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Ishida Co. Limited

USPTO Granted Patents = 449

% Expired Patents = 30.3

EPO Patents = 233

Trademarks = 3

Forward Citations = 2,235

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308 inventors (with patents filed for the assignee):

Yuji Yokota (33 out of 34 patents)

Yukio Nakagawa (32 out of 41 patents)

Toshiharu Kageyama (30 out of 34 patents)

4. Mikio Kishikawa (28 out of 28 patents)

5. Masao Fukuda (25 out of 46 patents)

6. Makoto Ichikawa (23 out of 25 patents)

7. Seisaku Iwasa (23 out of 23 patents)

8. Masashi Kondo (21 out of 21 patents)

9. Yoshio Iwasaki (20 out of 20 patents)

10. Hideshi Miyamoto (19 out of 20 patents)

11. Robert Bennett (15 out of 16 patents)

12. Tatsuya Arimatsu (14 out of 15 patents)

13. Atsushi Takahashi (14 out of 14 patents)

14. Kazufumi Naito (13 out of 34 patents)

15. Satoshi Hashimoto (12 out of 14 patents)

Core Competencies:

X-Ray Inspection

Combination Weighing

Packaging Apparatus

Article Handling

Production Management

Bag-Making

Inspection Device

Material Conveyance

Weight Checker

Suction Transfer

Label Printing

Food Production

449 patents: Sort by Forward Citations

1. 12504387 - X-ray inspection apparatus and sensitivity correction method for x-ray inspection apparatus (2025-12-23),

2. 12480803 - Combination weighing apparatus (2025-11-25),

3. 12474196 - Distribution supply apparatus and combination weighing apparatus including the same (2025-11-18),

4. 12473113 - Packaging apparatus (2025-11-18),

5. 12467885 - X-ray inspection device (2025-11-11),

6. 12466680 - Film roll supply device (2025-11-11),

7. 12448161 - Bagmaking and packaging apparatus (2025-10-21),

8. D1097063 - Discharge spout (2025-10-07),

9. 12434869 - Bagmaking and packaging apparatus and weighing and packaging system (2025-10-07),

10. 12429438 - X-ray inspection device (2025-09-30),

11. 12428188 - Management system (2025-09-30),

12. 12411096 - Article handling system (2025-09-09),

13. 12397956 - Production management device, production management system, and combination weighing apparatus (2025-08-26),

14. 12378028 - Packaging apparatus (2025-08-05),

15. 12378020 - Bagmaking and packaging apparatus (2025-08-05),

Ishida Co. Limited, headquartered in Kyoto, Japan, is a leader in the development and manufacturing of advanced inspection and packaging solutions. The company specializes in X-ray inspection systems, combination weighing technology, and various packaging apparatuses designed to enhance production efficiency and product safety. Ishida's innovations also encompass article handling, production management, bag-making, and material conveyance, making it a key player in the food and pharmaceutical industries, where precision and reliability are paramount.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

Ishida Co. Limited

449 Patents

#21 in Kyoto 615-0031

#408 in Japan

#2,123 in the World

Ishida Co. Limited

Forward Citations = 2,235

308 inventors:

Yuji Yokota (33 out of 34 patents)

Yukio Nakagawa (32 out of 41 patents)

Toshiharu Kageyama (30 out of 34 patents)

4. Mikio Kishikawa (28 out of 28 patents)

5. Masao Fukuda (25 out of 46 patents)

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