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Ikegami Tsushinki Co., Ltd.

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USPTO Granted Patents = 82

% Expired Patents = 1.2

Trademarks = 1

Forward Citations = 1,434

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97 inventors (with patents filed for the assignee):

Hiroshi Tobita (9 out of 9 patents)

Kazumi Yamamoto (8 out of 8 patents)

Akihiro Suzuki (7 out of 10 patents)

4. Kouzi Nagai (6 out of 6 patents)

5. Masayuki Sugasawa (5 out of 9 patents)

6. Kenji Kosaka (5 out of 5 patents)

7. Naoki Kashimura (5 out of 5 patents)

8. Hiroshi Yamamoto (5 out of 6 patents)

9. Hidetoshi Endo (4 out of 4 patents)

10. Takeshi Sasaoka (4 out of 4 patents)

11. Norihiko Kawada (3 out of 4 patents)

12. Masaaki Koibuchi (3 out of 3 patents)

13. Kenji Hayashi (3 out of 3 patents)

14. Chikado Goto (3 out of 3 patents)

15. Katsumi Degawa (3 out of 3 patents)

Core Competencies:

Image Capturing Apparatus

Solid-State Imaging Device

Color Separation Optical Assembly

Television Camera

Surveillance Camera

Gamma Correction Circuit

Contour Correction

Object Inspection Apparatus

Electronic Endoscope

Stereoscopic Video Signal

Automatic Surface Inspection

Video Signal Synchronizing

82 patents: Sort by Forward Citations

1. 11006026 - Image capturing apparatus (2021-05-11),

2. 10652488 - Optical-detection element, solid-state imaging device, and method for driving solid-state imaging device (2020-05-12),

3. 9923006 - Optical detection element and solid-state image pickup device (2018-03-20),

4. 9696554 - Color separation optical assembly and image capture device (2017-07-04),

5. 8358836 - Specific color detection applicator (2013-01-22),

6. D622300 - Television camera (2010-08-24),

7. D617360 - Operating dial for an image adjusting apparatus (2010-06-08),

8. 6995798 - Viewfinder control unit and television camera (2006-02-07),

9. D508934 - Housing for surveillance camera (2005-08-30),

10. D508710 - Housing for surveillance camera (2005-08-23),

11. D507804 - Housing for surveillance camera (2005-07-26),

12. D504904 - Surveillance camera (2005-05-10),

13. D501863 - Housing for surveillance camera (2005-02-15),

14. D489742 - Dome for cameras (2004-05-12),

15. 6275265 - Video signal synchronizing apparatus (2001-08-14),

Company Overview

Ikegami Tsushinki Co., Ltd., based in Tokyo, specializes in advanced image processing technology. The company is renowned for its development and manufacturing of high-quality image capturing apparatus, including solid-state imaging devices and sophisticated television and surveillance cameras. Ikegami's expertise extends to color separation optical assemblies and gamma correction circuits, contributing to innovations in object inspection apparatus. The organization is committed to enhancing visual technology across various applications, reflecting its dedication to precision and quality in imaging solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

82 Patents

#616 in Tokyo

#1,282 in Japan

#9,261 in the World

Ikegami Tsushinki Co., Ltd.

Forward Citations = 1,434

97 inventors:

Hiroshi Tobita (9 out of 9 patents)

Kazumi Yamamoto (8 out of 8 patents)

Akihiro Suzuki (7 out of 10 patents)

4. Kouzi Nagai (6 out of 6 patents)

5. Masayuki Sugasawa (5 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ikegami Tsushinki Co., Ltd.. Retrieved from https://idiyas.com/company/ikegami-tsushinki-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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