Growing community of inventors

Tokyo, Japan

Mayumi Toba

Average Co-Inventor Count = 1.25

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 = 23

Mayumi TobaMutsumi Kawasaki (8 patents)Mayumi TobaYasuhiro Kawakita (1 patent)Mayumi TobaYukitomo Kawakita (1 patent)Mayumi TobaNagatoshi Kagami (1 patent)Mayumi TobaHitoshi Akatsuka (1 patent)Mayumi TobaHiroji Ishitaka (1 patent)Mayumi TobaMayumi Toba (7 patents)Mutsumi KawasakiMutsumi Kawasaki (8 patents)Yasuhiro KawakitaYasuhiro Kawakita (2 patents)Yukitomo KawakitaYukitomo Kawakita (2 patents)Nagatoshi KagamiNagatoshi Kagami (1 patent)Hitoshi AkatsukaHitoshi Akatsuka (1 patent)Hiroji IshitakaHiroji Ishitaka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Aderans Company Limited (5 from 53 patents)

2. Aderans Holdings Co., Ltd. (2 from 5 patents)


7 patents:

1. 10798981 - Wig base and wig

2. 10786025 - Wig base and wig

3. D854246 - Wig fastener

4. D839482 - Wig base

5. 8141560 - Apparatus for fixing a wig and method for fixing a wig using the apparatus

6. D586506 - Sheet for fixing a wig

7. 7131449 - Wig

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as of
1/3/2026
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