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Ishikawa, Japan

Pfu Limited

USPTO Granted Patents = 678

CIPO Patents = 5

EPO Patents = 8

Trademarks = 1

Forward Citations = 4,995

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465 inventors (with patents filed for the assignee):

Satoshi Kuroda (56 out of 56 patents)

Minoru Sugitani (46 out of 46 patents)

Hiroyuki Kuroda (38 out of 38 patents)

4. Takayuki Umi (31 out of 31 patents)

5. Kiyoto Kosaka (31 out of 31 patents)

6. Masanobu Hongo (31 out of 31 patents)

7. Masanari Takabatake (28 out of 28 patents)

8. Toshiki Satoji (28 out of 29 patents)

9. Kiichi Taniho (26 out of 26 patents)

10. Shuichi Morikawa (25 out of 26 patents)

11. Shigeharu Okano (24 out of 24 patents)

12. Shuji Hashimoto (23 out of 23 patents)

13. Ryoichi Yasukawa (22 out of 22 patents)

14. Kiichiro Shimosaka (19 out of 20 patents)

15. Minoru Masuda (19 out of 76 patents)

Core Competencies:

Medium Conveyance Apparatus

Image Reading Device

File Management Device

Double Feeding Detection Device

Keyboard Apparatus

Medium Ejection Apparatus

Control Method

Medium Transport Device

Separation Roller

Skew Correction

Touch Pad

Sensor Detection

678 patents: Sort by Forward Citations

1. 12503326 - Medium conveying apparatus including pair of guides movably located according to conveyance of medium (2025-12-23),

2. D1100908 - Scanner (2025-11-04),

3. 12448241 - Medium conveying apparatus to detect predetermined medium based on lift of medium (2025-10-21),

4. 12441566 - Medium conveyance apparatus to determine whether tilt angle of medium has changed based on time from when any sensor detects medium to when another sensor detects medium (2025-10-14),

5. 12415692 - Medium conveyance device (2025-09-16),

6. 12411806 - Control of deleting unnecessary data files after storing generated data files in external storage area (2025-09-09),

7. 12410026 - Medium conveyance device, control method, and control program (2025-09-09),

8. 12410023 - Medium conveying apparatus (2025-09-09),

9. 12384173 - Medium conveyance device, control method, and control program (2025-08-12),

10. 12365555 - Medium feed apparatus to put separation roller on hold until front end of medium passes separation part (2025-07-22),

11. D1083923 - Keyboard (2025-07-15),

12. 12351423 - Medium conveying apparatus detecting bound medium based on lift of medium (2025-07-08),

13. 12340030 - Keyboard apparatus in which touch pad is located based on Fitts's law (2025-06-24),

14. 12330904 - Medium conveying apparatus to detect multi-feed based on continuous overlap portion (2025-06-17),

15. 12330903 - Medium conveyance device, control method, and control program (2025-06-17),

PFU Limited is a subsidiary of Fujitsu Limited, specializing in developing and manufacturing imaging and scanning solutions. With over 50 years of experience, PFU offers a range of advanced document scanners, image scanners, and enterprise content management solutions. Their products are widely used in government organizations, businesses, and personal use, providing efficient and reliable document management solutions.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

678 Patents

#1 in Ishikawa

#298 in Japan

#1,434 in the World

Ishikawa, Japan

Pfu Limited

Forward Citations = 4,995

465 inventors:

Satoshi Kuroda (56 out of 56 patents)

Minoru Sugitani (46 out of 46 patents)

Hiroyuki Kuroda (38 out of 38 patents)

4. Takayuki Umi (31 out of 31 patents)

5. Kiyoto Kosaka (31 out of 31 patents)

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