Growing community of inventors

Hikone, Japan

Yayoi Hashimoto

Average Co-Inventor Count = 2.50

ph-index = 4

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 = 64

Yayoi HashimotoToshiro Koyanagi (5 patents)Yayoi HashimotoHaruyuki Takagi (3 patents)Yayoi HashimotoYayoi Hashimoto (5 patents)Toshiro KoyanagiToshiro Koyanagi (12 patents)Haruyuki TakagiHaruyuki Takagi (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Takata Corporation (4 from 1,161 patents)

2. Takada Corporation (1 from 3 patents)


5 patents:

1. 5671971 - Apparatus for adjusting fastening position of fastening means in seat

2. 5378038 - Restraining protective foldable seat for infants

3. D353057 - Car chair for a child

4. 5303979 - Apparatus for adjusting fastening position of fastening means in seat

5. D343738 - Car chair

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as of
12/4/2025
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