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For the Inventor, By the Inventor

Tokyo, Japan

501 Kokusai Denshin Denwa Kabushiki Kaisha


USPTO Granted Patents = 1

Forward Citations = 25

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4 inventors (with patents filed for the assignee):

goldMedal Kazuo Sakai (1 out of 40 patents)

silverMedal Shigeyuki Akiba (1 out of 82 patents)

bronzeMedal Yuichi Matsushima (1 out of 46 patents)

4.  Katsuyuki Utaka (1 out of 38 patents)


1 patent:

1. 4653058 - Distributed feedback semiconductor laser with monitor (1987-03-24),
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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#5,735 in Tokyo

#15,539 in Japan

...
Tokyo, Japan

501 Kokusai Denshin Denwa Kabushiki Kaisha

Forward Citations = 25

4 inventors:

goldMedal Kazuo Sakai (1 out of 40 patents)

silverMedal Shigeyuki Akiba (1 out of 82 patents)

bronzeMedal Yuichi Matsushima (1 out of 46 patents)

4.  Katsuyuki Utaka (1 out of 38 patents)

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