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Bestex Kabushiki-Kaisha

USPTO Granted Patents = 3

Forward Citations = 22

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2 inventors (with patents filed for the assignee):

Sumiaki Tsuru (3 out of 11 patents)

Tooru Nakajima (1 out of 2 patents)

3 patents: Sort by Forward Citations

1. 5597619 - Filtering material and method of producing the same (1997-01-28),

2. 5296254 - Method of producing a filtering material (1994-03-22),

3. 5143752 - Filtering material of apatite and glucan used for surgical masks and (1992-09-01),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#3,260 in Tokyo

#8,767 in Japan

Bestex Kabushiki-Kaisha

Forward Citations = 22

2 inventors:

Sumiaki Tsuru (3 out of 11 patents)

Tooru Nakajima (1 out of 2 patents)

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