Growing community of inventors

Ishikawa-ken, Japan

Hiroyasu Matsumoto

Average Co-Inventor Count = 1.20

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 = 34

Hiroyasu MatsumotoTakatsugu Kato (1 patent)Hiroyasu MatsumotoHiroyasu Matsumoto (3 patents)Takatsugu KatoTakatsugu Kato (6 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Tagawa Kikai Co., Ltd. (2 from 2 patents)

2. Takayama Reed Co., Ltd. (1 from 2 patents)

3. Tagawa Kikai Ltd. (1 from 1 patent)


3 patents:

1. 6874196 - Reed cleaning apparatus for air-jet loom

2. 4976292 - Weft end tensioning and detecting devices for shuttleless loom

3. 4574847 - Rotary drum type weft storage apparatus

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as of
12/15/2025
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