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For the Inventor, By the Inventor

Hyogo, Japan

Yamato Scale Company, Limited

Calculating rank
USPTO Granted Patents = 198

% Expired Patents = 3.0



Trademarks = 1

Forward Citations = 1,658

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112 inventors (with patents filed for the assignee):

goldMedal Shozo Kawanishi (32 out of 46 patents)

silverMedal Takashi Hirano (23 out of 23 patents)

bronzeMedal Takayuki Nagai (19 out of 20 patents)

4.  Shinichi Inoue (17 out of 17 patents)

5.  Kazuhiko Yamashita (13 out of 13 patents)

6.  Shoji Yamano (13 out of 13 patents)

7.  Masami Yamanaka (11 out of 11 patents)

8.  Yoshitaka Mikata (11 out of 11 patents)

9.  Toru Kohashi (10 out of 10 patents)

10.  Hiroshi Higuchi (8 out of 12 patents)

11.  Ryo Shimizu (7 out of 7 patents)

12.  Ryo Suemichi (6 out of 6 patents)

13.  Shinichi Miyazaki (6 out of 6 patents)

14.  Yoshiharu Toyoda (6 out of 6 patents)

15.  Yasushi Oshima (6 out of 6 patents)


Core Competencies:
Combination Weigher
Digital Filter
Measuring Hopper
Weighing Device
Hopper Attachment
Transport Mechanism
Wind Tunnel
Graphical User Interface
Load Cell
Electronic Balance
Health Administration
Powder Weighing

198 patents:

1. 12716806 - Measuring device and wind tunnel test device using same (2026-08-25),
2. 12459746 - Transport conveyor and V-shaped transport mechanism including the same (2025-11-04),
3. 12429370 - Hopper attachment structure and weighing device comprising same (2025-09-30),
4. D1092264 - Wind tunnel portion (2025-09-09),
5. D1092257 - Measurement module for wind tunnel (2025-09-09),
6. 12372395 - Combination scale for detecting incorrect insertion of items in the combination scale (2025-07-29),
7. 12352614 - Combination scale with protective cover (2025-07-08),
8. 12351395 - Seal structure and weighing machine comprising same (2025-07-08),
9. 12332108 - Conveyer and combination scale equipped with the same (2025-06-17),
10. D1067929 - Display screen or portion thereof with graphical user interface (2025-03-25),
11. D1062775 - Display screen or portion thereof with graphical user interface (2025-02-18),
12. 12228446 - Combination scale (2025-02-18),
13. 12221286 - Article transport feeder, and combination scale comprising same (2025-02-11),
14. D1051161 - Display screen or portion thereof with graphical user interface (2024-11-12),
15. D1034251 - Wind tunnel portion (2024-07-09),
Company Overview
Yamato Scale Company, Limited, based in Hyogo, Japan, specializes in the development and manufacturing of advanced combination weighing systems. The company focuses on innovative technologies such as combination weighers, digital filters, and measuring hoppers, which enhance precision and efficiency in various industrial applications. With expertise in weighing devices and transport mechanisms, Yamato Scale is committed to delivering high-quality solutions that meet the evolving needs of the food, pharmaceutical, and packaging industries.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

Yamato Scale Company, Limited USPTO Patent Assignee Logo
198 Patents

#8 in Hyogo

#705 in Japan

#4,268 in the World

Hyogo, JP
Hyogo, Japan

Yamato Scale Company, Limited

Forward Citations = 1,658

112 inventors:

goldMedal Shozo Kawanishi (32 out of 46 patents)

silverMedal Takashi Hirano (23 out of 23 patents)

bronzeMedal Takayuki Nagai (19 out of 20 patents)

4.  Shinichi Inoue (17 out of 17 patents)

5.  Kazuhiko Yamashita (13 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yamato Scale Company, Limited. Retrieved from https://idiyas.com/company/yamato-scale-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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