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For the Inventor, By the Inventor

Kahoku, Japan

Pfu Limited


USPTO Granted Patents = 708

% Expired Patents = 18.9



Trademarks = 1

Forward Citations = 5,110

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478 inventors (with patents filed for the assignee):

goldMedal Satoshi Kuroda (57 out of 57 patents)

silverMedal Minoru Sugitani (46 out of 46 patents)

bronzeMedal Hiroyuki Kuroda (38 out of 38 patents)

4.  Takayuki Umi (33 out of 33 patents)

5.  Kiyoto Kosaka (31 out of 31 patents)

6.  Masanobu Hongo (31 out of 31 patents)

7.  Kiichiro Shimosaka (28 out of 29 patents)

8.  Masanari Takabatake (28 out of 28 patents)

9.  Toshiki Satoji (28 out of 29 patents)

10.  Kiichi Taniho (26 out of 26 patents)

11.  Shuichi Morikawa (25 out of 26 patents)

12.  Shigeharu Okano (24 out of 24 patents)

13.  Shuji Hashimoto (23 out of 23 patents)

14.  Ryoichi Yasukawa (22 out of 22 patents)

15.  Minoru Masuda (19 out of 76 patents)


Core Competencies:
Medium Conveyance
Image Generation
Multi-Feed Detection
Skew Correction
Control System
Sound Wave Sensors
Ejection Tray
Document Feeder
Input Device
Data Management
Medium Detection
Torque Control

708 patents:

1. 12719997 - Image reading apparatus, information processing method, and non-transitory recording medium for editing page data of a multi-page document in external storage (2026-08-25),
2. 12712976 - MEDIA CONVEYING APPARATUS, IMAGE PROCESSING SYSTEM, AND MEDIA CONVEYING METHOD (2026-08-18),
3. 12709512 - MEDIA EJECTING APPARATUS, CONTROL METHOD, AND NON-TRANSITORY COMPUTER-EXECUTABLE MEDIUM (2026-08-18),
4. 12709503 - MEDIUM CONVEYANCE DEVICE (2026-08-18),
5. 12709502 - MEDIA FEEDING APPARATUS (2026-08-18),
6. 12698172 - Medium conveying apparatus, medium conveying method, and computer-readable non-transitory medium (2026-08-04),
7. 12692107 - Medium conveying apparatus (2026-07-28),
8. 12691471 - Object imaging apparatus and object recognition apparatus (2026-07-28),
9. 12689694 - Information processing device to display sample image and comparative sample image of mode specified by a user side by side (2026-07-21),
10. 12679679 - Media feeding apparatus, media feeding method, and non-transitory recording medium (2026-07-14),
11. 12666135 - Image management system, image capturing device, imaging processing method, and non-transitory computer-executable medium (2026-06-23),
12. 12654970 - Medium conveying apparatus for correcting a skew of a medium using three sensors (2026-06-16),
13. D1129439 - Scanner (2026-06-09),
14. 12649640 - Medium discharge device, control method, and control program (2026-06-09),
15. 12626537 - Authentication apparatus, authentication method, and recording medium (2026-05-12),
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.

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USPTO Data Jan 1 1976 - Sep 15 2026

Pfu Limited
708 Patents

#1 in Kahoku

#291 in Japan

#1,407 in the World

Kahoku, JP
Kahoku, Japan

Pfu Limited

Forward Citations = 5,110

478 inventors:

goldMedal Satoshi Kuroda (57 out of 57 patents)

silverMedal Minoru Sugitani (46 out of 46 patents)

bronzeMedal Hiroyuki Kuroda (38 out of 38 patents)

4.  Takayuki Umi (33 out of 33 patents)

5.  Kiyoto Kosaka (31 out of 31 patents)

Please report any incorrect information to [email protected]
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