Growing community of inventors

Kariya, Japan

Hiroshi Yamada

Average Co-Inventor Count = 7.00

ph-index = 1

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 = 4

Hiroshi YamadaToshio Kawamura (2 patents)Hiroshi YamadaMasamichi Asai (2 patents)Hiroshi YamadaKenichi Mukoyama (2 patents)Hiroshi YamadaHiroshi Hikima (2 patents)Hiroshi YamadaTakao Sugino (2 patents)Hiroshi YamadaAkira Takahashi (2 patents)Hiroshi YamadaHiroshi Yamada (2 patents)Toshio KawamuraToshio Kawamura (8 patents)Masamichi AsaiMasamichi Asai (4 patents)Kenichi MukoyamaKenichi Mukoyama (3 patents)Hiroshi HikimaHiroshi Hikima (3 patents)Takao SuginoTakao Sugino (2 patents)Akira TakahashiAkira Takahashi (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toshiba Ceramics Co., Ltd. (2 from 189 patents)

2. Sumitomo Metal Industries, Inc. (1 from 929 patents)

3. Sumitomo Metal Indus., Ltd. (1 from 1 patent)


2 patents:

1. 5035919 - Repairing material of a brick and a method of repairing a brick

2. 4970180 - Repairing material of a brick

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as of
12/21/2025
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