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For the Inventor, By the Inventor

Saitama, Japan

Hama Corporation Co., Ltd.


USPTO Granted Patents = 3

Forward Citations = 89

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1 inventor (with patents filed for the assignee):

goldMedal Masafumi Hamasaki (3 out of 3 patents)


3 patents:

1. 4895135 - Self-heating container (1990-01-23),
2. 4773389 - Self-heating foodstuff container (1988-09-27),
3. 4762113 - Self-heating container (1988-08-09),
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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#126 in Saitama 343-0827

#8,771 in Japan

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Saitama, Japan

Hama Corporation Co., Ltd.

Forward Citations = 89

1 inventor:

goldMedal Masafumi Hamasaki (3 out of 3 patents)

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