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Yoshida Kogyo K.k.

USPTO Granted Patents = 1,145

Trademarks = 7

Forward Citations = 11,505

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509 inventors (with patents filed for the assignee):

Hiroshi Yoshida (54 out of 64 patents)

Shunji Akashi (52 out of 82 patents)

Kazumi Kasai (34 out of 54 patents)

4. Kihei Takahashi (34 out of 38 patents)

5. Yoshiyuki Horita (31 out of 31 patents)

6. Yoshio Matsuda (29 out of 57 patents)

7. Susumu Ishii (28 out of 28 patents)

8. Kiyoshi Oda (27 out of 40 patents)

9. Ryuichi Murasaki (23 out of 78 patents)

10. Yasuharu Terada (21 out of 21 patents)

11. Ryukichi Murai (21 out of 28 patents)

12. Tsuyoshi Masumoto (21 out of 49 patents)

13. Yoshihiro Kanzaka (20 out of 26 patents)

14. Karl Gartner (20 out of 24 patents)

15. Keiichi Yoshieda (19 out of 20 patents)

Core Competencies:

Slide Fastener

Buckle

Automatic Slider

Reinforced Tape

High-Toughness Composite

Curtain Attachment

Fastening Device

Transparent Conductive Film

Aluminum Alloy

Cord Locking Device

Zipper Tapes

Sintered Material

1,145 patents: Sort by Forward Citations

1. 6052875 - Buckle assembly (2000-04-25),

2. 6027586 - Forming process of amorphous alloy material (2000-02-22),

3. 5746880 - Tape cassette and automatic attaching apparatus for heat-fusible tape (1998-05-05),

4. 5648174 - Highly hard thin film and method for production thereof (1997-07-15),

5. 5599756 - Sintered high-toughness alumina-based composite body (1997-02-04),

6. 5561206 - Electrochromic copolymers including vinyl alcohol or vinyl acetate units (1996-10-01),

7. 5545443 - Method for producing a transparent conductive ZnO film by incorporating (1996-08-13),

8. 5544387 - Curtain attachment connector assembly and curtain attachment connector (1996-08-13),

9. 5533240 - Lock fastener (1996-07-09),

10. 5520983 - Outerlining fabric for curtain and curtain attachment structure using (1996-05-28),

11. 5518522 - Deformed ultra fine grains and process for producing same in bulk (1996-05-21),

12. 5509181 - Fitting for ball chains (1996-04-23),

13. 5500276 - Slide fastener made of synthetic resin (1996-03-19),

14. 5499432 - Fastening device (1996-03-19),

15. 5495655 - Method and apparatus for forming slide-fastener coupling element (1996-03-05),

Company Overview

Yoshida Kogyo K.K., based in Tokyo, specializes in the development and manufacturing of slide fasteners and related fastening devices. The company is recognized for its innovative technologies, including automatic sliders, reinforced tapes, and high-toughness composites. With a focus on enhancing functionality and durability, Yoshida Kogyo also explores applications in transparent conductive films and curtain attachments, positioning itself as a leader in the fastening industry and contributing to various sectors requiring reliable fastening solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

1,145 Patents

#105 in Tokyo

#203 in Japan

#902 in the World

Yoshida Kogyo K.k.

Forward Citations = 11,505

509 inventors:

Hiroshi Yoshida (54 out of 64 patents)

Shunji Akashi (52 out of 82 patents)

Kazumi Kasai (34 out of 54 patents)

4. Kihei Takahashi (34 out of 38 patents)

5. Yoshiyuki Horita (31 out of 31 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yoshida Kogyo K.k.. Retrieved from https://idiyas.com/company/yoshida-kogyo-k-k

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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