Growing community of inventors

Tokyo, Japan

Haruka Ogawa

Average Co-Inventor Count = 9.00

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 = 13

Haruka Ogawa ↔ Tsuyoshi Aoyama (3 patents)Haruka Ogawa ↔ Yoshimasa Hayashi (3 patents)Haruka Ogawa ↔ Akira Ito (3 patents)Haruka Ogawa ↔ Hiroyuki Ishii (3 patents)Haruka Ogawa ↔ Hitofusa Mitani (3 patents)Haruka Ogawa ↔ Kazuhiko Shichiku (3 patents)Haruka Ogawa ↔ Kiyoshige Nishibayashi (3 patents)Haruka Ogawa ↔ Tadashi Nouchi (3 patents)Haruka OgawaHaruka Ogawa (3 patents)Tsuyoshi AoyamaTsuyoshi Aoyama (6 patents)Yoshimasa HayashiYoshimasa Hayashi (5 patents)Akira ItoAkira Ito (4 patents)Hiroyuki IshiiHiroyuki Ishii (4 patents)Hitofusa MitaniHitofusa Mitani (3 patents)Kazuhiko ShichikuKazuhiko Shichiku (3 patents)Kiyoshige NishibayashiKiyoshige Nishibayashi (3 patents)Tadashi NouchiTadashi Nouchi (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Obayashi Corporation (3 from 41 patents)

2. Nichireki Co., Ltd. (3 from 5 patents)

3. Toho Natural Gas Company, Limited (3 from 3 patents)


3 patents:

1. 5891224 - Rubber modified asphalt type of water-proofing compositions

2. 5866211 - Rubber modified asphalt type of water-proofing compositions

3. 5674313 - Rubber modified asphalt type of water-proofing composition

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as of
12/8/2025
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