For the Inventor, By the Inventor

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Cleanup Corporation

USPTO Granted Patents = 2

EPO Patents = 1

Forward Citations = 157

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6 inventors (with patents filed for the assignee):

Hideto Watabe (2 out of 2 patents)

Keizo Watanabe (1 out of 6 patents)

Masanori Takagi (1 out of 9 patents)

4. Yoshinori Momose (1 out of 1 patent)

5. Masahisa Kujiraoka (1 out of 1 patent)

6. Hiroshi Sato (1 out of 101 patents)

7. Daisaku Maeda (3 patents)

8. Keijiro Shigeru (9 patents)

9. Kazuyuki Watanabe (3 patents)

10. Katsutoshi Obata (0 patent)

11. Yuichiro Kida (0 patent)

12. Masahiro Fukadu (0 patent)

13. Sayuri Endo (0 patent)

2 patents: Sort by Forward Citations

1. 5223829 - Electric locker apparatus with automatic locker box designation device (1993-06-29),

2. 5172970 - Electric locker apparatus with emergency unlocking (1992-12-22),

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USPTO Data Jan 1 1976 - Jan 6 2026

2 Patents

#4,058 in Tokyo

#10,966 in Japan

Cleanup Corporation

Forward Citations = 157

6 inventors:

Hideto Watabe (2 out of 2 patents)

Keizo Watanabe (1 out of 6 patents)

Masanori Takagi (1 out of 9 patents)

4. Yoshinori Momose (1 out of 1 patent)

5. Masahisa Kujiraoka (1 out of 1 patent)

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