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Howa Machinery, Ltd.

USPTO Granted Patents = 93

EPO Patents = 4

Trademarks = 3

Forward Citations = 484

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85 inventors (with patents filed for the assignee):

Mitsuo Noda (22 out of 22 patents)

Tsuyoshi Yonezawa (11 out of 11 patents)

Yoshio Kurachi (9 out of 9 patents)

4. Tetsuya Oketani (8 out of 8 patents)

5. Takashi Kogiso (7 out of 9 patents)

6. Kenji Sasaki (7 out of 8 patents)

7. Akiyoshi Horikawa (6 out of 11 patents)

8. Hiroshi Yoshida (5 out of 152 patents)

9. Naoki Minowa (5 out of 5 patents)

10. Yutaka Tanaka (5 out of 7 patents)

11. Yoshiaki Mase (5 out of 5 patents)

12. Shigeki Sekiya (5 out of 5 patents)

13. Hiroshi Enomoto (5 out of 5 patents)

14. Hiroshi Nagaosa (4 out of 4 patents)

15. Hirotaka Nishikawa (4 out of 5 patents)

Core Competencies:

Chuck-Claw Guide Structure

Rod-Less Cylinder

Magnet-Type Rodless Cylinder

Tool Changing Mechanism

Linear Actuator

Spinning Ring Structure

Clamping Cylinder Actuator

Safety Mechanism for Firearm

Process Simulation System

Sheet-Cutting Apparatus

Double-Sided Exposure System

Vertical Alignment Table Mechanism

93 patents: Sort by Forward Citations

1. 11992885 - Chuck-claw guide structure and chuck-claw insertion method (2024-05-28),

2. 11794301 - Chuck grip accuracy checking method, chuck claw exchanging method, and chuck grip accuracy checking device (2023-10-24),

3. 11478861 - Chuck-claw coupling mechanism (2022-10-25),

4. 10280950 - Rod-less cylinder equipped with guide mechanism (2019-05-07),

5. 10082160 - Magnet-type rodless cylinder (2018-09-25),

6. 9513077 - Magazine lock and portable firearm (2016-12-06),

7. 8746129 - Rodless cylinder (2014-06-10),

8. 7669515 - Magnet type rodless cylinder (2010-03-02),

9. 7657410 - Process simulation system (2010-02-02),

10. 7644648 - Magnet type rodless cylinder (2010-01-12),

11. 7568423 - Magnet type rodless cylinder (2009-08-04),

12. 7493848 - Magnet type rodless cylinder (2009-02-24),

13. 7334721 - Sheet-cutting apparatus (2008-02-26),

14. 7194949 - Magnet type rodless cylinder (2007-03-27),

15. 7184854 - Device and method for generating piston outline machining data and computer-readable recording medium on which machining data generation program is recorded (2007-02-27),

HOWA MACHINERY, LTD. is a global manufacturer of high-quality industrial machinery and equipment. With over 70 years of experience, we specialize in designing, producing, and distributing advanced machinery solutions for various industries including automotive, aerospace, electronics, and more. Our innovative products include CNC machines, machining centers, lathes, grinders, and cutting tools. Committed to delivering superior performance, reliability, and customer satisfaction, we strive to meet the evolving needs of modern manufacturing. Visit our website to learn more about our extensive product range and how we can help optimize your production processes.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

93 Patents

#18 in Aichi

#1,146 in Japan

#8,039 in the World

Howa Machinery, Ltd.

Forward Citations = 484

85 inventors:

Mitsuo Noda (22 out of 22 patents)

Tsuyoshi Yonezawa (11 out of 11 patents)

Yoshio Kurachi (9 out of 9 patents)

4. Tetsuya Oketani (8 out of 8 patents)

5. Takashi Kogiso (7 out of 9 patents)

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