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For the Inventor, By the Inventor

Tokyo, Japan

Kyowa Denki Kagaku Kabushiki Kaisha


USPTO Granted Patents = 3

Forward Citations = 93

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2 inventors (with patents filed for the assignee):

goldMedal Kashichi Hirota (2 out of 24 patents)

silverMedal Hirota Kashichi (1 out of 1 patent)


3 patents:

1. 4244096 - Speaker box manufacturing method (1981-01-13),
2. D249260 - Combined cartridge recorder and player (1978-09-05),
3. 4070546 - Portable stereo audio apparatus (1978-01-24),
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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#3,267 in Tokyo

#8,766 in Japan

...
Tokyo, Japan

Kyowa Denki Kagaku Kabushiki Kaisha

Forward Citations = 93

2 inventors:

goldMedal Kashichi Hirota (2 out of 24 patents)

silverMedal Hirota Kashichi (1 out of 1 patent)

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