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For the Inventor, By the Inventor

Hyogo, Japan

Biophragm Co., Inc.


USPTO Granted Patents = 1

Forward Citations = 1

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1 inventor (with patents filed for the assignee):

goldMedal Tadashi Nagaoka (1 out of 10 patents)


1 patent:

1. D722592 - Speaker box (2015-02-17),
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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#213 in Hyogo

#15,539 in Japan

...
Hyogo, Japan

Biophragm Co., Inc.

Forward Citations = 1

1 inventor:

goldMedal Tadashi Nagaoka (1 out of 10 patents)

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