For the Inventor, By the Inventor

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Okaya-shi, Japan

Pro-Tech Design Corporation

USPTO Granted Patents = 2

Forward Citations = 64

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5 inventors (with patents filed for the assignee):

Takahiko Suzuki (2 out of 8 patents)

Kenji Nagashima (1 out of 47 patents)

Hirono Tsubota (1 out of 9 patents)

4. Takeshi Kodaira (1 out of 3 patents)

5. Nobuyuki Sako (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 8797362 - Rotary input device and electronic equipment (2014-08-05),

2. 8493189 - Haptic feedback controller (2013-07-23),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#1 in Okaya-shi

#10,966 in Japan

Okaya-shi, Japan

Pro-Tech Design Corporation

Forward Citations = 64

5 inventors:

Takahiko Suzuki (2 out of 8 patents)

Kenji Nagashima (1 out of 47 patents)

Hirono Tsubota (1 out of 9 patents)

4. Takeshi Kodaira (1 out of 3 patents)

5. Nobuyuki Sako (1 out of 1 patent)

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