Growing community of inventors

Kobe, Japan

Tadayasu Koga

Average Co-Inventor Count = 3.04

ph-index = 5

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 = 87

Tadayasu KogaAkiko Ashiwa (2 patents)Tadayasu KogaMakoto Isono (1 patent)Tadayasu KogaKazuhiro Yamada (1 patent)Tadayasu KogaKeiko Tanii (1 patent)Tadayasu KogaTsugio Arai (1 patent)Tadayasu KogaChiaki Kamimura (1 patent)Tadayasu KogaKentaro Yamamoto (1 patent)Tadayasu KogaHideto Maeda (1 patent)Tadayasu KogaSatomi Nakamura (1 patent)Tadayasu KogaKazuya Iwata (1 patent)Tadayasu KogaChristopher David Leahy (1 patent)Tadayasu KogaIshiro Hori (1 patent)Tadayasu KogaChiaki Yoshino Kogyosho Co Ltd Kamimura (0 patent)Tadayasu KogaTugio Yoshino Kogyosho Co Ltd Arai (0 patent)Tadayasu KogaTadayasu Koga (5 patents)Akiko AshiwaAkiko Ashiwa (23 patents)Makoto IsonoMakoto Isono (14 patents)Kazuhiro YamadaKazuhiro Yamada (6 patents)Keiko TaniiKeiko Tanii (5 patents)Tsugio AraiTsugio Arai (4 patents)Chiaki KamimuraChiaki Kamimura (3 patents)Kentaro YamamotoKentaro Yamamoto (2 patents)Hideto MaedaHideto Maeda (1 patent)Satomi NakamuraSatomi Nakamura (1 patent)Kazuya IwataKazuya Iwata (1 patent)Christopher David LeahyChristopher David Leahy (1 patent)Ishiro HoriIshiro Hori (1 patent)Chiaki Yoshino Kogyosho Co Ltd KamimuraChiaki Yoshino Kogyosho Co Ltd Kamimura (0 patent)Tugio Yoshino Kogyosho Co Ltd AraiTugio Yoshino Kogyosho Co Ltd Arai (0 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. The Procter Gamble Company (5 from 17,164 patents)

2. Yoshino Kogyosho Co., Ltd. (1 from 665 patents)


5 patents:

1. 7451877 - Refill case

2. D561944 - Cosmetic container

3. D523176 - Cosmetic container

4. D523177 - Cosmetic container

5. D480177 - Back washing device

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as of
12/8/2025
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