Hiroyoshi Nawa

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Surface treating cleaning method
- Patent number 5,290,361
- Issue date Mar 1, 1994
- Wako Pure Chemical Industries, Ltd.
- Ichiro Hayashida
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Process for producing 3-tetrazolyl pyrido[1,2-a]pyrimidine derivatives
- Patent number 5,081,243
- Issue date Jan 14, 1992
- Wako Pure Chemical Industries, Ltd.
- Atsunori Sano
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Novel process for producing phosphatidylcholine derivatives
- Patent number 5,000,880
- Issue date Mar 19, 1991
- Wako Pure Chemical Industries, Ltd.
- Masami Ishihara
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing azoimino ethers by oxidation of hydiazonitriles
- Patent number 4,950,742
- Issue date Aug 21, 1990
- Wako Pure Chemical Industries, Ltd.
- Kazuo Ichiriki
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.gamma.-L-glutamyl-4-nitroanilide derivatives and process for deter...
- Patent number 4,851,572
- Issue date Jul 25, 1989
- Wako Pure Chemical Industries, Ltd.
- Hiroshi Ogata
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Oxalic acid ester derivatives
- Patent number 4,578,499
- Issue date Mar 25, 1986
- Wako Pure Chemical Industries Ltd.
- Kazuhiro Imai
- C07 - ORGANIC CHEMISTRY