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Chiba, Japan

Sigeru Wada

Average Co-Inventor Count = 6.00

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 = 0

Sigeru WadaShinzo Imamura (4 patents)Sigeru WadaNobuhiko Ito (4 patents)Sigeru WadaHideaki Takaoka (4 patents)Sigeru WadaHideo Muraoka (4 patents)Sigeru WadaAkio Hasebe (4 patents)Sigeru WadaSigeru Wada (4 patents)Shinzo ImamuraShinzo Imamura (12 patents)Nobuhiko ItoNobuhiko Ito (9 patents)Hideaki TakaokaHideaki Takaoka (6 patents)Hideo MuraokaHideo Muraoka (6 patents)Akio HasebeAkio Hasebe (6 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Soda Aromatic Co., Ltd. (3 from 18 patents)

2. Toray Industries, Inc. (1 from 3,477 patents)


4 patents:

1. 6600070 - Methods for making 2-(&ohgr;-alkoxycarbonylalkanoyl)-4-butanolide, ester of &ohgr;-hydroxy-(&ohgr;-3)-ketoaliphatic acid, and derivatives thereof

2. 6528668 - Methods for making 2-(&ohgr;-alkoxycarbonylalkanoyl)-4-butanolide, ester of &ohgr;-hydroxy-(&ohgr;-3)-ketoaliphatic acid, and derivatives thereof

3. 6475133 - Methods for making 2-(&ohgr;-alkoxycarbonylalkanoyl)-4-butanolide, ester of omega-hydroxy-(&ohgr;-3)-ketoaliphatic acid, and derivatives thereof

4. 6291688 - Processes for preparing 2-(omega-alkoxycarbonylalkanoyl)-4- butanolides omega-hydroxy-(omega-3)-keto fatty esters, and derivatives thereof

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as of
12/31/2025
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