Growing community of inventors

Yokohama, Japan

Rika Mama

Average Co-Inventor Count = 4.09

ph-index = 3

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 = 94

Rika Mama ↔ Masanori Oda (2 patents)Rika Mama ↔ Yuki Takahashi (2 patents)Rika Mama ↔ Sakiko Sato (2 patents)Rika Mama ↔ Yusuke Ishihara (2 patents)Rika Mama ↔ Tomoko Ikenoue (1 patent)Rika Mama ↔ Nahoki Uegaki (1 patent)Rika MamaRika Mama (3 patents)Masanori OdaMasanori Oda (26 patents)Yuki TakahashiYuki Takahashi (20 patents)Sakiko SatoSakiko Sato (5 patents)Yusuke IshiharaYusuke Ishihara (3 patents)Tomoko IkenoueTomoko Ikenoue (2 patents)Nahoki UegakiNahoki Uegaki (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Brother Industries, Ltd. (3 from 982 patents)


3 patents:

1. D687859 - Portion of a display screen with an icon

2. D687860 - Portion of a display screen with an icon

3. D653261 - Portion of a display screen with an icon

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as of
1/13/2026
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