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Masatoshi Itoh

This inventor holds 58 USPTO granted patents and 5 published patent applications and 2 EPO patents, primarily in Image Forming Apparatus. Top assignees: Canon Kabushiki Kaisha, Minolta Camera Kabushiki Kaisha, Comnes Co., Ltd. Active years: 1982-2026.

USPTO Granted Patents = 58 (Patent Applications = 5)

% Patents Active = 87.9

EPO Patents = 2 (Patent Applications = 2)

Average Co-Inventor Count = 1.8

ph-index = 13

Forward Citations = 467(Granted Patents)

Forward Citations (Not Self Cited) = 447(Dec 10, 2025)

Location History:

Tokyo, JP (2000)
Takatsuki, JP (1989 - 2001)
Suntou-gun, JP (2013)
Osaka, JP (1989 - 2014)
Sakai, JP (1982 - 2022)
Mishima, JP (2015 - 2024)
Shizuoka, JP (2022 - 2024)

Company Filing History:

35 out of 92,750

Canon Kabushiki Kaisha

18 out of 2,979

Minolta Camera Kabushiki Kaisha

Comnes Co., Ltd

4. 2 out of 25,924

Sharp Kabushiki Kaisha Corporation

5. 1 out of 2,816

Minolta Company, Ltd.

Years Active: 1982-2026

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Areas of Expertise:

Image Forming Apparatus

Motor Control

Fixing Device

Temperature Control

Liquid Crystal Display

Current Detection

Power Supply

Image Heating

Development Switching

Torque Current

Abnormal State Detection

Stirring Member

58 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12687804 - Image forming apparatus (2026-07-21),

2. 12585219 - Image forming apparatus with processing unit to control cooling fan operation (2026-03-24),

3. 12572106 - Image forming apparatus (2026-03-10),

4. 12368398 - Motor control apparatus and image forming apparatus (2025-07-22),

5. 12282279 - Motor control apparatus and image forming apparatus with limiting coil current flowing through motor coil (2025-04-21),

6. 12191786 - Motor control apparatus and image forming apparatus having plurality of activation modes (2025-01-07),

7. 12019388 - Motor control apparatus configured to control command value of excitation current based on rotation speed of rotor, and image forming apparatus (2024-06-25),

8. 11932031 - Motor control apparatus and image forming apparatus (2024-03-19),

9. 11846904 - Motor control apparatus and image forming apparatus with limiting coil current flowing through motor coil (2023-12-19),

10. 11841640 - Image forming apparatus comprising development switching unit and current detection unit (2023-12-12),

11. 11835900 - Motor control apparatus that controls motor, based on command values of excitation current and of torque current, and image forming apparatus (2023-12-05),

12. 11720040 - Image forming apparatus (2023-08-08),

13. 11673756 - Image forming apparatus and sheet conveyance apparatus (2023-06-13),

14. 11567441 - Image forming apparatus displaying abnormal state of rotary members driven by a motor based on a detected current value (2023-01-31),

15. 11476782 - Image forming apparatus having motor, and motor control apparatus for controlling motor (2022-10-18),

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