For the Inventor, By the Inventor

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Toeisangyo Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 19

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7 inventors (with patents filed for the assignee):

Akihito Ikegawa (2 out of 59 patents)

Isao Doi (1 out of 49 patents)

Izumi Osawa (1 out of 74 patents)

4. Shuji Iino (1 out of 62 patents)

5. Masaki Asano (1 out of 23 patents)

6. Kenzo Tanaka (1 out of 4 patents)

7. Keiko Nagayasu (1 out of 8 patents)

2 patents: Sort by Forward Citations

1. 5652649 - Charging device and image forming apparatus (1997-07-29),

2. 5376425 - Contact member for controlling an electrostatic state of a chargeable (1994-12-27),

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USPTO Data Jan 1 1976 - Dec 30 2025

2 Patents

#3 in Ikoma

#10,973 in Japan

Toeisangyo Co., Ltd.

Forward Citations = 19

7 inventors:

Akihito Ikegawa (2 out of 59 patents)

Isao Doi (1 out of 49 patents)

Izumi Osawa (1 out of 74 patents)

4. Shuji Iino (1 out of 62 patents)

5. Masaki Asano (1 out of 23 patents)

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