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Dac Engineering Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 131

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4 inventors (with patents filed for the assignee):

Shuichi Maeda (2 out of 2 patents)

Shigeru Hirooka (1 out of 2 patents)

Shigehiro Yamamoto (1 out of 1 patent)

4. Toshihiko Yamaguchi (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 4668095 - Positioning device (1987-05-26),

2. 4566032 - Visually guided vehicle (1986-01-21),

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USPTO Data Jan 1 1976 - Jan 13 2026

2 Patents

#242 in Kyoto 615-0031

#10,976 in Japan

Dac Engineering Co., Ltd.

Forward Citations = 131

4 inventors:

Shuichi Maeda (2 out of 2 patents)

Shigeru Hirooka (1 out of 2 patents)

Shigehiro Yamamoto (1 out of 1 patent)

4. Toshihiko Yamaguchi (1 out of 1 patent)

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