Growing community of inventors

Shiga, Japan

Hisashi Nakamura

Average Co-Inventor Count = 8.00

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 = 73

Hisashi Nakamura ↔ Hiroshi Kobayashi (2 patents)Hisashi Nakamura ↔ Osamu Tsutsui (2 patents)Hisashi Nakamura ↔ Atsuo Makita (2 patents)Hisashi Nakamura ↔ Keiji Hayashi (2 patents)Hisashi Nakamura ↔ Shingo Tanaka (2 patents)Hisashi Nakamura ↔ Hideki Kawaguchi (2 patents)Hisashi Nakamura ↔ Masahiro Kayano (2 patents)Hisashi NakamuraHisashi Nakamura (2 patents)Hiroshi KobayashiHiroshi Kobayashi (28 patents)Osamu TsutsuiOsamu Tsutsui (21 patents)Atsuo MakitaAtsuo Makita (16 patents)Keiji HayashiKeiji Hayashi (5 patents)Shingo TanakaShingo Tanaka (4 patents)Hideki KawaguchiHideki Kawaguchi (3 patents)Masahiro KayanoMasahiro Kayano (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Toto Ltd. (2 from 1,192 patents)


2 patents:

1. 4922861 - Multiple-purpose instantaneous gas water heater

2. 4819587 - Multiple-purpose instantaneous gas water heater

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as of
12/20/2025
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