For the Inventor, By the Inventor

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Jfe Holdings, Inc.

USPTO Granted Patents = 3

% Expired Patents = 100.0

Forward Citations = 91

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10 inventors (with patents filed for the assignee):

Yotaro Ohno (3 out of 10 patents)

Masatsugu Mizuguchi (3 out of 11 patents)

Masami Ono (3 out of 8 patents)

4. Tsutomu Shikada (3 out of 17 patents)

5. Kaoru Fujimoto (2 out of 9 patents)

6. Takashi Ogawa (2 out of 53 patents)

7. Keiichi Okuyama (1 out of 8 patents)

8. Seiji Aoki (1 out of 6 patents)

9. Keiji Tomura (1 out of 7 patents)

10. Takashi Ogawa (1 out of 41 patents)

3 patents: Sort by Forward Citations

1. 7033972 - Catalyst for producing dimethyl ether, method for producing catalyst and method for producing dimethyl ether (2006-04-25),

2. 7015255 - Medium oil for slurry-bed reaction process and process of producing dimethyl ether (2006-03-21),

3. 6800665 - Method for producing dimethyl ether (2004-10-05),

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USPTO Data Jan 1 1976 - Oct 6 2026

3 Patents

#3,543 in Tokyo

#8,922 in Japan

Jfe Holdings, Inc.

Forward Citations = 91

10 inventors:

Yotaro Ohno (3 out of 10 patents)

Masatsugu Mizuguchi (3 out of 11 patents)

Masami Ono (3 out of 8 patents)

4. Tsutomu Shikada (3 out of 17 patents)

5. Kaoru Fujimoto (2 out of 9 patents)

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