Growing community of inventors

Tokyo, Japan

Koutarou Iwabuchi

Average Co-Inventor Count = 4.61

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 = 72

Koutarou Iwabuchi ↔ Izumi Kuramochi (3 patents)Koutarou Iwabuchi ↔ Hirohisa Hazama (3 patents)Koutarou Iwabuchi ↔ Masahiro Ishida (2 patents)Koutarou Iwabuchi ↔ Hiroshi Tokizaki (2 patents)Koutarou Iwabuchi ↔ Kenji Yamane (1 patent)Koutarou IwabuchiKoutarou Iwabuchi (3 patents)Izumi KuramochiIzumi Kuramochi (75 patents)Hirohisa HazamaHirohisa Hazama (19 patents)Masahiro IshidaMasahiro Ishida (271 patents)Hiroshi TokizakiHiroshi Tokizaki (83 patents)Kenji YamaneKenji Yamane (87 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Yokohama Rubber Co., Ltd. (3 from 2,770 patents)


3 patents:

1. D522962 - Automobile tire

2. D512014 - Automobile tire

3. D489317 - Automobile tire

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as of
1/22/2026
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