Growing community of inventors

Tokyo, Japan

Kazuo Hashimoto

Average Co-Inventor Count = 1.00

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 26

Kazuo HashimotoKazuo Hashimoto (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hashimoto Corporation Kabushiki Kaisha (1 from 3 patents)

2. Hashimoto Koporeishon Kabushiki Kaisha (1 from 1 patent)

3. Hashimoto Koporeishon Kabushiki Kaisah (1 from 1 patent)


3 patents:

1. 4069397 - Automatic telephone answering device

2. 4058679 - Telephone answering device without outgoing message tape

3. 3984640 - Telephone answering device without outgoing message tape

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as of
12/3/2025
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