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Csk Corporation

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USPTO Granted Patents = 19

% Expired Patents = 10.5

EPO Patents = 2

Forward Citations = 232

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25 inventors (with patents filed for the assignee):

Hidefumi Suzuki (6 out of 7 patents)

Shunzo Takahashi (4 out of 5 patents)

Kiyotaka Ogawa (3 out of 3 patents)

4. Akiyoshi Hashimoto (2 out of 2 patents)

5. Yukio Hamasaki (2 out of 3 patents)

6. Shigeru Izawa (2 out of 2 patents)

7. Takashi Hasemi (2 out of 2 patents)

8. Jinhong Kim (2 out of 2 patents)

9. Myeonghoon Kang (2 out of 2 patents)

10. Jin Hong Kim (1 out of 37 patents)

11. Il Jun Jeon (1 out of 2 patents)

12. Hyung Geuk Kim (1 out of 1 patent)

13. Fumio Kimura (1 out of 20 patents)

14. Takayuki Kawamura (1 out of 2 patents)

15. Kiyoshi Horie (1 out of 3 patents)

19 patents: Sort by Forward Citations

1. 12643064 - Apparatus for collecting powder in exhaust gas with an increased collection capacity and exhaust gas treatment equipment provided with same (2026-06-02),

2. 12546470 - Scrubber burner (2026-02-10),

3. 12478910 - Apparatus for collecting powder in exhaust gas having a filter dedusting function and exhaust gas treatment equipment provided with same (2025-11-25),

4. 12290778 - Scrubber, ALD process system including the scrubber and method for fabricating semiconductor device using the scrubber (2025-05-06),

5. 9068742 - Burner for scrubber (2015-06-30),

6. 6852068 - Training machine, image output processing device and method, and recording medium which stores image outputting programs (2005-02-08),

7. 6805656 - Training machine, image output processing device and method, and recording medium which stores image outputting programs (2004-10-19),

8. 6634992 - Training machine, image output processing device and method, and recording medium which stores image outputting programs (2003-10-21),

9. 5027337 - Optical recording medium and tracking method therefor (1991-06-25),

10. 4994658 - Apparatus for controlling movement of an optical memory card for data (1991-02-19),

11. 4982077 - Recording format for optical recording medium (1991-01-01),

12. 4933537 - Apparatus for controlling movement of an optical memory card for data (1990-06-12),

13. 4885736 - Optical recording medium with track and track number guides (1989-12-05),

14. 4881214 - Data record formatting system and reading/writing system for optical (1989-11-14),

15. 4879691 - Optical recording system with optical recording medium having multilevel (1989-11-07),

Company Overview

Csk Corporation, headquartered in Tokyo, specializes in providing advanced technology solutions across various sectors, including information technology and systems integration. The company focuses on developing software and hardware solutions that enhance operational efficiency and drive innovation. With a strong emphasis on research and development, Csk Corporation is committed to delivering cutting-edge technologies that cater to the evolving needs of businesses in Japan and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

19 Patents

#1,381 in Tokyo

#3,041 in Japan

#32,705 in the World

Csk Corporation

Forward Citations = 232

25 inventors:

Hidefumi Suzuki (6 out of 7 patents)

Shunzo Takahashi (4 out of 5 patents)

Kiyotaka Ogawa (3 out of 3 patents)

4. Akiyoshi Hashimoto (2 out of 2 patents)

5. Yukio Hamasaki (2 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Csk Corporation. Retrieved from https://idiyas.com/company/csk

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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