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For the Inventor, By the Inventor

Tokyo, Japan

Kabushiki Kaisha Top

Calculating rank
USPTO Granted Patents = 34

% Expired Patents = 26.5


Trademarks = 4

Forward Citations = 341

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24 inventors (with patents filed for the assignee):

goldMedal Issei Kawachi (9 out of 10 patents)

silverMedal Takuya Miyazaki (4 out of 8 patents)

bronzeMedal Yoshihiko Himura (4 out of 4 patents)

4.  Norihito Wada (3 out of 5 patents)

5.  Kiwamu Yanagawa (3 out of 3 patents)

6.  Atsushi Chiba (2 out of 30 patents)

7.  Daisuke Nakagawa (2 out of 8 patents)

8.  Sho Takayanagi (2 out of 2 patents)

9.  Dai Takahashi (2 out of 2 patents)

10.  Susumu Kobayashi (2 out of 5 patents)

11.  Kazuhiro Ichikawa (2 out of 5 patents)

12.  Koichi Sugita (2 out of 2 patents)

13.  Takashi Suzuki (2 out of 196 patents)

14.  Kazutoshi Kan (1 out of 5 patents)

15.  Kaoru Kobayashi (1 out of 3 patents)


Core Competencies:
Syringe Connector
Blood Collection Kit
Medical Needle
Surgical System
High-Frequency Therapy
Electrode Needle
Ligation Apparatus
Endoscopic Instrument
Ultraviolet Pasteurizer
Pump Assembly
Temperature Sensor
Delivery Container

34 patents:

1. D1065527 - Syringe connector (2025-03-04),
2. D1065526 - Syringe connector (2025-03-04),
3. D1065525 - Syringe connector (2025-03-04),
4. D1065524 - Syringe connector (2025-03-04),
5. 12194456 - Blood collection tube holder and blood collection kit (2025-01-14),
6. D1038391 - Syringe connector (2024-08-06),
7. D1038390 - Syringe connector (2024-08-06),
8. D1038389 - Syringe connector (2024-08-06),
9. D1038388 - Syringe connector (2024-08-06),
10. D1037443 - Syringe connector (2024-07-30),
11. 11826076 - Medical needle with protector (2023-11-28),
12. 11369442 - Surgical system (2022-06-28),
13. 11272833 - Treatment-instrument insertion aid (2022-03-15),
14. 11122964 - Treatment-instrument insertion aid (2021-09-21),
15. 11026721 - Medical needle with protector (2021-06-08),
Company Overview
Kabushiki Kaisha Top is a Tokyo-based company specializing in the development and manufacturing of advanced materials and components for various industries. The organization focuses on innovative solutions in fields such as electronics, automotive, and industrial applications. With a commitment to research and development, Kabushiki Kaisha Top aims to enhance product performance and sustainability, leveraging cutting-edge technology to meet the evolving needs of its global clientele.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

34 Patents

#1,011 in Tokyo

#2,172 in Japan

#19,664 in the World

Tokyo, JP
Tokyo, Japan

Kabushiki Kaisha Top

Forward Citations = 341

24 inventors:

goldMedal Issei Kawachi (9 out of 10 patents)

silverMedal Takuya Miyazaki (4 out of 8 patents)

bronzeMedal Yoshihiko Himura (4 out of 4 patents)

4.  Norihito Wada (3 out of 5 patents)

5.  Kiwamu Yanagawa (3 out of 3 patents)

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

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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