Growing community of inventors

Mie, Japan

Ryozo Hamana

Average Co-Inventor Count = 5.00

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 = 2

Ryozo Hamana ↔ Makoto Takiguchi (1 patent)Ryozo Hamana ↔ Shohei Suzuki (1 patent)Ryozo Hamana ↔ Syuji Obayashi (1 patent)Ryozo Hamana ↔ Hisashi Fujita (1 patent)Ryozo HamanaRyozo Hamana (1 patent)Makoto TakiguchiMakoto Takiguchi (3 patents)Shohei SuzukiShohei Suzuki (2 patents)Syuji ObayashiSyuji Obayashi (1 patent)Hisashi FujitaHisashi Fujita (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mitsubishi Chemical Corporation (1 from 2,347 patents)


1 patent:

1. 6388154 - Process for producing styrene

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12/21/2025
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