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For the Inventor, By the Inventor

Osaka, Japan

Maruzen Sewing Machine Co., Ltd.

Calculating rank
USPTO Granted Patents = 48

Trademarks = 2

Forward Citations = 294

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19 inventors (with patents filed for the assignee):

goldMedal Yoshihide Yoneda (14 out of 14 patents)

silverMedal Yoshio Mikuni (7 out of 7 patents)

bronzeMedal Kimikazu Matsuda (6 out of 6 patents)

4.  Ichirou Shibayama (6 out of 6 patents)

5.  Tadao Kohara (5 out of 5 patents)

6.  Osamu Koshinaka (5 out of 5 patents)

7.  Tetsuya Aono (4 out of 4 patents)

8.  Nobuyoshi Matsumura (3 out of 3 patents)

9.  Yoshikazu Suzuki (2 out of 9 patents)

10.  Teiichi Nishigami (2 out of 2 patents)

11.  Nobuyoshi Matumura (2 out of 2 patents)

12.  Osamu Tanaka (2 out of 2 patents)

13.  Toshiyuki Hayashi (1 out of 1 patent)

14.  Susumu Dainin (1 out of 1 patent)

15.  Yoshihiro Yamaguchi (1 out of 1 patent)


Core Competencies:
Sewing Machine
Thread Take-Up Lever
Thread Tension Device
Overedge Sewing Machine
Looper Changeover Device
Embroidery Machine
Full Rotary Loop Taker
Automatic Buttonhole Apparatus
Feed Mechanism
Speed Control Apparatus
Ornamental Stitch Machine

48 patents:

1. D313806 - Sewing machine (1991-01-15),
2. D313805 - Sewing machine (1991-01-15),
3. D313604 - Sewing machine (1991-01-08),
4. D303117 - Sewing machine (1989-08-29),
5. D300543 - Sewing machine (1989-04-04),
6. 4817545 - Thread take-up lever device for sewing machines (1989-04-04),
7. 4803936 - Thread tension device for overedge sewing machines (1989-02-14),
8. 4799440 - Looper changeover device (1989-01-24),
9. 4799439 - Double purpose looper for overlocking sewing machine (1989-01-24),
10. D298755 - Sewing machine (1988-11-29),
11. 4781132 - Full rotary loop taker assembly for sewing machines (1988-11-01),
12. D297434 - Sewing machine (1988-08-30),
13. D296558 - Sewing machine (1988-07-05),
14. D292930 - Sewing machine (1987-11-24),
15. D292929 - Sewing machine (1987-11-24),
Company Overview
Maruzen Sewing Machine Co., Ltd. is a prominent manufacturer based in Osaka, Japan, specializing in advanced sewing technology. The company focuses on the development and production of a wide range of sewing machines, including overedge sewing machines, embroidery machines, and automatic buttonhole apparatus. Maruzen is recognized for its innovative thread tension devices and looper changeover devices, which enhance sewing efficiency and precision. With a commitment to quality and technological advancement, Maruzen continues to serve the global textile industry.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Nov 3 2026

48 Patents

#188 in Osaka

#1,758 in Japan

#14,570 in the World

Osaka, JP
Osaka, Japan

Maruzen Sewing Machine Co., Ltd.

Forward Citations = 294

19 inventors:

goldMedal Yoshihide Yoneda (14 out of 14 patents)

silverMedal Yoshio Mikuni (7 out of 7 patents)

bronzeMedal Kimikazu Matsuda (6 out of 6 patents)

4.  Ichirou Shibayama (6 out of 6 patents)

5.  Tadao Kohara (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Maruzen Sewing Machine Co., Ltd.. Retrieved from https://idiyas.com/company/maruzen-sewing-machine-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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