Growing community of inventors

Osaka, Japan

Mayumi Matsumoto

Average Co-Inventor Count = 1.50

ph-index = 1

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 = 24

Mayumi MatsumotoToshiharu Jitsuda (2 patents)Mayumi MatsumotoShinichi Kitao (2 patents)Mayumi MatsumotoKanako Oe (1 patent)Mayumi MatsumotoMayumi Matsumoto (7 patents)Toshiharu JitsudaToshiharu Jitsuda (3 patents)Shinichi KitaoShinichi Kitao (2 patents)Kanako OeKanako Oe (7 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Clover Mfg. Co., Ltd. (7 from 137 patents)


7 patents:

1. D971586 - Connecting end portion of a knitting needle

2. 11220767 - Connection structure connecting knitting needle body and cable and circular knitting needle having the same

3. D912552 - Plate-type handicraft gauge

4. D805293 - Marker ring for knitting

5. D678670 - Needle holder

6. D663109 - Crochet hook

7. D628101 - Knitting needle gauge plate

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as of
12/11/2025
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