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For the Inventor, By the Inventor

Tokyo, Japan

Smc Kabushiki Kaisha

Calculating rank
USPTO Granted Patents = 565

% Expired Patents = 9.2



Trademarks = 2

Forward Citations = 7,056

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336 inventors (with patents filed for the assignee):

goldMedal Shigekazu Nagai (120 out of 136 patents)

silverMedal Yoshihiro Fukano (91 out of 132 patents)

bronzeMedal Akio Saitoh (40 out of 46 patents)

4.  Tadashi Uchino (22 out of 25 patents)

5.  Koji Sugano (20 out of 37 patents)

6.  Toshio Sato (18 out of 44 patents)

7.  Shuuzou Sakurai (18 out of 20 patents)

8.  Toru Sugiyama (15 out of 33 patents)

9.  Masaki Miyahara (15 out of 29 patents)

10.  Kazuyoshi Takahashi (14 out of 30 patents)

11.  Kazuhiro Iida (14 out of 16 patents)

12.  Tetsuro Maruyama (14 out of 14 patents)

13.  Masayuki Hosono (13 out of 18 patents)

14.  Tadasu Kawamoto (12 out of 14 patents)

15.  Junya Kaneko (11 out of 17 patents)


Core Competencies:
Electric Clamp
Fluid Pressure Cylinder
Piston Assembly
Flow Rate Control
Solenoid Valve
Pressure Detector
Check Valve
Linear Actuator
Vacuum Apparatus
Bonding Method
Ionizer
Clamp Device

565 patents:

1. 10220491 - Electric clamp apparatus (2019-03-05),
2. 10195720 - Electric clamp apparatus (2019-02-05),
3. 10151416 - Pipe joint (2018-12-11),
4. 10041514 - Fluid pressure cylinder (2018-08-07),
5. 9908219 - Clamp apparatus (2018-03-06),
6. 9885439 - Pipe joint (2018-02-06),
7. 9829135 - Pipe joint (2017-11-28),
8. 9827642 - Clamping device (2017-11-28),
9. 9784389 - Pipe joint (2017-10-10),
10. 9765800 - Piston assembly, fluid pressure cylinder, method for manufacturing piston assembly (2017-09-19),
11. 9752685 - Flow rate control apparatus (2017-09-05),
12. 9746006 - Fluid pressure cylinder (2017-08-29),
13. 9689520 - Pipe joint (2017-06-27),
14. 9598762 - Diamond-like carbon film-formed material and method for producing the same (2017-03-21),
15. 9587774 - Connector for fluid pressure devices (2017-03-07),
Company Overview
Smc Kabushiki Kaisha, headquartered in Tokyo, Japan, is a leading manufacturer specializing in fluid pressure devices. The company focuses on developing advanced technologies such as electric clamps, fluid pressure cylinders, and piston assemblies. Their expertise extends to flow rate control systems, solenoid valves, pressure detectors, check valves, and linear actuators. With a commitment to innovation, SMC plays a crucial role in various industries by providing efficient and reliable solutions for automation and control applications.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

Smc Kabushiki Kaisha USPTO Patent Assignee Logo
565 Patents

#171 in Tokyo

#354 in Japan

#1,719 in the World

Tokyo, JP
Tokyo, Japan

Smc Kabushiki Kaisha

Forward Citations = 7,056

336 inventors:

goldMedal Shigekazu Nagai (120 out of 136 patents)

silverMedal Yoshihiro Fukano (91 out of 132 patents)

bronzeMedal Akio Saitoh (40 out of 46 patents)

4.  Tadashi Uchino (22 out of 25 patents)

5.  Koji Sugano (20 out of 37 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Smc Kabushiki Kaisha. Retrieved from https://idiyas.com/company/smc-kabushiki-kaisha

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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