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For the Inventor, By the Inventor

Kasama, Japan

Junkosha Inc.


USPTO Granted Patents = 49

% Expired Patents = 12.2


Trademarks = 4

Forward Citations = 55

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51 inventors (with patents filed for the assignee):

goldMedal Hiroshi Takeuchi (7 out of 8 patents)

silverMedal Daiki Hiraoka (6 out of 6 patents)

bronzeMedal Yasuhiro Misu (6 out of 6 patents)

4.  Masahiro Suzuki (6 out of 28 patents)

5.  Nozomi Ohshika (4 out of 4 patents)

6.  Syunsuke Munakata (4 out of 4 patents)

7.  Kohei Yuri (4 out of 4 patents)

8.  Tetsuya Hirose (3 out of 11 patents)

9.  Suguru Tanabe (3 out of 3 patents)

10.  Tomohiro Adachi (3 out of 3 patents)

11.  Masato Yotsuya (3 out of 3 patents)

12.  Osamu Matsumoto (2 out of 63 patents)

13.  Keiji Yoda (2 out of 2 patents)

14.  Hiroji Oda (2 out of 2 patents)

15.  Yuta Tsukahara (2 out of 2 patents)


Core Competencies:
Fluororesin Film
Polytetrafluoroethylene Tube
Heat-Shrinkable Tube
Cable Harness
Transmission Line
Connector System
Multi-Core Cable
Gas-Permeable Container
Conduit Support Device
Ink Supply Tube
Foaming Resin Composition

49 patents:

1. 12735665 - Gas-permeable container, and culture apparatus and culture system each using same (2026-09-15),
2. 12715967 - Fluororesin film (2026-08-25),
3. 12611490 - Polytetrafluoroethylene tube and medical tube using same (2026-04-28),
4. 12560260 - Multilayer tube (2026-02-24),
5. 12454093 - Heat-shrinkable tube having tearable properties (2025-10-28),
6. 12287052 - Conduit support device (2025-04-29),
7. 12257808 - Tube and pump using same (2025-03-25),
8. 12249441 - Transmission line (2025-03-11),
9. 12095243 - Supporting member, conduit supporting device, and processing apparatus provided therewith (2024-09-17),
10. 12090453 - Nozzle for liquid phase ejection (2024-09-17),
11. 12083248 - Polytetrafluoroethylene tube (2024-09-10),
12. 11998663 - Polytetrafluoroethylene tube and medical tube using same (2024-06-04),
13. 11763962 - Cable (2023-09-19),
14. 11721966 - Supporting member, conduit supporting device, and processing apparatus provided therewith (2023-08-08),
15. 11655916 - Conduit support device (2023-05-23),
Company Overview
Junkosha Inc., headquartered in Kasama, Japan, specializes in the development and manufacturing of advanced materials and components for various industries. The company focuses on innovative solutions such as heat-shrinkable tubes, polytetrafluoroethylene tubes, and conduit support devices. Their expertise extends to cable harnesses, coaxial cables, and fluororesin compositions, catering to sectors that demand high-performance and reliable materials. Junkosha's commitment to quality and innovation positions it as a key player in the field of specialized industrial solutions.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

Junkosha Inc. USPTO Patent Assignee Logo
49 Patents

#1 in Kasama

#1,737 in Japan

#14,277 in the World

Kasama, JP
Kasama, Japan

Junkosha Inc.

Forward Citations = 55

51 inventors:

goldMedal Hiroshi Takeuchi (7 out of 8 patents)

silverMedal Daiki Hiraoka (6 out of 6 patents)

bronzeMedal Yasuhiro Misu (6 out of 6 patents)

4.  Masahiro Suzuki (6 out of 28 patents)

5.  Nozomi Ohshika (4 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Junkosha Inc.. Retrieved from https://idiyas.com/company/junkosha

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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