricoh-imaging-company

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

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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