Takeshi Hashimoto

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Wakayama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing 4',4-dihydroxydiphenyl
- Patent number 4,465,878
- Issue date Aug 14, 1984
- Sugai Chemical Industry Co., Ltd.
- Takeshi Hashimoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing 4,4'-diphenyldisulfonic acid and its monopota...
- Patent number 4,382,896
- Issue date May 10, 1983
- Sugai Chemical Industry Co., Ltd.
- Koji Nishihara
- C07 - ORGANIC CHEMISTRY