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Ckd Corporation

USPTO Granted Patents = 317

EPO Patents = 33

Trademarks = 11

Forward Citations = 2,185

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348 inventors (with patents filed for the assignee):

Masayuki Kouketsu (33 out of 36 patents)

Hiroshi Itafuji (27 out of 30 patents)

Tsuyoshi Ohyama (25 out of 25 patents)

4. Norihiko Sakaida (24 out of 24 patents)

5. Hideyuki Takeda (19 out of 19 patents)

6. Akihiro Ito (18 out of 31 patents)

7. Takahiro Mamiya (17 out of 17 patents)

8. Hiroyuki Ishigaki (16 out of 16 patents)

9. Yukihiro Taguchi (15 out of 15 patents)

10. Yasunori Nishimura (13 out of 13 patents)

11. Shinji Itoh (12 out of 12 patents)

12. Mitsuhiro Kosugi (12 out of 12 patents)

13. Hiroyuki Murase (12 out of 12 patents)

14. Atsushi Fukuta (11 out of 11 patents)

15. Hiroki Iwata (10 out of 11 patents)

Core Competencies:

Fluid Control Valve

Pressure Control Valve

Solenoid Valve Manifold

Three-Dimensional Measurement Device

Powder Feeding Device

Inspection Device

Electromagnetic Valve

Temperature Control System

Blister Packaging Machine

Micromixer

Fluid Device Coupler

Butterfly Valve

317 patents: Sort by Forward Citations

1. 12486909 - Fluid control valve and method for manufacturing the same (2025-12-02),

2. 12474001 - Fluid device coupler and fluid device coupling structure (2025-11-18),

3. 12449065 - Pressure control valve (2025-10-21),

4. 12446162 - Screen mask inspection device, solder printing inspection device, and method for inspecting screen mask (2025-10-14),

5. 12432895 - Solder printing inspection device (2025-09-30),

6. 12404946 - Solenoid valve manifold (2025-09-02),

7. 12359906 - Three-dimensional measurement device (2025-07-15),

8. 12315133 - Substrate foreign matter inspection device and substrate foreign matter inspection method (2025-05-27),

9. 12305295 - Powder feeding device, thermal spraying apparatus, powder feeding method, and thermal spraying method (2025-05-20),

10. 12291368 - Inspection device, packaging sheet manufacturing device, and packaging sheet manufacturing method (2025-05-06),

11. 12280346 - Micromixer (2025-04-21),

12. 12279035 - Inspection device, blister packaging machine, and method for manufacturing blister pack (2025-04-14),

13. 12264693 - System for detecting operation of a fluid pressure actuator (2025-04-01),

14. D1068033 - Spacer for shut-off valve (2025-03-25),

15. 12259230 - Three-dimensional measurement device (2025-03-25),

CKD Corporation is a leading Japanese manufacturer of various industrial equipment and systems. With a rich history spanning over 70 years, CKD has specialized in developing automation technologies and providing engineering solutions to a wide range of industries. The company offers products in pneumatic components, fluid control systems, process valves, and much more. CKD's commitment to innovation, quality, and customer satisfaction has made them a trusted partner for businesses worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

317 Patents

#6 in Aichi

#505 in Japan

#2,753 in the World

Ckd Corporation

Forward Citations = 2,185

348 inventors:

Masayuki Kouketsu (33 out of 36 patents)

Hiroshi Itafuji (27 out of 30 patents)

Tsuyoshi Ohyama (25 out of 25 patents)

4. Norihiko Sakaida (24 out of 24 patents)

5. Hideyuki Takeda (19 out of 19 patents)

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